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How do I append a row average to a new matrix

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hbcukid on 22 Feb 2021
Commented: hbcukid on 22 Feb 2021
I have a 500x500 size matrix and I am trying to get the average of every 5 values in a row to make it a 100x100 matrix. How do I do that?
foo = randi(500,500)

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Accepted Answer

per isakson
per isakson on 22 Feb 2021
With a little bit of guessing. Does this answer your question?
foo = randi(500,500);
cac = mat2cell( foo, 5*ones(100,1), 5*ones(100,1) );
num = cellfun( @(sub) mean(sub(:)), cac );
num is <100x100>

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