How can I find the percentage of the overlap of two histograms in Matlab?

I try to plot two histograms and I need to know quantitavely what is the area and percentage of overlap of these two histograms.

[Image Analyst]

Do the bins cover the same ranges? Like they're both 5 units wide and have edges in the same locations?

[Filippo]

Assuming they do cover the same ranges... can anyone answer this question? I'm looking too!

Answer 1

[Image Analyst]

I'd put each histogram into one row and take the min and the max.

bothHistograms = [hist1; hist2];
minCounts = min(bothHistograms, [], 1);
maxCounts = max(bothHistograms, [], 1);

Then get the ratio of the min value for each bin to the max value for each bin:

ratios = minCounts ./ maxCounts;

If you want the average percentage coverage over all bins, take the mean over all bins:

meanPercentage = mean(ratios);