# How to make histogram values be sum of the values of each bin?

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Amit Ifrach am 24 Aug. 2021
לק"י
Hi guys,
I have 2 vectors of area values that I want to put on a histogram. I want to make it a semilog (logarithmic Y axis), but want the histogram values to reffer the total area of incidents of each bin, instead of the number of incidents in it.
Histogram regular command of y=histogram(x, etc..) gives only the plot, and I couldn't see in the histogram info page the form of presentation I look for.
Is there any short way to do so? if not, which command and stratagies would you suggest to get the goal?
the code I used so far to plot the hists:
edges=[0 0:10000:500000 600000];
figure(1)
aCD3tothist=histogram(aCD3tot, edges, 'Normalization','probability', 'FaceColor', 'r');
set(gca,'YScale','log')
title('aCD3 tot')
xlabel('area (nm^2)')
ylabel('perc.')
hold on
aCD45tothist=histogram(aCD45tot, edges, 'Normalization','probability', 'FaceColor', 'b');
hold off
I tried to bin the original data, and managed to do so:
figure(10)
[aCD3tothstcnts,edges] = histcounts(aCD3tot,edges)
bar(aCD3tothstcnts, 'FaceColor', 'r')
hold on
set(gca,'YScale','log')
title('aCD45 tot')
xlabel('area (nm^2)')
ylabel('perc.')
[aCD45tothstcnts,edges] = histcounts(aCD45tot,edges)
bar(aCD45tothstcnts, 'FaceColor', 'b')
hold off
But again, the histcounts command gives the number of incidents that fall to each bin.
I can't seem to have a way to know the avarage area of each bin (and then jsut simply muliply it in the number of incidents) or the area of each incident in each bin to sum it up somehow.
I hope it was clear enough. thank you very much!
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