Mercurial > octave-nkf
annotate scripts/testfun/demo.m @ 17281:bc924baa2c4e
doc: Add new @qcode macro for code samples which are quoted.
Macro handles options ("on") or properties ("position") more elegantly
than @code{"text"}.
* doc/interpreter/macros.texi: Add new @qcode macro.
* doc/interpreter/tips.txi: Add documentation about @qcode macro.
* doc/interpreter/basics.txi, doc/interpreter/container.txi,
doc/interpreter/emacs.txi, doc/interpreter/errors.txi,
doc/interpreter/eval.txi, doc/interpreter/expr.txi,
doc/interpreter/external.txi, doc/interpreter/func.txi,
doc/interpreter/grammar.txi, doc/interpreter/image.txi,
doc/interpreter/install.txi, doc/interpreter/interp.txi,
doc/interpreter/io.txi, doc/interpreter/matrix.txi,
doc/interpreter/numbers.txi, doc/interpreter/oop.txi,
doc/interpreter/package.txi, doc/interpreter/plot.txi,
doc/interpreter/quad.txi, doc/interpreter/sparse.txi,
doc/interpreter/strings.txi, doc/interpreter/system.txi,
doc/interpreter/vectorize.txi, libinterp/corefcn/balance.cc,
libinterp/corefcn/bitfcns.cc, libinterp/corefcn/cellfun.cc,
libinterp/corefcn/conv2.cc, libinterp/corefcn/data.cc,
libinterp/corefcn/debug.cc, libinterp/corefcn/defaults.cc,
libinterp/corefcn/dirfns.cc, libinterp/corefcn/dlmread.cc,
libinterp/corefcn/error.cc, libinterp/corefcn/file-io.cc,
libinterp/corefcn/find.cc, libinterp/corefcn/gammainc.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/help.cc,
libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc,
libinterp/corefcn/load-path.cc, libinterp/corefcn/load-save.cc,
libinterp/corefcn/ls-oct-ascii.cc, libinterp/corefcn/lu.cc,
libinterp/corefcn/luinc.cc, libinterp/corefcn/matrix_type.cc,
libinterp/corefcn/oct-hist.cc, libinterp/corefcn/pager.cc,
libinterp/corefcn/pr-output.cc, libinterp/corefcn/pt-jit.cc,
libinterp/corefcn/qz.cc, libinterp/corefcn/rand.cc,
libinterp/corefcn/regexp.cc, libinterp/corefcn/schur.cc,
libinterp/corefcn/sighandlers.cc, libinterp/corefcn/sparse.cc,
libinterp/corefcn/spparms.cc, libinterp/corefcn/str2double.cc,
libinterp/corefcn/svd.cc, libinterp/corefcn/symtab.cc,
libinterp/corefcn/syscalls.cc, libinterp/corefcn/toplev.cc,
libinterp/corefcn/tril.cc, libinterp/corefcn/typecast.cc,
libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc,
libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/chol.cc,
libinterp/dldfcn/colamd.cc, libinterp/dldfcn/fftw.cc, libinterp/dldfcn/qr.cc,
libinterp/dldfcn/symbfact.cc, libinterp/octave-value/ov-base.cc,
libinterp/octave-value/ov-fcn-handle.cc,
libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-java.cc,
libinterp/octave-value/ov-range.cc, libinterp/octave-value/ov-struct.cc,
libinterp/octave-value/ov-usr-fcn.cc, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/pt-binop.cc, libinterp/parse-tree/pt-eval.cc,
libinterp/parse-tree/pt-mat.cc, scripts/@ftp/ftp.m,
scripts/deprecated/java_convert_matrix.m, scripts/deprecated/java_debug.m,
scripts/deprecated/java_unsigned_conversion.m, scripts/deprecated/shell_cmd.m,
scripts/general/dblquad.m, scripts/general/display.m,
scripts/general/genvarname.m, scripts/general/idivide.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/interpn.m, scripts/general/isa.m,
scripts/general/profexplore.m, scripts/general/profile.m,
scripts/general/quadgk.m, scripts/general/randi.m, scripts/general/structfun.m,
scripts/general/subsindex.m, scripts/general/triplequad.m,
scripts/geometry/griddata.m, scripts/geometry/griddata3.m,
scripts/geometry/griddatan.m, scripts/geometry/voronoi.m, scripts/help/help.m,
scripts/help/lookfor.m, scripts/image/cmpermute.m, scripts/image/colormap.m,
scripts/image/image.m, scripts/image/imagesc.m, scripts/image/imfinfo.m,
scripts/image/imformats.m, scripts/image/imread.m, scripts/image/imshow.m,
scripts/image/imwrite.m, scripts/image/ind2gray.m, scripts/image/lines.m,
scripts/image/rgb2ind.m, scripts/image/spinmap.m, scripts/io/dlmwrite.m,
scripts/io/strread.m, scripts/io/textread.m, scripts/io/textscan.m,
scripts/java/javaclasspath.m, scripts/java/usejava.m,
scripts/miscellaneous/bzip2.m, scripts/miscellaneous/computer.m,
scripts/miscellaneous/copyfile.m, scripts/miscellaneous/debug.m,
scripts/miscellaneous/dos.m, scripts/miscellaneous/edit.m,
scripts/miscellaneous/gzip.m, scripts/miscellaneous/license.m,
scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/movefile.m,
scripts/miscellaneous/parseparams.m, scripts/miscellaneous/unix.m,
scripts/optimization/fminbnd.m, scripts/optimization/fminsearch.m,
