Mercurial > octave
annotate NEWS @ 14654:389f49a88656
NEWS: Re-order list of changes for 3.8.0 to place deprecated functions last.
* NEWS: Re-order list of changes for 3.8.0 to place deprecated functions last.
author | Rik <octave@nomad.inbox5.com> |
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date | Fri, 18 May 2012 13:16:04 -0700 |
parents | b9c02ee24de1 |
children | 7925a7d6547b b7675598094a |
rev | line source |
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1 Summary of important user-visible changes for version 3.8: |
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2 --------------------------------------------------------- |
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3 |
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4 ** Octave now supports nested functions with scoping rules that are |
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5 compatible with Matlab. A nested function is one declared and defined |
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6 within the body of another function. The nested function is only |
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7 accessible from within the enclosing function which makes it one |
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8 method for making private functions whose names do not conflict with those |
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9 in the global namespace (See also subfunctions and private functions). |
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10 In addition, variables in the enclosing function are visible within the |
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11 nested function. This makes it possible to have a pseudo-global variable |
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12 which can be seen by a group of functions, but which is not visible in |
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13 the global namespace. |
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14 |
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15 Example: |
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16 function outerfunc (...) |
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17 ... |
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18 function nested1 (...) |
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19 ... |
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20 function nested2 (...) |
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21 ... |
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22 endfunction |
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23 endfunction |
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24 |
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25 function nested3 (...) |
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26 ... |
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27 endfunction |
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28 endfunction |
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29 |
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30 ** 'emptymatch', 'noemptymatch' options added to regular expressions. |
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31 |
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32 With this addition Octave now accepts the entire set of Matlab options |
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33 for regular expressions. 'noemptymatch' is the default, but 'emptymatch' |
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34 has certain uses where you need to match an assertion rather than actual |
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35 characters. For example, |
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36 |
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37 regexprep ('World', '^', 'Hello ', 'emptymatch') |
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38 => Hello World |
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39 |
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40 where the pattern is actually the assertion '^' or start-of-line. |
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41 |
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42 ** For compatibility with Matlab, the regexp, regexpi, and regexprep |
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43 functions now process backslash escapes in single-quoted pattern |
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44 strings. In addition, the regexprep function now processes backslash |
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45 escapes in single-quoted replacement strings. |
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Nested function support (bug #35772)
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46 |
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47 ** Redundant terminal comma accepted by parser |
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48 |
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49 A redundant terminal comma is now accepted in matrix |
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50 definitions which allows writing code such as |
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51 |
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52 [a,... |
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53 b,... |
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54 c,... |
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55 ] = deal (1,2,3) |
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56 |
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57 ** Warning IDs renamed: |
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58 |
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59 Octave:array-as-scalar => Octave:array-to-scalar |
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60 Octave:array-as-vector => Octave:array-to-vector |
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61 |
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62 ** The colormap function now provides new options--"list", "register", |
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63 and "unregister"--to list all available colormap functions, and to |
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64 add or remove a function name from the list of known colormap |
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65 functions. Packages that implement extra colormaps should use these |
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66 commands with PKG_ADD and PKG_DEL statements. |
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67 |
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68 ** Other new functions added in 3.8.0: |
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69 |
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70 colorcube splinefit |
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71 lines tetramesh |
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72 rgbplot shrinkfaces |
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73 findfigs |
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74 |
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75 ** Deprecated functions. |
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76 |
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77 The following functions were deprecated in Octave 3.4 and have been |
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78 removed from Octave 3.8. |
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79 |
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80 autocor dispatch is_global strerror |
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81 autocov fstat krylovb values |
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82 betai gammai perror |
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83 cellidx glpkmex replot |
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84 cquad is_duplicate_entry saveimage |
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85 |
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86 The following functions have been deprecated in Octave 3.8 and will |
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87 be removed from Octave 3.12 (or whatever version is the second major |
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88 release after 3.8): |
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89 |
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90 <none yet> |
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91 |
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92 The following keywords have been deprecated in Octave 3.8 and will |
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93 be removed from Octave 3.12 (or whatever version is the second major |
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94 release after 3.8): |
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95 |
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96 static |
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97 |
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98 Summary of important user-visible changes for version 3.6: |
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99 --------------------------------------------------------- |
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100 |
14188 | 101 ** The PCRE library is now required to build Octave. If a pre-compiled |
102 package does not exist for your system, you can find PCRE sources | |
103 at http://www.pcre.org | |
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104 |
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105 ** The ARPACK library is no longer distributed with Octave. |
14188 | 106 If you need the eigs or svds functions you must provide an |
107 external ARPACK through a package manager or by compiling it | |
108 yourself. If a pre-compiled package does not exist for your system, | |
109 you can find the current ARPACK sources at | |
