> reliable, predictable behavior of empties So what should be the result of the following and why? > (3 0$0 );(0 4$'') > (4 0$'');(3 0$0 )
----- Original Message ----- From: Henry Rich <[EMAIL PROTECTED]> Date: Monday, October 15, 2007 5:31 Subject: RE: [Jprogramming] inverted table ifa To: 'Programming forum' <[email protected]> > The proper response to a question like that is "what business > is it of yours?". Maybe he's passing the column to some > verb that > he got from somebody else. He just wants reliable, predictable > behavior of empties. There shouldn't have to be any discussion > of motive. > > But in case he didn't get the verb from somebody else: > > {.!.0 > > works to coerce an empty to numeric type. > > Henry Rich > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Roger Hui > > Sent: Monday, October 15, 2007 8:05 AM > > To: Programming forum > > Subject: Re: [Jprogramming] inverted table ifa > > > > Why would you be doing overtake on a column of an inverted table? > > > > > > > > ----- Original Message ----- > > From: bill lam <[EMAIL PROTECTED]> > > Date: Sunday, October 14, 2007 23:05 > > Subject: Re: [Jprogramming] inverted table ifa > > To: Programming forum <[email protected]> > > > > > fill element. > > > 6{.("1) 1{:: ifa 3 2$ 'ab';'' > > > 0 0 0 0 0 0 > > > 0 0 0 0 0 0 > > > 0 0 0 0 0 0 > > > > > > Roger Hui wrote: > > > > Why does it matter what the internal type of an empty > array is? > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > From: bill lam <[EMAIL PROTECTED]> > > > > Date: Sunday, October 14, 2007 19:59 > > > > Subject: [Jprogramming] inverted table ifa > > > > To: Programming forum <[email protected]> > > > > > > > >> ifa > > > >> <@(>"1)@|: > > > >> > > > >> 3!:0&> > ifa 3 > > > 2$ 'ab';'' > > > >> 2 1 > > > >> > > > >> the literal empty was changed into boolean empty. why > this > > > >> happen and how to > > > >> prevent it? > > > >> > > > >> (tested on both j601 and j602) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
