How to get the number of samples of each bar in histogram?

Dear all,

I have a mxn matrix where has n samples and each of them have m variables. I use hist(x, 20) to build histograms on each of the n samples.

Now I want to find how many variables that each bar in a histogram contains. What command should I used to achieve this automatically?

Thank you very much for your help.

Best wishes

Long

Answer 1

[Wayne King]

Use the output arguments

   x = randn(1e3,1);
   N = hist(x,20);

N gives you a vector of counts (frequencies) in each bin. If you want the bin centers as well.

     [N,bincentr] = hist(x,20);