I don't see what's wrong with flagging the missing points in the array - it seems like the logical thing to do and it avoids myriad problems with special values.
On Thu, Sep 3, 2009 at 4:22 PM, James C Field <[email protected]>wrote: > Raul Miller wrote: > > On Thu, Sep 3, 2009 at 3:00 PM, James C Field<[email protected]> > wrote: > > > >> Your problem ... indexing beyond array boundaries while producing > >> presumably undefined "fill" elements sounds much like my olde proposal. > >> > > > > Er... I very much want defined values, and do not > > want undefined values. > > > > Thanks, > > > > > What do you want the "fill" marker to be? > Blank fill for character or zero fill for integer? Real or imaginary? > Perhaps a simple extension such as used in APL TAKE. > > I believe that this might be is a missed opportunity... A can of worms > or a new ABSENT data type. > > Jim > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
