I am wondering about how to implement efficiently a code that replaces some entries of an array with specific values. In other words, I have a matrix and a vector with some indices of the matrix where a logical condition holds. I want to change these entries for some values that I have in a vector.
So far, I’ve doing it with a loop, but perhaps there is a better strategy that uses filtering or something like that.
A small example would be:
A = collect(1:8); println(A) B = [10,20] C = A.<=2 k = 1 for t=1:8 if C[t] == 1 A[t] = B[k] k = k+1 else end end
However, I need to do this in inside a quite intensive loop, with a bigger matrix. The indices I have to change are always the same, but the vector of values (the counterpart of B) changes in each iteration.
Thanks so much!