110 http://forge.scilab.org/index.php/p/arpack-ng | |
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111 |
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113 automatic broadcasting for array operations which allows you to use |
14082 | 114 operator notation instead of calling bsxfun or expanding arrays (and |
115 unnecessarily wasting memory) with repmat or similar idioms. For | |
116 example, to scale the columns of a matrix by the elements of a row | |
117 vector, you may now write | |
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118 |
14082 | 119 rv .* M |
120 | |
121 In this expression, the number of elements of rv must match the | |
122 number of columns of M. The following operators are affected: | |
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123 |
14082 | 124 plus + .+ |
125 minus - .- | |
126 times .* | |
127 rdivide ./ | |
128 ldivide .\ | |
129 power .^ .** | |
130 lt < | |
131 le <= | |
132 eq == | |
133 gt > | |
134 ge >= | |
135 ne != ~= | |
136 and & | |
137 or | | |
138 atan2 | |
139 hypot | |
140 max | |
141 min | |
142 mod | |
143 rem | |
144 xor | |
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145 |
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146 additionally, since the A op= B assignment operators are equivalent |
14082 | 147 to A = A op B, the following operators are also affected: |
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148 |
14082 | 149 += -= .+= .-= .*= ./= .\= .^= .**= &= |= |
150 | |
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151 See the "Broadcasting" section in the new "Vectorization and Faster |
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152 Code Execution" chapter of the manual for more details. |
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153 |
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154 ** Octave now features a profiler, thanks to the work of Daniel Kraft |
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155 under the Google Summer of Code mentorship program. The manual has |
13262 | 156 been updated to reflect this addition. The new user-visible |
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157 functions are profile, profshow, and profexplore. |
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158 |
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159 ** Overhaul of statistical distribution functions |
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160 |
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161 Functions now return "single" outputs for inputs of class "single". |
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162 |
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163 75% reduction in memory usage through use of logical indexing. |
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164 |
14188 | 165 Random sample functions now use the same syntax as rand and accept |
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166 a comma separated list of dimensions or a dimension vector. |
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167 |
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168 Functions have been made Matlab-compatible with regard to special |
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169 cases (probability on boundaries, probabilities for values outside |
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170 distribution, etc.). This may cause subtle changes to existing |
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171 scripts. |
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172 |
14188 | 173 negative binomial function has been extended to real, non-integer |
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174 inputs. The discrete_inv function now returns v(1) for 0 instead of |
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175 NaN. The nbincdf function has been recoded to use a closed form |
14188 | 176 solution with betainc. |
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177 |
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178 ** strread, textscan, and textread have been completely revamped. |
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179 |
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180 They now support nearly all Matlab functionality including: |
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181 |
14082 | 182 * Matlab-compatible whitespace and delimiter defaults |
183 | |
184 * Matlab-compatible options: 'whitespace', treatasempty', format | |
185 string repeat count, user-specified comment style, uneven-length | |
186 output arrays, %n and %u conversion specifiers (provisionally) | |
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187 |
14082 | 188 ** All .m string functions have been modified for better performance or |
189 greater Matlab compatibility. Performance gains of 15X-30X have | |
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190 been demonstrated. Operations on cell array of strings no longer pay |
14082 | 191 quite as high a penalty as those on 2-D character arrays. |
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192 |
14082 | 193 deblank: Now requires character or cellstr input. |
194 | |
195 strtrim: Now requires character or cellstr input. | |
196 No longer trims nulls ("\0") from string for Matlab | |
197 compatibility. | |
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198 |
14082 | 199 strmatch: Follows documentation precisely and ignores trailing spaces |
200 in pattern and in string. Note that this is documented | |
201 Matlab behavior but the implementation apparently does | |
202 not always follow it. | |
203 | |
204 substr: Now possible to specify a negative LEN option which | |
205 extracts to within LEN of the end of the string. | |
206 | |
207 strtok: Now accepts cellstr input. | |
208 | |
209 base2dec, bin2dec, hex2dec: | |
210 Now accept cellstr inputs. | |
211 | |
212 dec2base, dec2bin, dec2hex: | |
213 Now accept cellstr inputs. | |
214 | |
215 index, rindex: | |
216 Now accept 2-D character array input. | |
217 | |
218 strsplit: Now accepts 2-D character array input. | |
13262 | 219 |
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220 ** Geometry functions derived from Qhull (convhull, delaunay, voronoi) |
14082 | 221 have been revamped. The options passed to the underlying qhull |
222 command have been changed for better results or for Matlab | |
223 compatibility. | |
224 | |
225 convhull: Default options are "Qt" for 2D, 3D, 4D inputs | |
226 Default options are "Qt Qx" for 5D and higher | |
227 | |
228 delaunay: Default options are "Qt Qbb Qc Qz" for 2D and 3D inputs | |
229 Default options are "Qt Qbb Qc Qx" for 4D and higher | |
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230 |
14082 | 231 voronoi: No default arguments |
232 | |
233 ** Date/Time functions updated. Millisecond support with FFF format | |
234 string now supported. | |
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235 |
14082 | 236 datestr: Numerical formats 21, 22, 29 changed to match Matlab. |
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237 Now accepts cellstr input. |
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238 |
14082 | 239 ** The following warning IDs have been removed: |
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240 |
14082 | 241 Octave:associativity-change |
242 Octave:complex-cmp-ops | |
243 Octave:empty-list-elements | |
244 Octave:fortran-indexing | |
245 Octave:precedence-change | |
246 | |
247 ** The warning ID Octave:string-concat has been renamed to | |
248 Octave:mixed-string-concat. | |
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249 |
14082 | 250 ** Octave now includes the following Matlab-compatible preference |
251 functions: | |
13262 | 252 |
14082 | 253 addpref getpref ispref rmpref setpref |
13262 | 254 |
14082 | 255 ** The following Matlab-compatible handle graphics functions have been |
256 added: | |
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257 |
14082 | 258 guidata uipanel uitoolbar |
259 guihandles uipushtool uiwait | |
260 uicontextmenu uiresume waitfor | |
261 uicontrol uitoggletool | |
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262 |
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263 The uiXXX functions above are experimental. |
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264 |
14082 | 265 Except for uiwait and uiresume, the uiXXX functions are not |
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266 supported with the FLTK+OpenGL graphics toolkit. |
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267 |
14082 | 268 The gnuplot graphics toolkit does not support any of the uiXXX |
269 functions nor the waitfor function. | |
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270 |
14082 | 271 ** New keyword parfor (parallel for loop) is now recognized as a valid |
272 keyword. Implementation, however, is still mapped to an ordinary | |
273 for loop. | |
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274 |
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275 ** Other new functions added in 3.6.0: |
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276 |
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277 bicg nthargout usejava |
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278 is_dq_string narginchk waitbar |
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279 is_sq_string python zscore |
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280 is_function_handle register_graphics_toolkit |
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281 loaded_graphics_toolkits recycle |
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282 |
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283 ** Deprecated functions. |
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284 |
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285 The following functions were deprecated in Octave 3.2 and have been |
