[Gretl-users] vectorized solution possible?

Dear all, I am facing the following simple problem for which I only find a loop solution but loops are (generally?) slow compared to vectorized approaches (if possible). <hansl> matrix Y = seq(1,10)'                    # original realizations SEL = ceil(muniform(10,1)*10)     # selection vector (select i-th row from Y) eval Y ~ SEL matrix X = zeros(10,1)                # put re-sampled Y values here # I want to avoid this annoying loop... loop i=1..rows(SEL) -q     catch X[i]=A[SEL[i]]                # i-th position Y value endloop </hansl> In MATLAB this works simply by: X = Y(SEL) Is there any way to vectorize this task?? Thanks in advance. Artur