Bob, Please give your desired output with the example, because your problem specification is a little ambigous, especially with your definition of mask, because its leftmost entry has only 4 elements and does not agree with your stated result.
On Wed, Dec 2, 2009 at 11:11 AM, Robert O'Boyle <[email protected]> wrote: > > > > mask=. 0 1 1 1, 1 1 1 1 1, 0 0 0 0 0,: 1 1 1 1 0 > [snip] > Which properly identifies the row entries but shifts row 0 to the left by > one. > > > -- (B=) <-----my sig Brian Schott ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