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286 removed from Octave 3.6. |
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287 |
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288 create_set spcholinv splu |
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289 dmult spcumprod spmax |
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290 iscommand spcumsum spmin |
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291 israwcommand spdet spprod |
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292 lchol spdiag spqr |
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293 loadimage spfind spsum |
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294 mark_as_command sphcat spsumsq |
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295 mark_as_rawcommand spinv spvcat |
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296 spatan2 spkron str2mat |
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297 spchol splchol unmark_command |
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298 spchol2inv split unmark_rawcommand |
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299 |
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300 The following functions have been deprecated in Octave 3.6 and will |
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301 be removed from Octave 3.10 (or whatever version is the second major |
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302 release after 3.6): |
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303 |
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304 cut is_duplicate_entry |
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305 cor polyderiv |
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306 corrcoef shell_cmd |
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307 __error_text__ studentize |
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308 error_text sylvester_matrix |
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309 |
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310 ** The following functions have been modified for Matlab compatibility: |
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311 |
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312 randperm |
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313 |
13251 | 314 Summary of important user-visible changes for version 3.4.3: |
315 ----------------------------------------------------------- | |
316 | |
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317 ** Octave 3.4.3 is a bug fixing release. |
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318 |
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319 Summary of important user-visible changes for version 3.4.2: |
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320 ----------------------------------------------------------- |
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321 |
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322 ** Octave 3.4.2 fixes some minor installation problems that affected |
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323 version 3.4.1. |
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324 |
12709 | 325 Summary of important user-visible changes for version 3.4.1: |
326 ----------------------------------------------------------- | |
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327 |
12709 | 328 ** Octave 3.4.1 is primarily a bug fixing release. |
329 | |
330 ** IMPORTANT note about binary incompatibility in this release: | |
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331 |
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332 Binary compatibility for all 3.4.x releases was originally planned, |
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333 but this is impossible for the 3.4.1 release due to a bug in the way |
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334 shared libraries were built in Octave 3.4.0. Because of this bug, |
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335 .oct files built for Octave 3.4.0 must be recompiled before they |
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336 will work with Octave 3.4.1. |
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337 |
12709 | 338 Given that there would be binary incompatibilities with shared |
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339 libraries going from Octave 3.4.0 to 3.4.1, the following |
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340 incompatible changes were also made in this release: |
12709 | 341 |
342 * The Perl Compatible Regular Expression (PCRE) library is now | |
343 required to build Octave. | |
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344 |
12712 | 345 * Octave's libraries and .oct files are now installed in |
346 subdirectories of $libdir instead of $libexecdir. | |
347 | |
12709 | 348 Any future Octave 3.4.x release versions should remain binary |
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349 compatible with Octave 3.4.1 as proper library versioning is now |
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350 being used as recommended by the libtool manual. |
12709 | 351 |
352 ** The following functions have been deprecated in Octave 3.4.1 and will | |
353 be removed from Octave 3.8 (or whatever version is the second major | |
354 release after 3.4): | |
355 | |
356 cquad is_duplicate_entry perror strerror | |
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357 |
12709 | 358 ** The following functions are new in 3.4.1: |
359 | |
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360 colstyle gmres iscolumn isrow mgorth nproc rectangle |
12709 | 361 |
362 ** The get_forge_pkg function is now private. | |
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363 |
12709 | 364 ** The rectangle_lw, rectangle_sw, triangle_lw, and triangle_sw |
365 functions are now private. | |
366 | |
367 ** The logistic_regression_derivatives and logistic_regression_likelihood | |
368 functions are now private. | |
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369 |
12739 | 370 ** ChangeLog files in the Octave sources are no longer maintained |
371 by hand. Instead, there is a single ChangeLog file generated from | |
372 the Mercurial version control commit messages. Older ChangeLog | |
373 information can be found in the etc/OLD-ChangeLogs directory in the | |
374 source distribution. | |
375 | |
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376 Summary of important user-visible changes for version 3.4: |
9352 | 377 --------------------------------------------------------- |
378 | |
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379 ** BLAS and LAPACK libraries are now required to build Octave. The |
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380 subset of the reference BLAS and LAPACK libraries has been removed |
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381 from the Octave sources. |
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382 |
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383 ** The ARPACK library is now distributed with Octave so it no longer |
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384 needs to be available as an external dependency when building |
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385 Octave. |
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386 |
10118 | 387 ** The `lookup' function was extended to be more useful for |
388 general-purpose binary searching. Using this improvement, the | |
389 ismember function was rewritten for significantly better | |
390 performance. | |
9352 | 391 |
392 ** Real, integer and logical matrices, when used in indexing, will now | |
393 cache the internal index_vector value (zero-based indices) when | |
394 successfully used as indices, eliminating the conversion penalty for | |
10118 | 395 subsequent indexing by the same matrix. In particular, this means it |
396 is no longer needed to avoid repeated indexing by logical arrays | |
397 using find for performance reasons. | |
9888 | 398 |
10118 | 399 ** Logical matrices are now treated more efficiently when used as |
400 indices. Octave will keep the index as a logical mask unless the | |
401 ratio of true elements is small enough, using a specialized | |
402 code. Previously, all logical matrices were always first converted | |
403 to index vectors. This results in savings in both memory and | |
404 computing time. | |
9480 | 405 |
10118 | 406 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
407 functions for better performance. These functions are now faster, | |
408 can deliver more economized results for ranges, and can reuse the | |
409 index cache mechanism described in previous paragraph. | |
410 | |
411 ** The built-in function equivalents to associative operators (`plus', | |
412 `times', `mtimes', `and', and `or') have been extended to accept | |
413 multiple arguments. This is especially useful for summing | |
414 (multiplying, etc.) lists of objects (of possibly distinct types): | |
9408 | 415 |
9449 | 416 matrix_sum = plus (matrix_list{:}); |
417 | |
10118 | 418 ** An FTP object type based on libcurl has been implemented. These |
419 objects allow ftp connections, downloads and uploads to be | |
420 managed. For example, | |
9880 | 421 |
10118 | 422 fp = ftp ("ftp.octave.org); |
423 cd (fp, "gnu/octave"); | |
424 mget (fp, "octave-3.2.3.tar.bz2"); | |
425 close (fp); | |
9880 | 426 |
10118 | 427 ** The default behavior of `assert (observed, expected)' has been |
428 relaxed to employ less strict checking that does not require the | |
429 internals of the values to match. This avoids previously valid | |
430 tests from breaking due to new internal classes introduced in future | |
431 Octave versions. | |
9449 | 432 |
433 For instance, all of these assertions were true in Octave 3.0.x | |
434 but false in 3.2.x due to new optimizations and improvements: | |
435 | |
