new array using average row of the old array

I have an array M(1000,1000) and i want to build a new array N(1000,1000), where each element of N has the old value minus the average of its row (in M) devided by the standard deviation of this row. If the element is zero no action will be taken. Also, from the average the zeros should be excluded.

Can you help me?

thank you in advance

Answer 1

[Matt J]

Hint - the bsxfun() command could prove useful.