scripts/optimization/fminunc.m, scripts/optimization/fsolve.m,
scripts/optimization/fzero.m, scripts/optimization/glpk.m,
scripts/optimization/lsqnonneg.m, scripts/optimization/optimset.m,
scripts/optimization/pqpnonneg.m, scripts/pkg/pkg.m, scripts/plot/allchild.m,
scripts/plot/ancestor.m, scripts/plot/area.m, scripts/plot/axis.m,
scripts/plot/bar.m, scripts/plot/barh.m, scripts/plot/box.m,
scripts/plot/caxis.m, scripts/plot/cla.m, scripts/plot/clabel.m,
scripts/plot/clf.m, scripts/plot/close.m, scripts/plot/colorbar.m,
scripts/plot/daspect.m, scripts/plot/ezmesh.m, scripts/plot/ezmeshc.m,
scripts/plot/ezsurf.m, scripts/plot/ezsurfc.m, scripts/plot/findall.m,
scripts/plot/findobj.m, scripts/plot/gcbo.m, scripts/plot/gcf.m,
scripts/plot/gco.m, scripts/plot/grid.m, scripts/plot/guihandles.m,
scripts/plot/hdl2struct.m, scripts/plot/hidden.m, scripts/plot/hold.m,
scripts/plot/isonormals.m, scripts/plot/isosurface.m, scripts/plot/legend.m,
scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m,
scripts/plot/newplot.m, scripts/plot/orient.m, scripts/plot/pareto.m,
scripts/plot/patch.m, scripts/plot/pbaspect.m, scripts/plot/pcolor.m,
scripts/plot/plot.m, scripts/plot/print.m,
scripts/plot/private/__add_default_menu__.m, scripts/plot/quiver.m,
scripts/plot/quiver3.m, scripts/plot/refreshdata.m, scripts/plot/saveas.m,
scripts/plot/scatter.m, scripts/plot/scatter3.m, scripts/plot/shading.m,
scripts/plot/shrinkfaces.m, scripts/plot/slice.m, scripts/plot/stem.m,
scripts/plot/stem3.m, scripts/plot/struct2hdl.m, scripts/plot/subplot.m,
scripts/plot/surf.m, scripts/plot/surfc.m, scripts/plot/surfl.m,
scripts/plot/tetramesh.m, scripts/plot/uigetfile.m, scripts/plot/uimenu.m,
scripts/plot/uiputfile.m, scripts/plot/waterfall.m, scripts/plot/whitebg.m,
scripts/plot/xlim.m, scripts/plot/ylim.m, scripts/plot/zlim.m,
scripts/polynomial/conv.m, scripts/polynomial/polyout.m,
scripts/polynomial/splinefit.m, scripts/set/ismember.m, scripts/set/powerset.m,
scripts/set/setdiff.m, scripts/set/union.m, scripts/set/unique.m,
scripts/signal/detrend.m, scripts/signal/filter2.m, scripts/signal/freqz.m,
scripts/signal/periodogram.m, scripts/signal/spectral_adf.m,
scripts/signal/spectral_xdf.m, scripts/sparse/eigs.m, scripts/sparse/svds.m,
scripts/specfun/legendre.m, scripts/special-matrix/gallery.m,
scripts/statistics/base/mean.m, scripts/statistics/base/moment.m,
scripts/statistics/tests/cor_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test_2.m,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/statistics/tests/prop_test_2.m, scripts/statistics/tests/sign_test.m,
scripts/statistics/tests/t_test.m, scripts/statistics/tests/t_test_2.m,
scripts/statistics/tests/t_test_regression.m,
scripts/statistics/tests/u_test.m, scripts/statistics/tests/var_test.m,
scripts/statistics/tests/welch_test.m,
scripts/statistics/tests/wilcoxon_test.m, scripts/statistics/tests/z_test.m,
scripts/statistics/tests/z_test_2.m, scripts/strings/base2dec.m,
scripts/strings/index.m, scripts/strings/isstrprop.m,
scripts/strings/mat2str.m, scripts/strings/regexptranslate.m,
scripts/strings/rindex.m, scripts/strings/str2num.m, scripts/strings/strcat.m,
scripts/strings/strjust.m, scripts/strings/strmatch.m,
scripts/strings/validatestring.m, scripts/testfun/demo.m,
scripts/testfun/example.m, scripts/testfun/test.m, scripts/time/addtodate.m,
scripts/time/asctime.m, scripts/time/datestr.m, scripts/time/datetick.m,
scripts/time/weekday.m, scripts/ui/errordlg.m, scripts/ui/helpdlg.m,
scripts/ui/inputdlg.m, scripts/ui/listdlg.m, scripts/ui/msgbox.m,
scripts/ui/questdlg.m, scripts/ui/warndlg.m: Use new @qcode macro.
| author | Rik <rik@octave.org> |
|---|---|
| date | Mon, 19 Aug 2013 20:46:38 -0700 |
| parents | 333243133364 |
| children | d63878346099 |
| rev | line source |
|---|---|
|
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1 ## Copyright (C) 2000-2012 Paul Kienzle |
| 5589 | 2 ## |
| 7016 | 3 ## This file is part of Octave. |
| 5589 | 4 ## |
| 7016 | 5 ## Octave is free software; you can redistribute it and/or modify it |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 9 ## | |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 5589 | 14 ## |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 5589 | 18 |
| 19 ## -*- texinfo -*- | |
|
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20 ## @deftypefn {Command} {} demo @var{name} |
