Mean of 3rd dimension

I have a matrix of 10 x 20 x 35. How do I mean the first 5 layers of the 3rd dimension (layers 1-5), resulting in 2D matrix of 10x20?

Thanks!

Answer 1

[Hiro Yoshino]

A = [1 2 3; 4 5 6; 7 8 9];
A(:,:,2) = [10 11 12; 13 14 15; 16 17 18];
A(:,:,3) = [19 20 21; 22 23 24; 25 26 27];
A(:,:,3) = [28 29 30; 31 32 33; 34 35 36];

meanA = mean(A(:,:,1:2),3);

Take a look at this exampl. This will help you out!

also you should see the function "mean":

https://www.mathworks.com/help/matlab/ref/mean.html?searchHighlight=mean&s_tid=doc_srchtitle&requestedDomain=

[Cside]

thank you hiro :)