means of the 3rd dimension of a matrix

AA = rand(3) I want a 2d matrix BB containing means of 3rd dimension of matrix A How I can do this smartly? Thanks

[Azzi Abdelmalek]

What does that mean?

[Asl]

such a martix I want BB = [

mean(a(1,1,:) mean(a(1,2,:) ; mean(a(2,1,:) mean(a(2,2,:)

]

[Azzi Abdelmalek]

But, A=rand(3) is not 3 dimension

Answer 1

[Walter Roberson]

BB = mean(A, 3);

[Asl]

BB = mean(A, 3); works but BB = std(A, 3); does not work any idea=

[Walter Roberson]

std(A,0,3)

As could be determined by looking at the documentation for std()