436 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
437 assert (zeros (0, 0), []) | |
438 assert (2*ones (1, 5), (2) (ones (1,5))) | |
9462 | 439 |
10118 | 440 ** The behavior of library functions `ismatrix', `issquare', and |
441 `issymmetric' has been changed for better consistency. | |
9873 | 442 |
10292 | 443 * The `ismatrix' function now returns true for all numeric, |
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444 logical and character 2-D or N-D matrices. Previously, `ismatrix' |
10292 | 445 returned false if the first or second dimension was zero. |
446 Hence, `ismatrix ([])' was false, | |
447 while `ismatrix (zeros (1,2,0))' was true. | |
9873 | 448 |
10118 | 449 * The `issquare' function now returns a logical scalar, and is |
450 equivalent to the expression | |
451 | |
452 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
453 | |
454 The dimension is no longer returned. As a result, `issquare ([])' | |
455 now yields true. | |
9873 | 456 |
10118 | 457 * The `issymmetric' function now checks for symmetry instead of |
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458 Hermitianness. For the latter, ishermitian was created. Also, |
10118 | 459 logical scalar is returned rather than the dimension, so |
460 `issymmetric ([])' is now true. | |
9873 | 461 |
10118 | 462 ** Function handles are now aware of overloaded functions. If a |
463 function is overloaded, the handle determines at the time of its | |
464 reference which function to call. A non-overloaded version does not | |
465 need to exist. | |
9873 | 466 |
10118 | 467 ** Overloading functions for built-in classes (double, int8, cell, |
468 etc.) is now compatible with Matlab. | |
9408 | 469 |
10323 | 470 ** Function handles can now be compared with the == and != operators, |
471 as well as the `isequal' function. | |
472 | |
10118 | 473 ** Performance of concatenation (using []) and the functions `cat', |
474 `horzcat', and `vertcat' has been improved for multidimensional | |
475 arrays. | |
10117 | 476 |
9547 | 477 ** The operation-assignment operators +=, -=, *= and /= now behave more |
10118 | 478 efficiently in certain cases. For instance, if M is a matrix and S a |
479 scalar, then the statement | |
9547 | 480 |
10118 | 481 M += S; |
9547 | 482 |
10118 | 483 will operate on M's data in-place if it is not shared by another |
484 variable, usually increasing both time and memory efficiency. | |
9547 | 485 |
9558 | 486 Only selected common combinations are affected, namely: |
9547 | 487 |
488 matrix += matrix | |
489 matrix -= matrix | |
9558 | 490 matrix .*= matrix |
491 matrix ./= matrix | |
492 | |
9547 | 493 matrix += scalar |
494 matrix -= scalar | |
495 matrix *= scalar | |
496 matrix /= scalar | |
9558 | 497 |
9552 | 498 logical matrix |= logical matrix |
499 logical matrix &= logical matrix | |
9547 | 500 |
10118 | 501 where matrix and scalar belong to the same class. The left-hand |
502 side must be a simple variable reference. | |
9888 | 503 |
10118 | 504 Moreover, when unary operators occur in expressions, Octave will |
505 also try to do the operation in-place if it's argument is a | |
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506 temporary expression. |
9589 | 507 |
10118 | 508 ** The effect of comparison operators (<, >, <=, and >=) applied to |
509 complex numbers has changed to be consistent with the strict | |
510 ordering defined by the `max', `min', and `sort' functions. More | |
511 specifically, complex numbers are compared by lexicographical | |
512 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
14188 | 513 parts were compared; this can be trivially achieved by converting |
514 the operands to real values with the `real' function. | |
9547 | 515 |
10118 | 516 ** The automatic simplification of complex computation results has |
517 changed. Octave will now simplify any complex number with a zero | |
518 imaginary part or any complex matrix with all elements having zero | |
519 imaginary part to a real value. Previously, this was done only for | |
520 positive zeros. Note that the behavior of the complex function is | |
521 unchanged and it still produces a complex value even if the | |
522 imaginary part is zero. | |
9826 | 523 |
10118 | 524 ** As a side effect of code refactoring in liboctave, the binary |
525 logical operations are now more easily amenable to compiler | |
526 optimizations and are thus significantly faster. | |
9595 | 527 |
10118 | 528 ** Octave now allows user-defined `subsasgn' methods to optimize out |
529 redundant copies. For more information, see the manual. | |
9595 | 530 |
10453 | 531 ** More efficient matrix division handling. Octave is now able to |
10118 | 532 handle the expressions |
9664 | 533 |
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534 M' \ V |
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535 M.' \ V |
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536 V / M |
9664 | 537 |
10118 | 538 (M is a matrix and V is a vector) more efficiently in certain cases. |
539 In particular, if M is triangular, all three expressions will be | |
540 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
10453 | 541 flags. Previously, all three expressions required a physical |
10118 | 542 transpose of M. |
9664 | 543 |
10118 | 544 ** More efficient handling of certain mixed real-complex matrix |
545 operations. For instance, if RM is a real matrix and CM a complex | |
546 matrix, | |
9664 | 547 |
10118 | 548 RM * CM |
9664 | 549 |
550 can now be evaluated either as | |
551 | |
552 complex (RM * real (CM), RM * imag (CM)) | |
553 | |
554 or as | |
555 | |
556 complex (RM) * CM, | |
557 | |
10453 | 558 depending on the dimensions. The first form requires more |
559 temporaries and copying, but halves the FLOP count, which normally | |
560 brings better performance if RM has enough rows. Previously, the | |
561 second form was always used. | |
9664 | 562 |
11111 | 563 Matrix division is similarly affected. |
9664 | 564 |
10118 | 565 ** More efficient handling of triangular matrix factors returned from |
566 factorizations. The functions for computing QR, LU and Cholesky | |
567 factorizations will now automatically return the triangular matrix | |
568 factors with proper internal matrix_type set, so that it won't need | |
569 to be computed when the matrix is used for division. | |
9717 | 570 |
10118 | 571 ** The built-in `sum' function now handles the non-native summation |
572 (i.e., double precision sum of single or integer inputs) more | |
573 efficiently, avoiding a temporary conversion of the whole input | |
574 array to doubles. Further, `sum' can now accept an extra option | |
575 argument, using a compensated summation algorithm rather than a | |
576 straightforward sum, which significantly improves precision if lots | |
577 of cancellation occurs in the summation. | |
9717 | 578 |
10118 | 579 ** The built-in `bsxfun' function now uses optimized code for certain |
580 cases where built-in operator handles are passed in. Namely, the | |
581 optimizations concern the operators `plus', `minus', `times', | |
582 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
583 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
584 functions `min' and `max'. Optimizations only apply when both | |
585 operands are of the same built-in class. Mixed real/complex and | |
586 single/double operations will first convert both operands to a | |
587 common type. | |
9745 | 588 |
10118 | 589 ** The `strfind' and `strrep' functions now have compiled |
590 implementations, facilitating significantly more efficient searching | |
591 and replacing in strings, especially with longer patterns. The code | |
592 of `strcat' has been vectorized and is now much more efficient when | |
593 many strings are concatenated. The `strcmpi' and `strncmpi' | |
594 functions are now built-in functions, providing better performance. | |
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595 |
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596 ** 'str2double' now has a compiled implementation and the API conforms |
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597 to Matlab. The additional Octave-specific features of returning a |
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598 boolean matrix indicating which elements were successfully converted |
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599 has been removed. |
10208 | 600 |
10453 | 601 ** Matlab-style ignoring input and output function arguments using |
11111 | 602 tilde (~) is now supported. Ignored output arguments may be |
603 detected from a function using the built-in function `isargout'. | |
604 For more details, consult the manual. | |
10886 | 605 |
10453 | 606 ** The list datatype, deprecated since the introduction of cells, has |
607 been removed. | |
10276 | 608 |
10453 | 609 ** The accumarray function has been optimized and is now significantly |
610 faster in certain important cases. | |
10054 | 611 |
10292 | 612 ** The behavior of isreal and isnumeric functions was changed to be more |
613 Matlab-compatible. | |
614 | |
10406 | 615 ** The integer math & conversion warnings (Octave:int-convert-nan, |
616 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
11111 | 617 Octave:int-math-overflow) have been removed. |
10406 | 618 |
10453 | 619 ** rem and mod are now built-in functions. They also handle integer |
620 types efficiently using integer arithmetic. | |
10437 | 621 |
10536 | 622 ** Sparse indexing and indexed assignment has been mostly rewritten. |
623 Since Octave uses compressed column storage for sparse matrices, | |
624 major attention is devoted to operations manipulating whole columns. | |
625 Such operations are now significantly faster, as well as some other | |
626 important cases. | |
627 | |
628 Further, it is now possible to pre-allocate a sparse matrix and | |
629 subsequently fill it by assignments, provided they meet certain | |
