Error bars on categorical bar plot
19 次查看(过去 30 天)
显示 更早的评论
Hi,
I'm trying to plot error bars on my categorical plot, but the second error bar doesn't align with the second bar. Can someone please help me with this.
The version of MATLAB I'm using is R2019b.
My code is as follows:
%Define the colors' RGB values in a matrix
col(1,:) = [1 0 0]; % -- red
col(2,:) = [0, 0.4470, 0.7410]; % -- blue
x = categorical({'Control', 'Folic Acid'}); %xaxis
x = reordercats(x,{'Control', 'Folic Acid'}); %specified order
y = [1.8493, 1.8]; %yaxis
SEM=[0.0168, 0.0170];
figure; bar(x(1), y(1), 0.5, 'FaceColor',col(1,:)); hold on;
errorbar(y(1),SEM(1),'k','linestyle','none'); hold on;
bar(x(2), y(2), 0.5, 'FaceColor',col(2,:)); hold on;
errorbar(y(2),SEM(2),'b','linestyle','none'); hold off;
title('Brain Weight')
ylabel('Weight (g)')
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/306275/image.jpeg)
0 个评论
采纳的回答
the cyclist
2020-5-30
编辑:the cyclist
2020-5-30
Call errorbar with this syntax instead:
errorbar(x(1),y(1),SEM(1),'k','linestyle','none');
errorbar(x(2),y(2),SEM(2),'b','linestyle','none');
FYI, your code can be simplified to the following:
%Define the colors' RGB values in a matrix
col(1,:) = [1 0 0]; % -- red
col(2,:) = [0, 0.4470, 0.7410]; % -- blue
x = categorical({'Control', 'Folic Acid'}); %xaxis
x = reordercats(x,{'Control', 'Folic Acid'}); %specified order
y = [1.8493, 1.8]; %yaxis
SEM=[0.0168, 0.0170];
figure
hold on
b = bar(x, y, 0.5, 'FaceColor',col(2,:));
b.FaceColor = 'flat';
b.CData= col;
errorbar(x,y,SEM,'k','linestyle','none');
title('Brain Weight')
ylabel('Weight (g)')
hold off
You only need one call each for bar and errorbar, and the multiple calls to hold on are extraneous.
2 个评论
the cyclist
2020-5-30
Happy to help. You took the time to create a clear, well formatted forum question, so I think you are well on the way to learning more MATLAB!
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Distribution Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!