Error bars on grouped bar plots

Hi, I have this data:

PPdata = [960.6 960.3 960.4; 960.5 960.7 960.7];
PPerr = [0.4 0.4 0.5; 0.1 0.1 0.1];
PPx=categorical({'\it CL','\it DM'});

And I have to create a bar plot with error bars, I am using this code and it works for creating the bar plot

figure
bar(PPx,PPdata)
hold on
title('Peak position by region')
ylim([960.2 961.2]);
legend({'Cervical','Cuspal','Intercuspal'},'Location','southoutside')

But when I want to add the error bars (PPerr = [0.4 0.4 0.5; 0.1 0.1 0.1]), using:

errorbar(PPx,PPdata,PPerr);

this happens:

Error using errorbar>checkSingleInput (line 270)

XData must be the same size as YData.

And when I use:

errorbar(PPdata,PPerr);

This is the plot that appears:

What can I do?

Answer 1

[Star Strider]

Try this:

PPdata = [960.6 960.3 960.4; 960.5 960.7 960.7];
PPerr = [0.4 0.4 0.5; 0.1 0.1 0.1];
% PPx=categorical({'\it CL','\it DM'});

figure
hBar = bar(PPdata);
hBar(1).XData
hold on
for k1 = 1:size(PPdata,2)
    ctr(k1,:) = bsxfun(@plus, hBar(k1).XData, hBar(k1).XOffset');   % Note: ‘XOffset’ Is An Undocumented Feature, This Selects The ‘bar’ Centres
    ydt(k1,:) = hBar(k1).YData;                                     % Individual Bar Heights
end
hold on
errorbar(ctr, ydt, PPerr.', '.r')
PPx=categorical({'\it CL','\it DM'});
set(gca, 'XTickLabel', PPx)

title('Peak position by region')
ylim([960.2 961.2]);
legend({'Cervical','Cuspal','Intercuspal'},'Location','southoutside')

producing:

[Juliana Fernandez]

Hey! Thank you very much! It is just what I was looking for.

[Star Strider]

As always, my pleasure!