[Gretl-devel] function to locate a string in a strings array

Hi, I find the following function useful: <hansl> function scalar arrindex(strings S, string s) loop i = 1..nelem(S) -q if S[i] == s out = i return out endif endloop return 0 # no match was found end function strings checks = defarray("hey", "ho", "let's", "go") eval arrindex(checks, "go") eval arrindex(checks, "No go") </hansl> (The "out=i / return out" redundancy is due to the bug I just posted.) That way you can have an array of strings serving as labels for an accompanying array of matrices, and you can pick the right matrix in the array by searching the strings array for a match. Dreaming on in terms of syntax, it would be wonderful if one could loop over an array like this: "loop foreach i S", but it would of course be just syntactic sugar. thanks, sven