Finding mean of row and column in a 3D matrix

Hi, I have a matrix that is 40x20x905. I want to extract a matrix that is 1x1x905 which will have the mean value of the rows(15:25) and the mean value of the columns(5:15). Is this possible?

Lets say the signal is 'X'. And I am to extract:

a = X(mean of rows(15:25), mean(5:15) , :)

To get 'a' as:

a (1x1x905)

Is there a way to do this?

Answer 1

[Matt J]

a = mean( X(15:25,5:15,:), [1,2])

[Gerald Musandirire]

Thank you!!!