630 conditions. For more information, consult the `spalloc' function, | |
631 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
11111 | 632 longer always equal in Octave. Octave may also produce a matrix |
633 with nnz < nzmax as a result of other operations, so you should | |
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634 consistently use nnz unless you really want to use nzmax (i.e., the |
11111 | 635 space allocated for nonzero elements). |
10536 | 636 |
637 Sparse concatenation is also affected, and concatenating sparse | |
638 matrices, especially larger collections, is now significantly more | |
11111 | 639 efficient. This applies to both the [] operator and the |
10536 | 640 cat/vertcat/horzcat functions. |
641 | |
11111 | 642 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
14188 | 643 for computing the singular value decomposition using svd, instead |
11111 | 644 of the default xGESVD, using the configuration pseudo-variable |
645 svd_driver. The xGESDD driver can be up to 6x times faster when | |
646 singular vectors are requested, but is reported to be somewhat less | |
10639 | 647 robust on highly ill-conditioned matrices. |
648 | |
649 ** Configuration pseudo-variables, such as page_screen_output or | |
650 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
651 accept a "local" option as second argument, requesting the change | |
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652 to be undone when the current function returns: |
10639 | 653 |
654 function [status, msg] = rm_rf (dir) | |
655 confirm_recursive_rmdir (false, "local"); | |
656 [status, msg] = rmdir (dir, "s"); | |
657 ... | |
658 endfunction | |
659 | |
660 Upon return, confirm_recursive_rmdir will be restored to the value | |
661 it had on entry to the function, even if there were subsequent | |
662 changes to the variable in function rm_rf or any of the functions | |
663 it calls. | |
664 | |
11111 | 665 ** pkg now accepts a -forge option for downloading and installing |
666 packages from Octave Forge automatically. For example, | |
10774 | 667 |
668 pkg install -forge general | |
669 | |
11111 | 670 will automatically download the latest release of the general |
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671 package and attempt to install it. No automatic resolving of |
11111 | 672 dependencies is provided. Further, |
10639 | 673 |
10774 | 674 pkg list -forge |
675 | |
676 can be used to list all available packages. | |
677 | |
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678 ** The internal data representation of structs has been completely |
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679 rewritten to make certain optimizations feasible. The field data |
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680 can now be shared between structs with equal keys but different |
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681 dimensions or values, making operations that preserve the fields |
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682 faster. Economized storage is now used for scalar structs (just |
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683 like most other scalars), making their usage more |
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684 memory-efficient. Certain array-like operations on structs |
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685 (concatenation, uniform cellfun, num2cell) have gained a |
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686 significant speed-up. Additionally, the octave_scalar_map class |
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687 now provides a simpler interface to work with scalar structs within |
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688 a C++ DLD function. |
10639 | 689 |
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b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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12413
diff
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|
690 ** Two new formats are available for displaying numbers: |
11111 | 691 |
12418
b914e8125f1b
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diff
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|
692 format short eng |
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
parents:
12413
diff
changeset
|
693 format long eng |
11111 | 694 |
12418
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
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|
695 Both display numbers in engineering notation, i.e., mantissa + |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
696 exponent where the exponent is a multiple of 3. |
10776
062304bd692e
Update NEWS with description of new engineering format for numbers.
Rik <octave@nomad.inbox5.com>
parents:
10774
diff
changeset
|
697 |
12418
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
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diff
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|
698 ** The following functions are new in Octave 3.4: |
12723
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
699 accumdim erfcx nfields pqpnonneg uigetdir |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
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parents:
12713
diff
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|
700 bitpack fileread nth_element quadcc uigetfile |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
701 bitunpack fminbnd onCleanup randi uiputfile |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
702 blkmm fskipl pbaspect repelems uimenu |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
703 cbrt ifelse pie3 reset whitebg |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
704 curl ishermitian powerset rsf2csf |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
705 chop isindex ppder saveas |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
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|
706 daspect luupdate ppint strread |
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
parents:
12713
diff
changeset
|
707 divergence merge ppjumps textread |
11109
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
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|
708 |
12418
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
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|
709 ** Using the image function to view images with external programs such |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
710 as display, xv, and xloadimage is no longer supported. The |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
711 image_viewer function has also been removed. |
b914e8125f1b
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diff
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|
712 |
b914e8125f1b
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diff
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|
713 ** The behavior of struct assignments to non-struct values has been |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
714 changed. Previously, it was possible to overwrite an arbitrary |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
changeset
|
715 value: |
11109
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
716 |
12418
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
parents:
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diff
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|
717 a = 1; |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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changeset
|
718 a.x = 2; |
10873 | 719 |
12418
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
changeset
|
720 This is no longer possible unless a is an empty matrix or cell |
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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|
721 array. |
b914e8125f1b
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diff
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|
722 |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
723 ** The dlmread function has been extended to allow specifying a custom |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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12413
diff
changeset
|
724 value for empty fields. |
10829 | 725 |
12418
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
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|
726 ** The dlmread and dlmwrite functions have been modified to accept |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
727 file IDs (as returned by fopen) in addition to file names. |
11111 | 728 |
12418
b914e8125f1b
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|
729 ** Octave can now optimize away the interpreter overhead of an |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
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|
730 anonymous function handle, if the function simply calls another |
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
changeset
|
731 function or handle with some of its parameters bound to certain |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
732 values. Example: |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
Rik <octave@nomad.inbox5.com>
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diff
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|
733 |
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
changeset
|
734 f = @(x) sum (x, 1); |
10966 | 735 |
12418
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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diff
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|
736 When f is called, the call is forwarded to @sum with the constant 1 |
b914e8125f1b
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Rik <octave@nomad.inbox5.com>
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|
737 appended, and the anonymous function call does not occur on the |
b914e8125f1b
NEWS: Use indent of 2 spaces rather than occasional 3 spaces.
