] x=: 10 ?...@$ 20 17 2 1 9 0 6 7 18 12 17 x - (2|x) * 1+x _1 2 _1 _1 0 6 _1 18 12 _1
----- Original Message ----- From: gary ng <[email protected]> Date: Sunday, September 5, 2010 10:06 Subject: [Jprogramming] replace/amend elements based on certain criteria ? To: Programming forum <[email protected]> > Hi, > > What would be the recommended way to do this , say replace every > element that is odd to '_1' ? > > 0 1 2 3 4 => 0 _1 2 _1 4 > > I tried to under stand the 'm } ' verb but don't know how to generate > the m based on a predicate. > > similarly how about replace the first n with _1 ? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
