Count number of rows in a matrix based on frequency of one element and value of another element

Hello. I'm quite rusty with Matlab and was wondering if anyone could help me with this. Let's say you have a 2000 x 2 matrix, where all the elements are integers. How can we count the number of rows that have the number 10 in the first column and any number greater than 5 in the second column?

I tried this, but didn't work:

numel(matrix(matrix(:,1) == 10) & matrix(matrix(:,2) > 5));

Thanks for your help!

Answer 1

[Matt J]

nnz(  matrix(:,1) == 10 & matrix(:,2) > 5  );

[Neuro]

Thanks! Didn't know the nnz function! :)

[Neuro]

@Matt J Sorry, I just realised that this won't work as I need to count the zeroes as elements. Is there a way to do the same thing but counting the zeroes as ones? After all, I need to count the number of elements and zeroes are still elements.