getting the mean EXCEPT zero entries

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cgo
cgo 2018-11-9
评论： madhan ravi 2018-11-9
I have a matrix, M = [zeros(10,10); 1 , 2 , 3 ,4 ,5,6,7,8,9,10];
I want to get the mean of each column, except the zero terms. How do I do this?

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2018-11-9
M=zeros(5);
M(randi(25,10,1))=1:10;
M(M==0)=nan;
mean(M,'omitnan')

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