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21 ## @deftypefnx {Command} {} demo @var{name} @var{n} |
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22 ## @deftypefnx {Function File} {} demo ("@var{name}") |
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23 ## @deftypefnx {Function File} {} demo ("@var{name}", @var{n}) |
| 5589 | 24 ## |
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25 ## Run example code block @var{n} associated with the function @var{name}. |
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26 ## If @var{n} is not specified, all examples are run. |
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27 ## |
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28 ## Examples are stored in the script file, or in a file with the same |
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29 ## name but no extension located on Octave's load path. To keep examples |
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30 ## separate from regular script code, all lines are prefixed by @code{%!}. Each |
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31 ## example must also be introduced by the keyword @qcode{"demo"} flush left |
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32 ## to the prefix with no intervening spaces. The remainder of the example |
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33 ## can contain arbitrary Octave code. For example: |
| 5589 | 34 ## |
| 35 ## @example | |
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36 ## @group |
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37 ## %!demo |
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38 ## %! t = 0:0.01:2*pi; |
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39 ## %! x = sin (t); |
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40 ## %! plot (t, x); |
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41 ## %! %------------------------------------------------- |
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42 ## %! % the figure window shows one cycle of a sine wave |
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43 ## @end group |
| 5589 | 44 ## @end example |
| 45 ## | |
| 46 ## Note that the code is displayed before it is executed, so a simple | |
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47 ## comment at the end suffices for labeling what is being shown. It is |
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48 ## generally not necessary to use @code{disp} or @code{printf} within the demo. |
| 5589 | 49 ## |
| 50 ## Demos are run in a function environment with no access to external | |
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51 ## variables. This means that every demo must have separate initialization |
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52 ## code. Alternatively, all demos can be combined into a single large demo |
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53 ## with the code |
| 5589 | 54 ## |
| 55 ## @example | |
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56 ## %! input("Press <enter> to continue: ","s"); |
| 5589 | 57 ## @end example |
| 58 ## | |
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59 ## @noindent |
| 5589 | 60 ## between the sections, but this is discouraged. Other techniques |
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61 ## to avoid multiple initialization blocks include using multiple plots |
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62 ## with a new @code{figure} command between each plot, or using @code{subplot} |
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63 ## to put multiple plots in the same window. |
| 5589 | 64 ## |
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65 ## Also, because demo evaluates within a function context, you cannot |
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66 ## define new functions inside a demo. If you must have function blocks, |
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67 ## rather than just anonymous functions or inline functions, you will have to |
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68 ## use @code{eval (example ("function",n))} to see them. Because eval only |
| 5589 | 69 ## evaluates one line, or one statement if the statement crosses |
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70 ## multiple lines, you must wrap your demo in @qcode{"if 1 <demo stuff> endif"} |
