MATLAB: Simple use of bsxfun

Question

I am having trouble doing simple vectorization operations for GPU using bsxfun and arrayfun.

For example, How would I do this operation on a GPU :

X(X>num)=num

I tried :

X = bsxfun(@gt, X, num)

Then I am stuck at the assignment. I am guessing the ternary operations are not possible?

Thank you so much for helping out.

Answer 1

Tjhere is no reason to use bsxfun here, because X(X > num) = num is sufficient already. An alternative:

X = min(X, num);

bsxfun is useful, when an elementwise operation between a matrix and a vector should be performed and the vector needs to be "inflated" for this.