MATLAB: Mean value of a matrix subarray

MATLABmatrixmatrix arraymeanmean valuesubarray

Hello!!

I have a matrix of 14000x7x3 elements.

I want to calculate the mean value of the elements in rows 4000 to 5000 of the third colum page 2.

How can I do it?

Thank you in advanced

Best Answer

 mean(A(4000:5000,3,2))

Related Solutions

MATLAB: Mean of elements of a matrix

mean(A(:))

Gives the mean of the entire matrix

MATLAB: Mean value of subarrays

A couple of calls to convn. The first call will determine the number of zeros; the second will calculate the sum of all values in the sub array; array divide the second by the first.

If you don't want to do it to EVERY POSSIBLE subarray, use blkproc or blockproc with function handle

 @(x)sum(x(:))./(sum(logical(x(:)))

Also be aware that since your data type is uint32, if the sum of the 92*92*4 values exceeds 4,294,967,295 it will truncate to 4,294,967,295 and your mean will be wrong.

Best Answer

Related Solutions

MATLAB: Mean of elements of a matrix

MATLAB: Mean value of subarrays

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