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

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.

Answer 1

[Arif Hoq]

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

[Askic V]

It is also possible to use transpose:

A=mean(M(:,2:end).').'

[Julia]

Thank you!!