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

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

Answer 1

[Matt J]

mean (A(:,2:3),2)

[Masoud Taleb]

Thank you very much, it works nice! I learnt the missing part :)