histogram with two sets of data
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Alexandre Williot
on 6 May 2015
Commented: Nicholas
on 28 Feb 2017
Hello, I want to make an histogram exactly like the image here. Have you an idea ?
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Accepted Answer
Star Strider
on 6 May 2015
Use the bar function with the 'grouped' option. The error bars and the comparison lines between the plotted bars are a bit more difficult, and the code the plot them depends on whether you are using R2014a or earlier, or R2014b or later.
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Elvira Ruiz
on 23 Oct 2016
I do not have enough words to express my gratitude. THANK YOU!
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Star Strider
on 25 Oct 2016
My pleasure.
That code was written for R2014a. HG2 graphics were introduced in R2014b.
Example code for R2014b (and later versions) for bar chart error bars is:
y = [212206000000 229040000000 39312320000; 119783500000 169247500000 128418300000 ; 211838000000 706581300000 85349300000];
hBar = bar(y);
set(gca,'XTickLabel', {'300 ','350 ','400 '})
legend('C','S','T', 'Location','N')
grid on
ylabel('N/m^{2}')
xlabel ('\mum')
colormap summer
for k1 = 1:size(hBar,2)
ctr(k1,:) = bsxfun(@plus, hBar(k1).XData, [hBar(k1).XOffset]'); % Centres Of Bar Groups
ydt(k1,:) = hBar(k1).YData; % Y-Data Of Bar Groups
end
hold on
for k1 = 1:size(hBar,2)
errorbar(ctr(k1,:), ydt(k1,:), ones(size(ydt(k1,:)))*0.1.*ydt(k1,:), '.r') % Plot 10% Error Bars
end
hold off
It’s been a while since I ran that, so I ran it just now on R2016b to check it. It works.
This also gives me the opportunity to include the R2014b code here. That should help other people who are looking for both versions.
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