Average the 3rd dimension in a matrix

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Jonas Damsbo
Jonas Damsbo on 4 Jan 2019
Commented: Jonas Damsbo on 4 Jan 2019
I have a 360x181x360.
I want to average the 3rd dimension with 4, so I get a new matrix like 360x181x90.
How can I do that?

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Accepted Answer

Bruno Luong
Bruno Luong on 4 Jan 2019
Edited: Bruno Luong on 4 Jan 2019
Mean every 4 indices of the third dimension
A=rand(360,181,360);
[m,n,p] = size(A);
m = mean(permute(reshape(A,m,n,4,[]),[1 2 4 3]),4)

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