performance - MATLAB scaled repmat -

is there easy way have scaled repmat in matlab?

the idea is, given matrices a , b

result = [a*b(1, 1) a*b(1, 2) a*b(1, 3) ...             a*b(1, n); a*b(2, 1)...]; 

right accomplish using permute , reshape, permutation operation 90% of script time.

i think looking kron:

result = kron(b, a);