Thanks, Roger. I have considered (a) and (b), and I'll try (c) as well. Best wishes,
John Roger Hui wrote: > a. That's how I would do it. > b. Or use LAPACK. > c. Or perhaps the LU decomposition > http://www.jsoftware.com/jwiki/Essays/LU_Decomposition . > > > > ----- Original Message ----- > From: "John Randall" <[EMAIL PROTECTED]> > To: "Programming forum" <[email protected]> > Sent: Saturday, April 01, 2006 5:15 PM > Subject: [Jprogramming] Calculating the rank of a matrix > > Does anyone have any advice as to how to efficiently calculate the rank of > matrix in J? I have been starting from the QR decomposition (128!:0). > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