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diff
changeset
|
738 call stack. |
10829 | 739 |
12424 | 740 ** For compatibility with Matlab, mu2lin (x) is now equivalent to |
741 mu2lin (x, 0). | |
742 | |
743 ** The new function `history_control' may be used to control the way | |
744 command lines are added to the history list when Octave is using | |
745 readline for command-line editing. For example | |
746 | |
747 history_control ("ignoredups") | |
748 | |
749 tells Octave to avoid adding duplicate lines to the history list. | |
750 | |
751 ** Octave now uses the gnulib library for improved portability and to | |
752 avoid bugs in operating system functions. | |
753 | |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
754 ** Deprecated functions. |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
755 |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
756 The following functions were deprecated in Octave 3.0 and have been |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
757 removed from Octave 3.4. |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
758 |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
759 beta_cdf geometric_pdf pascal_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
760 beta_inv geometric_rnd pascal_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
761 beta_pdf hypergeometric_cdf poisson_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
762 beta_rnd hypergeometric_inv poisson_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
763 binomial_cdf hypergeometric_pdf poisson_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
764 binomial_inv hypergeometric_rnd poisson_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
765 binomial_pdf intersection polyinteg |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
766 binomial_rnd is_bool setstr |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
767 chisquare_cdf is_complex struct_contains |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
768 chisquare_inv is_list struct_elements |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
769 chisquare_pdf is_matrix t_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
770 chisquare_rnd is_scalar t_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
771 clearplot is_square t_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
772 clg is_stream t_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
773 com2str is_struct uniform_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
774 exponential_cdf is_symmetric uniform_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
775 exponential_inv is_vector uniform_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
776 exponential_pdf isstr uniform_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
777 exponential_rnd lognormal_cdf weibcdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
778 f_cdf lognormal_inv weibinv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
779 f_inv lognormal_pdf weibpdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
780 f_pdf lognormal_rnd weibrnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
781 f_rnd meshdom weibull_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
782 gamma_cdf normal_cdf weibull_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
783 gamma_inv normal_inv weibull_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
784 gamma_pdf normal_pdf weibull_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
785 gamma_rnd normal_rnd wiener_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
786 geometric_cdf pascal_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
787 geometric_inv pascal_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
788 |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
789 The following functions were deprecated in Octave 3.2 and will |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
790 be removed from Octave 3.6 (or whatever version is the second major |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
791 release after 3.2): |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
792 |
11390
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
793 create_set spcholinv splu |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
794 dmult spcumprod spmax |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
795 iscommand spcumsum spmin |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
796 israwcommand spdet spprod |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
797 lchol spdiag spqr |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
798 loadimage spfind spsum |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
799 mark_as_command sphcat spsumsq |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
800 mark_as_rawcommand spinv spvcat |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
801 spatan2 spkron str2mat |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
802 spchol splchol unmark_command |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
803 spchol2inv split unmark_rawcommand |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
804 |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
805 The following functions have been deprecated in Octave 3.4 and will |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
806 be removed from Octave 3.8 (or whatever version is the second major |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
807 release after 3.4): |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
808 |
14354
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
809 autocor cellidx gammai is_global replot values |
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
810 autocov dispatch glpkmex krylovb saveimage |
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
811 betai fstat intwarning perror strerror |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
812 |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
813 Summary of important user-visible changes for version 3.2: |
5913 | 814 --------------------------------------------------------- |
2452 | 815 |
8737 | 816 ** Compatibility with Matlab graphics has been improved. |
6329 | 817 |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
818 The hggroup object and associated listener callback functions have |
8737 | 819 been added allowing the inclusion of group objects. Data sources |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
820 have been added to these group objects such that |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
821 |
3b53b25e2550
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David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
822 x = 0:0.1:10; |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
823 y = sin (x); |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
824 plot (x, y, "ydatasource", "y"); |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
825 for i = 1 : 100 |
3b53b25e2550
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David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
826 pause(0.1) |
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|
827 y = sin (x + 0.1 * i); |
14188 | 828 refreshdata (); |
8070
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829 endfor |
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|
830 |
8737 | 831 works as expected. This capability has be used to introduce |
9031
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Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
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diff
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|
832 stem-series, bar-series, etc., objects for better Matlab |
8737 | 833 compatibility. |
834 | |
835 ** New graphics functions: | |
836 | |
11576
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|
837 addlistener ezcontour gcbo refresh |
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|
838 addproperty ezcontourf ginput refreshdata |
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839 allchild ezmesh gtext specular |
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|
840 available_graphics_toolkits ezmeshc intwarning surfl |
8ac9687dbe9f
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|
841 graphics_toolkit ezplot ishghandle trisurf |
8ac9687dbe9f
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842 cla ezplot3 isocolors waitforbuttonpress |
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|
843 clabel ezpolar isonormals |
8ac9687dbe9f
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|
844 comet ezsurf isosurface |
8ac9687dbe9f
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|
845 dellistener findall linkprop |
8ac9687dbe9f
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|
846 diffuse gcbf plotmatrix |
8070
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|
847 |
8737 | 848 ** New experimental OpenGL/FLTK based plotting system. |
849 | |
850 An experimental plotting system based on OpenGL and the FLTK | |
11576
8ac9687dbe9f
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|
851 toolkit is now part of Octave. This graphics toolkit is disabled by |
8737 | 852 default. You can switch to using it with the command |
8070
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|
853 |
11576
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|
854 graphics_toolkit ("fltk") |
8070
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|
855 |
3b53b25e2550
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|
856 for all future figures or for a particular figure with the command |
3b53b25e2550
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|
857 |
11576
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|
858 graphics_toolkit (h, "fltk") |
8070
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|
859 |
11139 | 860 where "h" is a valid figure handle. |
8070
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|
861 |
8737 | 862 ** Functions providing direct access to gnuplot have been removed. |
863 | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
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changeset
|
864 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
86dae6e5b83c
Initial update of NEWS for 3.2 release
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|
865 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
8737 | 866 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
