How to average every row of several columns in a matrix?

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Masoud Taleb
Masoud Taleb 2022-4-24
评论： Masoud Taleb 2022-4-24
Hello
I have matrix that has 1000 columns. I want to average the data of some desired columns. For example if the matrix A is like this:
A = 1 2 4 2 2 3 5
3 5 6 3 2 7 8
2 8 4 8 9 2 1
I want the average of column 2 and 3 apears as:
3
5.5
6
I tried to used "mean (A,2)" but it avareges whole columns that is not what I want. Can anyone help in this?
Thanks in advance

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Matt J
Matt J 2022-4-24
mean (A(:,2:3),2)

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