Thank you for your comments. After reading the dictionary on Raze (;) several times I see why it didn't work. However, after fooling around some more I found what did work as I wanted. Need to spend a little time really understanding it.
;(<2 2$;:'abc de fg h'),<1#,:;:'ww xxxx' +---+----+ |abc|de | +---+----+ |fg |h | +---+----+ |ww |xxxx| +---+----+ ;(<2 2$;:'abc de fg h'),<0#,:;:'ww xxxx' +---+--+ |abc|de| +---+--+ |fg |h | +---+--+ On Sat, Jun 28, 2008 at 4:37 PM, Fraser Jackson <[EMAIL PROTECTED]> wrote: > > The following may be a simpler example of your problem. > > (2 2$;:'abc de fg h'),0$1 2 $a: > ┌───┬──┐ > │abc│de│ > ├───┼──┤ > │fg │h │ > └───┴──┘ > (2 2$;:'abc de fg h'),0 2$a: > ┌───┬──┐ > │abc│de│ > ├───┼──┤ > │fg │h │ > └───┴──┘ > (2 2$;:'abc de fg h'),0$a: > ┌───┬──┐ > │abc│de│ > ├───┼──┤ > │fg │h │ > ├───┼──┤ > │ │ │ > └───┴──┘ > > > ----- Original Message ----- From: "Don Guinn" <[EMAIL PROTECTED]> > To: "Programming forum" <[email protected]> > Sent: Sunday, June 29, 2008 9:20 AM > Subject: [Jprogramming] Extra empty item from an empty table > > >> Was doing some recursive directory searches and needed to combine the >> results from multiple directories but when a directory did not find any >> items I got an item of nulls. Looking at the example shown below, I don't >> think I should get the item of nulls. >> >> (2 2$;:'abc de fg h'),;2#<,:;:'ww xxxx' >> +---+----+ >> |abc|de | >> +---+----+ >> |fg |h | >> +---+----+ >> |ww |xxxx| >> +---+----+ >> |ww |xxxx| >> +---+----+ >> (2 2$;:'abc de fg h'),;1#<,:;:'ww xxxx' >> +---+----+ >> |abc|de | >> +---+----+ >> |fg |h | >> +---+----+ >> |ww |xxxx| >> +---+----+ >> (2 2$;:'abc de fg h'),;0#<,:;:'ww xxxx' >> +---+--+ >> |abc|de| >> +---+--+ >> |fg |h | >> +---+--+ >> | | | >> +---+--+ >> >> Why is there a third item which is empty in the last case? Am I >> misunderstanding something about append? >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm >
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