867 removed from Octave. These function were incompatible with the | |
868 high level graphics handle code. | |
6329 | 869 |
8885 | 870 ** The Control, Finance and Quaternion functions have been removed. |
871 | |
872 These functions are now available as separate packages from | |
873 | |
874 http://octave.sourceforge.net/packages.html | |
875 | |
876 and can be reinstalled using the Octave package manager (see | |
877 the pkg function). | |
878 | |
879 ** Specific sparse matrix functions removed. | |
880 | |
881 The following functions, which handled only sparse matrices have | |
882 been removed. Instead of calling these functions directly, you | |
883 should use the corresponding function without the "sp" prefix. | |
8737 | 884 |
8885 | 885 spatan2 spcumsum spkron spprod |
886 spchol spdet splchol spqr | |
887 spchol2inv spdiag splu spsum | |
888 spcholinv spfind spmax spsumsqk | |
889 spcumprod spinv spmin | |
890 | |
891 ** Improvements to the debugger. | |
892 | |
893 The interactive debugging features have been improved. Stopping | |
894 on statements with dbstop should work correctly now. Stepping | |
895 into and over functions, and stepping one statement at a time | |
896 (with dbstep) now works. Moving up and down the call stack with | |
897 dbup and dbdown now works. The dbstack function is now available | |
898 to print the current function call stack. The new dbquit function | |
899 is available to exit the debugging mode. | |
900 | |
901 ** Improved traceback error messages. | |
902 | |
903 Traceback error messages are much more concise and easier to | |
904 understand. They now display information about the function call | |
905 stack instead of the stack of all statements that were active at | |
906 the point of the error. | |
8014
44d206ae68c9
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John W. Eaton <jwe@octave.org>
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diff
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|
907 |
8737 | 908 ** Object Oriented Programming. |
8405
d79dfbff2f9d
document new norm features in NEWS
Jaroslav Hajek <highegg@gmail.com>
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8396
diff
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|
909 |
8737 | 910 Octave now includes OOP features and the user can create their own |
911 class objects and overloaded functions and operators. For | |
912 example, all methods of a class called "myclass" will be found in | |
913 a directory "@myclass" on the users path. The class specific | |
914 versions of functions and operators take precedence over the | |
915 generic versions of these functions. | |
916 | |
917 New functions related to OOP include | |
7189 | 918 |
8737 | 919 class inferiorto isobject loadobj methods superiorto |
920 | |
921 See the Octave manual for more details. | |
7038 | 922 |
8747 | 923 ** Parsing of Command-style Functions. |
924 | |
925 Octave now parses command-style functions without needing to first | |
926 declare them with "mark_as_command". The rules for recognizing a | |
927 command-style function calls are | |
928 | |
929 * A command must appear as the first word in a statement, | |
930 followed by a space. | |
931 | |
932 * The first character after the space must not be '=' or '(' | |
933 | |
934 * The next token after the space must not look like a binary | |
935 operator. | |
936 | |
937 These rules should be mostly compatible with the way Matlab parses | |
938 command-style function calls and allow users to define commands in | |
939 .m files without having to mark them as commands. | |
940 | |
941 Note that previous versions of Octave allowed expressions like | |
942 | |
943 x = load -text foo.dat | |
944 | |
945 but an expression like this will now generate a parse error. In | |
946 order to assign the value returned by a function to a variable, | |
947 you must use the normal function call syntax: | |
948 | |
949 x = load ("-text", "foo.dat"); | |
950 | |
8737 | 951 ** Block comments. |
952 | |
8747 | 953 Commented code can be between matching "#{" and "#}" or "%{" and |
954 "%}" markers, even if the commented code spans several line. This | |
955 allows blocks code to be commented, without needing to comment | |
956 each line. For example, | |
5814 | 957 |
8747 | 958 function [s, t] = func (x, y) |
959 s = 2 * x; | |
960 #{ | |
961 s *= y; | |
962 t = y + x; | |
963 #} | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
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diff
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|
964 endfunction |
5814 | 965 |
8747 | 966 the lines "s *= y;" and "t = y + x" will not be executed. |
8737 | 967 |
12400
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diff
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|
968 ** If any subfunction in a file ends with "end" or "endfunction", then |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
969 they all must end that way. Previously, Octave accepted |
5252f12537f8
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|
970 |
5252f12537f8
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|
971 function main () |
5252f12537f8
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|
972 ... |
5252f12537f8
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diff
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|
973 # no endfunction here. |
5252f12537f8
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|
974 function sub () |
5252f12537f8
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|
975 ... |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
976 endfunction |
5252f12537f8
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diff
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|
977 |
5252f12537f8
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diff
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|
978 but this is no longer allowed. |
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diff
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|
979 |
8737 | 980 ** Special treatment in the parser of expressions like "a' * b". |
2452 | 981 |
8737 | 982 In these cases the transpose is no longer explicitly formed and |
983 BLAS libraries are called with the transpose flagged, | |
984 significantly improving performance for these kinds of | |
985 operations. | |
8417
654bcfb937bf
Add the eigs and svds functions
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diff
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|
986 |
8737 | 987 ** Single Precision data type. |
2452 | 988 |
8737 | 989 Octave now includes a single precision data type. Single |
990 precision variables can be created with the "single" command, or | |
9034
52515efc50c0
Documentation cleanup on NEWS file
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parents:
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diff
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|
991 from functions like ones, eye, etc. For example, |
5995 | 992 |
8737 | 993 single (1) |
994 ones (2, 2, "single") | |
995 zeros (2, 2, "single") | |
996 eye (2, 2, "single") | |
997 Inf (2, 2, "single") | |
998 NaN (2, 2, "single") | |
999 NA (2, 2, "single") | |
7279 | 1000 |
8737 | 1001 all create single precision variables. For compatibility with |
1002 Matlab, mixed double/single precision operators and functions | |
1003 return single precision types. | |
1004 | |
1005 As a consequence of this addition to Octave the internal | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
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|
1006 representation of the double precision NA value has changed, and |
86dae6e5b83c
Initial update of NEWS for 3.2 release
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|
1007 so users that make use of data generated by Octave with R or |
86dae6e5b83c
Initial update of NEWS for 3.2 release
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diff
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|
1008 visa-versa are warned that compatibility might not be assured. |
7279 | 1009 |
8737 | 1010 ** Improved array indexing. |
1011 | |
1012 The underlying code used for indexing of arrays has been | |
9034
52515efc50c0
Documentation cleanup on NEWS file
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diff
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|
1013 completely rewritten and indexing is now significantly faster. |
8737 | 1014 |
8755 | 1015 ** Improved memory management. |
1016 | |
1017 Octave will now attempt to share data in some cases where previously | |
1018 a copy would be made, such as certain array slicing operations or | |
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
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parents:
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diff
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|
1019 conversions between cells, structs and cs-lists. This usually reduces |
8755 | 1020 both time and memory consumption. |
9128 | 1021 Also, Octave will now attempt to detect and optimize usage of a vector |
1022 as a stack, when elements are being repeatedly inserted at/removed from | |
1023 the end of the vector. | |
8755 | 1024 |
8738 | 1025 ** Improved performance for reduction operations. |
1026 | |
8755 | 1027 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
1028 max and min functions has been significantly improved. | |
8738 | 1029 |
9006 | 1030 ** Sorting and searching. |
1031 | |
1032 The performance of sort has been improved, especially when sorting | |
10453 | 1033 indices are requested. An efficient built-in issorted |
1034 implementation was added. The sortrows function now uses a more | |
12702
013cd94d8d7f
doc: Spelling fixes for various documentation files
John Bradshaw <john@johnbradshaw.org>
parents:
12698
diff
changeset
|
1035 efficient algorithm, especially in the homogeneous case. The lookup |
10453 | 1036 function is now a built-in function performing a binary search, |
1037 optimized for long runs of close elements. Lookup also works with | |
1038 cell arrays of strings. | |
9006 | 1039 |
1040 ** Range arithmetics | |
1041 | |
10453 | 1042 For some operations on ranges, Octave will attempt to keep the |
1043 result as a range. These include negation, adding a scalar, | |
14093
050bc580cb60
doc: Various docstring improvements before 3.6.0 release.
