(*=/~@i.@#)4 3 2.23607 0 4 0 0 0
0 3 0 0 0 0 2.23607 0 0 0 0 0 On Wed, Feb 26, 2014 at 8:12 PM, Joe Bogner <[email protected]> wrote: > Sorry, I figured it out: > > I just needed one more 0... > > ] S * (4 4 $ 1 0 0 0 0) > 4 0 0 0 > 0 3 0 0 > 0 0 2.23607 0 > 0 0 0 0 > > On Wed, Feb 26, 2014 at 10:02 PM, Joe Bogner <[email protected]> wrote: > > I'm experimenting with svd and am looking for a nicer way of creating > > a matrix from the S diagonal > > > > 4 3 2.23607 0 > > > > needs to be > > > > ] (4 4 $ 4 0 0 0 0 3 0 0 0 0 2.23607 0 0 0 0 0 ) > > 4 0 0 0 > > 0 3 0 0 > > 0 0 2.23607 0 > > 0 0 0 0 > > > > What would be the idiomatic way to make that conversion? I tried > > various versions of reshape and insert. > > > > Not quite... > > > > ],\ S > > 4 0 0 0 > > 4 3 0 0 > > 4 3 2.23607 0 > > 4 3 2.23607 0 > > > > I also thought about multiplying it by a diagonal matrix of 0s and 1s > > but couldn't get that figured out either > > > > Thanks > > Joe > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