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71 ## with the @qcode{"if"} on the same line as @qcode{"demo"}. For example: |
| 5589 | 72 ## |
| 73 ## @example | |
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74 ## @group |
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75 ## %!demo if 1 |
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76 ## %! function y=f(x) |
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77 ## %! y=x; |
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78 ## %! endfunction |
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79 ## %! f(3) |
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80 ## %! endif |
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81 ## @end group |
| 5589 | 82 ## @end example |
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83 ## |
| 5642 | 84 ## @seealso{test, example} |
| 5589 | 85 ## @end deftypefn |
| 86 | |
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87 ## FIXME: modify subplot so that gnuplot_has_multiplot == 0 causes it to |
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88 ## use the current figure window but pause if not plotting in the |
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89 ## first subplot. |
| 5589 | 90 |
| 6494 | 91 function demo (name, n) |
| 5589 | 92 |
| 93 if (nargin < 1 || nargin > 2) | |
| 6046 | 94 print_usage (); |
| 5589 | 95 endif |
| 96 | |
| 97 if (nargin < 2) | |
| 98 n = 0; | |
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99 elseif (ischar (n)) |
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100 n = str2double (n); |
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101 endif |
| 5589 | 102 |
| 6494 | 103 [code, idx] = test (name, "grabdemo"); |
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104 |
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105 if (idx == -1) |
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106 warning ("no function %s found", name); |
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107 return; |
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108 elseif (isempty (idx)) |
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109 warning ("no demo available for %s", name); |
| 5589 | 110 return; |
| 6494 | 111 elseif (n >= length (idx)) |
| 112 warning ("only %d demos available for %s", length (idx) - 1, name); | |
| 5589 | 113 return; |
| 114 endif | |
| 115 | |
| 116 if (n > 0) | |
| 117 doidx = n; | |
| 118 else | |
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119 doidx = 1:(length (idx) - 1); |
| 5589 | 120 endif |
| 6494 | 121 for i = 1:length (doidx) |
| 5589 | 122 ## Pause between demos |
| 123 if (i > 1) | |
| 6494 | 124 input ("Press <enter> to continue: ", "s"); |
| 5589 | 125 endif |
| 126 | |
| 127 ## Process each demo without failing | |
| 128 try | |
| 6494 | 129 block = code(idx(doidx(i)):idx(doidx(i)+1)-1); |
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130 ## Use an environment without variables |
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131 eval (["function __demo__()\n" block "\nendfunction"]); |
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132 ## Display the code that will be executed before executing it |
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133 printf ("%s example %d:%s\n\n", name, doidx(i), block); |
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134 __demo__; |
| 5589 | 135 catch |
| 136 ## Let the programmer know which demo failed. | |
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137 printf ("%s example %d: failed\n%s\n", name, doidx(i), lasterr ()); |
| 5589 | 138 end_try_catch |
| 139 clear __demo__; | |
| 140 endfor | |
| 141 | |
| 142 endfunction | |
| 143 | |
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144 |
| 5589 | 145 %!demo |
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146 %! t = 0:0.01:2*pi; |
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147 %! x = sin (t); |
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148 %! plot (t, x); |
| 5589 | 149 %! %------------------------------------------------- |
| 150 %! % the figure window shows one cycle of a sine wave | |
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151 |
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152 %!error demo () |
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153 %!error demo (1, 2, 3) |
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154 |