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How to calculate the mean of each row, excluding the first column?

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For example, if I have this matrix
M=[0 3 4
0 6 5
0 9 2
0 3 1
0 8 9
0 4 6]
How can I calculate the mean of each row, excluding that 0? I tried
A=mean(M(:,2:end))
but this code gives me the mean of each column instead of each row.

Accepted Answer

Arif Hoq
Arif Hoq on 12 Feb 2023
M=[0 3 4
0 6 5
0 9 2
0 3 1
0 8 9
0 4 6];
A=mean(M(:,2:end),2)
A = 6×1
3.5000 5.5000 5.5000 2.0000 8.5000 5.0000

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