(Found in my drafts, was this never sent? You are right that I omitted the left argument, but I was rewarded with that with a domain error. (And I am very impressed that, even with the loss of the formatting hints by the copy/paste/send involved you knew that test was a dyad. The format of the message was much clearer to me before I hit send and the mail/forums reformatted it. I do wish the forums would allow screen captures and other attachments. )
The error occurred after that, when I tried to advance the lab. My only suspicion is that I entered Ctrl-comma vs Ctrl-period, but it wasn't obvious. Notice that the lab continues active after the error. > On Dec 7, 2019, at 2:27 PM, 'Jim Russell' via Beta <[email protected]> wrote: > > comma ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
