Matlab 条形图绘制以及添加误差棒改变条形图形状

淩亂°似流年 2023-07-17 15:52 7阅读 0赞

首先绘制条形图 主要采用matlab自带的bar命令

a\_live = \[0.9186, 0.9460, 0.9552, 0.9533\];  
a\_tid = \[0.6090, 0.6663, 0.7170, 0.7165\];  
a = \[a\_live; a\_tid\];  
bar(a, 'grouped')  
set(gca,'YLim', \[0.5,1\], 'XTickLabel',\{'LIVE', 'TID2013'\}, 'FontSize', 15);  
ylabel('SRC');  
set(gca, 'Ytick', \[0.5:0.05:1\], 'ygrid','on','GridLineStyle','-');  
legend('25','50','100','200', 'Location', 'EastOutside');  
legend('boxoff');

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEwODk1MjM_size_16_color_FFFFFF_t_70][]

采用errorbar命令添加误差棒，这里的误差是标准差。

e = \[0.0198, 0.0124, 0.0096, 0.0112; 0.0875, 0.0990, 0.1034, 0.0939\];  
hold on  
numgroups = size(a, 1);   
numbars = size(a, 2);   
groupwidth = min(0.8, numbars/(numbars+1.5));  
for i = 1:numbars  
      % Based on barweb.m by Bolu Ajiboye from MATLAB File Exchange  
      x = (1:numgroups) - groupwidth/2 + (2\*i-1) \* groupwidth / (2\*numbars);  % Aligning error bar with individual bar  
      errorbar(x, a(:,i), e(:,i), 'k', 'linestyle', 'none', 'lineWidth', 1);  
end

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEwODk1MjM_size_16_color_FFFFFF_t_70 1][]

最后采用一个toolbox： applyhatch\_pluscolor\_bundle来改变条形图的形状，方便黑白打印的时候显示

\[im\_hatch,colorlist\] = applyhatch\_pluscolor(1,'\\+x.', 1, \[1,0,1,0\] , \[\], \[\], 1.5, 2); % add different patterns

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEwODk1MjM_size_16_color_FFFFFF_t_70 2][]  
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原文链接：https://blog.csdn.net/raul678/article/details/50344755

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