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Asked: 2026-06-06T12:20:54+00:00

From a function that i run in matlab i get a 225×400 matrix. I

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From a function that i run in matlab i get a 225×400 matrix. I want to count the frequency of each element in this matrix, meaning that i need to calculate how many times each elements appears on the the matrix. My matrix name is “Idiff”

I am using:

B=unique(Idiff);

to find the unique elements in the Idiff matrix. I receive a column of 1138 elements, so i understand that these elements are unique and all the other elements in the Idiff matrix are these elements repeated.

Now i try to count how many times each unique element appears in my Idiff matrix by using:

C=histc(Idiff,B);

But what i get is a column of 47761 elements and i get confused.

Can you help me?

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1 Answer

  1. Editorial Team

    Use

    C=histc(Idiff(:),B);

    Otherwise histc runs on each column separately.

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