How to make error bars on double bar graph?

Hi i am trying to get error bars on my double bar graphs but it wont show. I am using MATLAB R2020a. Please help!

y=[6 8;8 10; 9 99;19 68;20 52;];
x = [categorical({'Control' ,   'Target',  'NT1', 'NT2',   'NT3'})];
bar(x,y)

figure;
    hold on    
    b= bar(x, y);
    ax = gca;
ax.FontSize = 14; 
xlabel("Sample", 'FontSize', 20);
ylabel("Peaks", 'FontSize', 20);
title("Specificity", 'FontSize', 26);
    error_data=[];
error_data= [1 2; 1 3; 8  3; 4  2; 2  2;];
errorbar(x, y, error_data,'k','linestyle','none');

    errorbar(x, y, error_data,'k','linestyle','none');
    hold off

Answer 1

[Star Strider]

I have no idea when XEndPoints and YEndPoints was introduced, however it was relatively recently (within the last few years).

This works in R2022a —

y=[6 8;8 10; 9 99;19 68;20 52;];
error_data= [1 2; 1 3; 8  3; 4  2; 2  2;];
x = [categorical({'Control' ,   'Target',  'NT1', 'NT2',   'NT3'})];

figure
hold on    
hb = bar(x, y);
for k = 1:numel(hb)
    errorbar(hb(k).XEndPoints, hb(k).YEndPoints, error_data(:,k), '.k', 'MarkerSize',0.1)
end
ax = gca;
ax.FontSize = 14; 
xlabel("Sample", 'FontSize', 20);
ylabel("Peaks", 'FontSize', 20);
title("Specificity", 'FontSize', 26);

If this doesn’t work in your version, go here for an alternative approach that probably will. (It fails in R2022a since XOffset may no longer exist, so I cannot illustrate it here.)

.

[Chelsie Boodoo]

Thanks it worked!!!!

[Star Strider]

As always, my pleasure!