Error using ==> rdivide

For

w = randn(10, 51300);
w = w./ sum(w,1);

i get

??? Error using ==> rdivide
Matrix dimensions must agree.

For each column of 10 elements, I wish to divide each element by sum(w,1).

How can I do this without using a for loop? thanks

Answer 1

[the cyclist]

Use the bsxfun() function:

>> w = bsxfun(@rdivide,w,sum(w,1));

Answer 2

[Greg Heath]

clear all, clc

rng(4151941)

w = randn(2, 3)

w1 = w./ repmat(sum(w),2,1)

w2 = bsxfun(@rdivide,w,sum(w))

e12 = norm(w1-w2)

Hope this helps.

Greg