If I correctly understand your question, could it be you want: ?~21
It gives a random permutation of i.21 (and also works for much larger values) Ben ________________________________________ From: Programming [[email protected]] on behalf of Eddie Bracho [[email protected]] Sent: Monday, January 11, 2016 11:22 To: [email protected] Subject: [Jprogramming] Roll (?) produces domain error on large input (? ! 21) |domain error | ( ?!21) Is this intended behavior? I'm trying to shuffle an array by providing a random permutation to Anagram (A.), but this limitation does not allow me to shuffle arrays with more than 20 elements. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
