I want to label each bar within a cluster in a clustered bar graph, and I want each cluster to be a different color

I want to label each bar within a cluster 1-4, and I want each cluster of 1-4 to be a different color. I tried to indicate what I want on the image above. How would I go about doing this? Here is my code to get the above plot:

y=[0.68542594 0.5996976 0.52299593 0.92475461;0.1953691 1.56721222 0.6094734 0.2874436;1.4807764 0.0617133 1.2229648 0.0401016;0.3755536 0.56827556 0.91982125 0.86911084]

errhigh=[0.02208523 0.01877634 0.02256727 0.02603571;0.01781 0.047562 0.0304737 0.0343356;0.0464779 0.0308567 0.0178003 0.0173645;0.012677467 0.03515293 0.08112061 0.07929142]

b=bar(y,'grouped','b')

hold on

[ngroups,nbars] = size(y)

x = nan(nbars, ngroups);

for i = 1:nbars

x(i,:) = b(i).XEndPoints;

end

errorbar(x',y,errhigh,'k','linestyle','none');

hold off

Answer 1

[Voss]

y=[0.68542594 0.5996976 0.52299593 0.92475461;0.1953691 1.56721222 0.6094734 0.2874436;1.4807764 0.0617133 1.2229648 0.0401016;0.3755536 0.56827556 0.91982125 0.86911084];
errhigh=[0.02208523 0.01877634 0.02256727 0.02603571;0.01781 0.047562 0.0304737 0.0343356;0.0464779 0.0308567 0.0178003 0.0173645;0.012677467 0.03515293 0.08112061 0.07929142];

colors = [ ...
    1 1 0.4; ... % yellow
    1 0 0; ...   % red
    0 0.6 0; ... % green
    1 0 1];      % magenta
b=bar(y,'FaceColor','flat','CData',colors);

hold on
[ngroups,nbars] = size(y);
x = nan(nbars, ngroups);
for i = 1:nbars
    x(i,:) = b(i).XEndPoints;
end
errorbar(x',y,errhigh,'k','linestyle','none');
hold off

set(gca(), ...
    'XTick',x(:), ...
    'XTickLabels',repmat(sprintfc('%d',1:nbars),1,ngroups));

[Claire Smith]

thank you!

[Voss]

You're welcome!