How about key? (3 : '>(2|i.#y)</.y') i. 6 3 0 1 2 6 7 8 12 13 14
3 4 5 9 10 11 15 16 17 > -----Original Message----- > From: [email protected] [mailto:programming- > [email protected]] On Behalf Of Alex Giannakopoulos > Sent: Tuesday, November 20, 2012 5:51 PM > To: [email protected] > Subject: [Jprogramming] Splitting (re-arranging) a matrix > > OK, here is a simplified example of what I'm trying to do: > I want to split a matrix into two, so that the result is composed of the odd > rows and even rows of the matrix respectively > > e.g. > > oddevenrows i. 6 > 0 1 2 > 6 7 8 > 12 13 14 > > 3 4 5 > 9 10 11 > 15 16 17 > > I'm thinking, should I use select or cut or something else. Long day. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
