How to count the data exceeding threshold value?

Hi I have two sets of 281x281 data that have been normalised.And it is in percentage form.

Now, I would like to compare between two sets of data by looking at how many data in each sets exceeding threshold value? For eg; the threshold value is 10%

Thanks for your help

Answer 1

[Walter Roberson]

nnz(FirstMatrix > threshold)
nnz(SecondMatrix > threshold)

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nnz(FirstMatirx > threshold & SecondMatrix > threshold)