条形图x轴Matlab

LenaH 发表于 Dev

丽娜

我陷入了Matlab中的条形图问题。直到这里，我都得到了Matlab帮助和这个论坛的支持，但是在x轴上，仍然只有2个名字。我想在栏下显示“名称”，并在其中显示两个名称的“类别”。谢谢！

values = [4 10...
    11 2 3;...
    4 1...
    5 2 -10];
names = {'PreSplitTotalEON' 'PostSplitTotalEON'...
    'PreSplitPureEON' 'PostSplitPureEON' 'PostSplitUniper';...
    'PreSplitTotalRWE' 'PostSplitTotalRWE'...
    'PreSplitPureRWE' 'PostSplitPureRWE' 'PostSplitInnogy'};
categories = {'EON', 'RWE'};
b = bar(values,'FaceColor','flat');
xticklabels([names(1,:)';names(2,:)'])         
% This will set labels to be used for each tick of the x-axis
xticks(1:1:length([names(1,:)';names(2,:)']))
% This will set how many ticks you want on the x-axis. Here, there
% should be 48 ticks being generated. One for each piece of data you have.
xtickangle(90)
% This will rotate the label so that the labels will not overlap
% with one another. This is in degrees.
for k = 1:size(values,2) % for fancier colors.
    b(k).CData = k;
end

哈维尔·奥兰迪（Javier Orlandi）

默认方式是用来legend显示组中每个元素的名称。但是可以通过XOffset和XData属性访问每个栏的位置。在matlab Central中查看此答案。

因此，您可以使用类似：

ticksList = b(1).XData+arrayfun(@(x)x.XOffset, b)';
xticks(ticksList(:))
xticklabels([names(1,:)';names(2,:)'])

正确显示每个栏下方的名称。但是，我看不到如何在条形图下不重叠地显示每个条形图的名称和类别。您可以通过创建新轴将类别显示在顶部。添加类似的东西：

ax1 = gca;
ax2 = axes('Position', get(ax1, 'Position'),'Color', 'none');
set(ax2, 'XAxisLocation', 'top','YAxisLocation','Right');
set(ax2, 'XLim', get(ax1, 'XLim'),'YLim', get(ax1, 'YLim'));
xticks(b(1).XData)
xticklabels(categories)

即完整的代码现在是：

clear all
close all

values = [4 1 11 2 3; 4 1 5 2 -10];
names = {'Pre split total EON' 'Post split total EON'...
    'Pre split pure EON' 'Post split pure EON' 'Post split Uniper';...
    'Pre split total RWE' 'Post split total RWE'...
    'Pre split pure RWE' 'Post split pure RWE' 'PostSplitInnogy'};
categories = {'EON','RWE'};
figure;
b = bar(values,'FaceColor','flat');
ticksList = b(1).XData+arrayfun(@(x)x.XOffset, b)';
xticks(ticksList(:))
xticklabels([names(1,:)';names(2,:)'])
xtickangle(90)
ax1 = gca;
ax2 = axes('Position', get(ax1, 'Position'),'Color', 'none');
set(ax2, 'XAxisLocation', 'top','YAxisLocation','Right');
set(ax2, 'XLim', get(ax1, 'XLim'),'YLim', get(ax1, 'YLim'));
set(ax2, 'YTick', []);
xticks(b(1).XData)
xticklabels(categories)
for k = 1:size(values,2) % for fancier colors.
    b(k).CData = k;
end