Hi, I was surprised that this works with 'i' being used in two nested loops: <hansl> matrix m1 = I(5) loop i = 1..5 matrix hey = m1[i,] loop i = 1..2 matrix hu = m1[,i] endloop endloop </hansl> Although I'm impressed that gretl gets this right, I tend to think that it should be banned, because subtle errors would be likely IMHO. This is with a snapshot from May 20th. thanks, sven