(a: *./@:= ]) a:,'';3 0 (a: *./@:= ])"1 a:,a: 1
----- Original Message ----- From: PR PackRat <[email protected]> To: [email protected] Sent: Wednesday, June 1, 2016 1:02 AM Subject: [Jprogramming] How to tell if all boxes in a row are empty? I need to perform a certain action if an entire row in a transposed table (i.e., originally a column) has empty values, that is, all boxed data are the equivalent of a: or ''. The result should be a Boolean value--"true" meaning that the entire row has empty values. (A typical application would be old stock market data, where all of the "Open" values might be null or empty.) I don't know how to even begin writing such code (without a for/next loop to separately evaluate each box's value, a very non-J way of doing it). Please help. Thanks in advance! Harvey ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