Rik <octave@nomad.inbox5.com>
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14082
diff
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|
1044 subtracting a scalar, and multiplying by a scalar. Ranges with zero |
10453 | 1045 increment are allowed and can be constructed using the built-in |
1046 function `ones'. | |
9006 | 1047 |
1048 ** Various performance improvements. | |
1049 | |
10453 | 1050 Performance of a number of other built-in operations and functions |
1051 was improved, including: | |
9006 | 1052 |
1053 * logical operations | |
1054 * comparison operators | |
1055 * element-wise power | |
1056 * accumarray | |
1057 * cellfun | |
1058 * isnan | |
1059 * isinf | |
1060 * isfinite | |
1061 * nchoosek | |
1062 * repmat | |
1063 * strcmp | |
1064 | |
8737 | 1065 ** 64-bit integer arithmetic. |
1066 | |
1067 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
1068 supported, with saturation semantics like the other integer types. | |
1069 Performance of most integer arithmetic operations has been | |
1070 improved by using integer arithmetic directly. Previously, Octave | |
1071 performed integer math with saturation semantics by converting the | |
1072 operands to double precision, performing the operation, and then | |
1073 converting the result back to an integer value, truncating if | |
1074 necessary. | |
1075 | |
8885 | 1076 ** Diagonal and permutation matrices. |
1077 | |
1078 The interpreter can now treat diagonal and permutation matrices as | |
1079 special objects that store only the non-zero elements, rather than | |
1080 general full matrices. Therefore, it is now possible to construct | |
1081 and use these matrices in linear algebra without suffering a | |
1082 performance penalty due to storing large numbers of zero elements. | |
1083 | |
1084 ** Improvements to fsolve. | |
1085 | |
1086 The fsolve function now accepts an option structure argument (see | |
1087 also the optimset function). The INFO values returned from fsolve | |
1088 have changed to be compatible with Matlab's fsolve function. | |
1089 Additionally, fsolve is now able to solve overdetermined systems, | |
1090 complex-differentiable complex systems, systems with a sparse | |
1091 jacobian and can work in single precision if given single precision | |
9031
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diff
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|
1092 inputs. It can also be called recursively. |
8885 | 1093 |
8737 | 1094 ** Improvements to the norm function. |
1095 | |
1096 The norm function is now able to compute row or column norms of a | |
1097 matrix in a single call, as well as general matrix p-norms. | |
1098 | |
1099 ** New functions for computing some eigenvalues or singular values. | |
1100 | |
1101 The eigs and svds functions have been included in Octave. These | |
1102 functions require the ARPACK library (now distributed under a | |
1103 GPL-compatible license). | |
1104 | |
1105 ** New QR and Cholesky factorization updating functions. | |
8370
34960ba08a81
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8292
diff
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|
1106 |
8737 | 1107 choldelete cholshift qrdelete qrshift |
1108 cholinsert cholupdate qrinsert qrupdate | |
1109 | |
1110 ** New quadrature functions. | |
1111 | |
1112 dblquad quadgk quadv triplequad | |
1113 | |
8885 | 1114 ** New functions for reading and writing images. |
1115 | |
1116 The imwrite and imread functions have been included in Octave. | |
1117 These functions require the GraphicsMagick library. The new | |
1118 function imfinfo provides information about an image file (size, | |
1119 type, colors, etc.) | |
1120 | |
9215
1500d0197484
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diff
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|
1121 ** The input_event_hook function has been replaced by the pair of |
1500d0197484
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9128
diff
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|
1122 functions add_input_event_hook and remove_input_event_hook so that |
1500d0197484
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diff
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|
1123 more than one hook function may be installed at a time. |
1500d0197484
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|
1124 |
8737 | 1125 ** Other miscellaneous new functions. |
8370
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|
1126 |
8932
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Add the 'histc' function
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diff
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|
1127 addtodate hypot reallog |
2d0f8692a82e
Add the 'histc' function
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8888
diff
changeset
|
1128 bicgstab idivide realpow |
9006 | 1129 cellslices info realsqrt |
1130 cgs interp1q rectint | |
1131 command_line_path isdebugmode regexptranslate | |
1132 contrast isfloat restoredefaultpath | |
1133 convn isstrprop roundb | |
1134 cummin log1p rundemos | |
1135 cummax lsqnonneg runlength | |
1136 datetick matlabroot saveobj | |
1137 display namelengthmax spaugment | |
1138 expm1 nargoutchk strchr | |
1139 filemarker pathdef strvcat | |
1140 fstat perl subspace | |
1141 full prctile symvar | |
1142 fzero quantile treelayout | |
1143 genvarname re_read_readline_init_file validatestring | |
1144 histc | |
8370
34960ba08a81
document more new features in the NEWS file
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8292
diff
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|
1145 |
8885 | 1146 ** Changes to strcat. |
1147 | |
1148 The strcat function is now compatible with Matlab's strcat | |
1149 function, which removes trailing whitespace when concatenating | |
1150 character strings. For example | |
1151 | |
1152 strcat ('foo ', 'bar') | |
1153 ==> 'foobar' | |
1154 | |
1155 The new function cstrcat provides the previous behavior of | |
1156 Octave's strcat. | |
1157 | |
1158 ** Improvements to the help functions. | |
1159 | |
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|
1160 The help system has been mostly re-implemented in .m files to make |
8885 | 1161 it easier to modify. Performance of the lookfor function has been |
1162 greatly improved by caching the help text from all functions that | |
1163 are distributed with Octave. The pkg function has been modified | |
1164 to generate cache files for external packages when they are | |
1165 installed. | |
1166 | |
8888
0c7b0049c023
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diff
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|
1167 ** Deprecated functions. |
0c7b0049c023
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1168 |
0c7b0049c023
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diff
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|
1169 The following functions were deprecated in Octave 3.0 and will be |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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11111
diff
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1170 removed from Octave 3.4 (or whatever version is the second major |
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1171 release after 3.0): |
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1172 |
11112
8ea4cf59c41b
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1173 beta_cdf geometric_pdf pascal_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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1174 beta_inv geometric_rnd pascal_rnd |
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1175 beta_pdf hypergeometric_cdf poisson_cdf |
8ea4cf59c41b
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John W. Eaton <jwe@octave.org>
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1176 beta_rnd hypergeometric_inv poisson_inv |
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1177 binomial_cdf hypergeometric_pdf poisson_pdf |
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1178 binomial_inv hypergeometric_rnd poisson_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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1179 binomial_pdf intersection polyinteg |
8ea4cf59c41b
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1180 binomial_rnd is_bool setstr |
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1181 chisquare_cdf is_complex struct_contains |
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1182 chisquare_inv is_list struct_elements |
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1183 chisquare_pdf is_matrix t_cdf |
8ea4cf59c41b
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parents:
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1184 chisquare_rnd is_scalar t_inv |
8ea4cf59c41b
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parents:
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1185 clearplot is_square t_pdf |
8ea4cf59c41b
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parents:
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1186 clg is_stream t_rnd |
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parents:
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1187 com2str is_struct uniform_cdf |
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parents:
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1188 exponential_cdf is_symmetric uniform_inv |
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1189 exponential_inv is_vector uniform_pdf |
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1190 exponential_pdf isstr uniform_rnd |
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1191 exponential_rnd lognormal_cdf weibcdf |
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1192 f_cdf lognormal_inv weibinv |
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1193 f_inv lognormal_pdf weibpdf |
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1194 f_pdf lognormal_rnd weibrnd |
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1195 f_rnd meshdom weibull_cdf |
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1196 gamma_cdf normal_cdf weibull_inv |
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1197 gamma_inv normal_inv weibull_pdf |
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1198 gamma_pdf normal_pdf weibull_rnd |
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1199 gamma_rnd normal_rnd wiener_rnd |
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1200 geometric_cdf pascal_cdf |
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1201 geometric_inv pascal_inv |
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1202 |
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1203 The following functions are now deprecated in Octave 3.2 and will |
11112
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1204 be removed from Octave 3.6 (or whatever version is the second major |
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1205 release after 3.2): |
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1206 |
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1207 create_set spcholinv spmax |
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1208 dmult spcumprod spmin |
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1209 iscommand spcumsum spprod |
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1210 israwcommand spdet spqr |
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1211 lchol spdiag spsum |
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1212 loadimage spfind spsumsq |
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1213 mark_as_command spinv str2mat |
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1214 mark_as_rawcommand spkron unmark_command |
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1215 spatan2 splchol unmark_rawcommand |
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1216 spchol split |
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1217 spchol2inv splu |
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1218 |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
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|
1219 See NEWS.3 for old news. |