_1 0 2 |."0 1 m 3 0 1 2 4 5 6 7 10 11 8 9 _1 0 2 |."_1 m 3 0 1 2 4 5 6 7 10 11 8 9
On Mon, Sep 10, 2012 at 12:17 AM, Gian Medri <gianme...@gmail.com> wrote: > Hi! > I want to rotate the rows in a matrix individually. > In APL it is very simple, using the primitive "phi" : > > ]m=:i. 3 4 > 0 1 2 3 > 4 5 6 7 > 8 9 10 11 > > ¯1 0 2 "phi" m > 3 0 1 2 > 4 5 6 7 > 10 11 8 9 > > The rotate primitive in J doesn't work in the same way, so I have done a > verb with the same functionality as in APL. > ro=: [: > [ |.&.> [: <"1 ] > > _1 0 2 ro m > 3 0 1 2 > 4 5 6 7 > 10 11 8 9 > > To me this verb looks too clumsy, is there a better solution? > > Gian Medri > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
