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1 ## Copyright (C) 1999 Daniel Heiserer |
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2 ## |
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3 ## This program is free software. It is distributed in the hope that it |
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4 ## will be useful, but WITHOUT ANY WARRANTY; without even the implied |
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5 ## warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
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6 ## the GNU General Public License for more details. |
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7 ## |
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8 ## You should have received a copy of the GNU General Public License |
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9 ## along with this file; see the file COPYING. If not, write to the |
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10 ## Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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11 ## 02111-1307, USA. |
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12 |
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13 ## BAR create Bar graph |
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14 ## USAGE: |
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15 ## BAR(X) creates a bar plot using the colums of the m x n Matrix X |
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16 ## as columns of the bars. The rows of X will |
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17 ## |
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18 ## BAR(...,'stack') creates a vertical bar chart. |
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19 ## BAR(...,'group') creates a horizontal bar chart. |
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20 ## |
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21 ## |
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22 ## e.g.: bar(rand(3,5),'stack') |
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23 ## |
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24 ## See also FILL, PATCH. |
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25 |
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26 ## REMARK: fakes gnuplots unability of plotting shaded patches |
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27 ## AUTHOR: Daniel Heiserer <Daniel.heiserer@physik.tu-muenchen.de> |
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28 ## 2001-01-16 Paul Kienzle |
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29 ## * reformatting, unwind protect, compatible style names |
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30 |
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31 function dhbar(X,btype) |
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32 |
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33 if nargin<2 |
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34 btype='stack'; |
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35 end |
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36 if isstr(btype)~=1 |
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37 error('second argument has to be a string!!!!'); |
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38 end |
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39 |
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40 barwidth=0.8; |
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41 bw2=barwidth/2; |
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42 |
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43 ## uups. I did it the wrong way, this helps: |
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44 X=X'; |
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45 |
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46 held = ishold; |
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47 unwind_protect |
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48 |
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49 if min(size(X))==1 |
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50 ## oh nice only single bars |
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51 for jj=1:length(X) |
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52 patch(jj + [-bw2, -bw2, bw2, bw2], [ 0, X(jj), X(jj), 0 ], 'r'); |
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53 hold on |
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54 endfor |
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55 else |
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56 if btype=='group' |
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57 ## we have to change the barwidth: |
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58 barwidth=0.8; |
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59 bw=barwidth; |
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60 for jj=1:size(X,1) |
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61 for kk=1:size(X,2) |
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62 patch(jj + ([-1,-1,0,0]+kk-size(X,2)/2)./size(X,2)*bw,... |
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63 [ 0, X(jj,kk), X(jj,kk), 0 ], num2str(kk)); |
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64 hold on |
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65 endfor |
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66 endfor |
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67 elseif btype=='stack' |
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68 for jj=1:size(X,1) |
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69 for kk=1:size(X,2) |
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70 patch(jj + [-bw2, -bw2, bw2, bw2],... |
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71 sum(X(jj,1:kk-1)) + [0,X(jj,kk),X(jj,kk),0], num2str(kk)); |
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72 hold on |
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73 endfor |
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74 endfor |
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75 else |
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76 error("patch: unknown type %s; use 'stack' or 'group'", btype); |
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77 endif |
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78 endif |
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79 |
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80 unwind_protect_cleanup |
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81 if (!held) hold off; end; |
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82 end_unwind_protect |
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83 |
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84 endfunction |
