sorry for quick posts by me.. I am newbie in J I want to solve a linear system of equation and I want to get a desirable design matrix for the equation considering a simple case of 4 x 4 matrix i. 4 4: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
could you give a strategy to duplicate each row and get a 8 x 4 matrix, e.g. : 0 1 2 3 0 1 2 3 4 5 6 7 4 5 6 7 8 9 10 11 8 9 10 11 12 13 14 15 12 13 14 15 At the end for each duplicate array I want to multiply them by another 2 x 4 matrix (say, 1 1 0 0,. 0 1 1 1) and get the final design matrix. Is the solution come with the concept of boxing in this situation? Pascha -- View this message in context: http://old.nabble.com/duplicate-row-of-matrix-tp34394924s24193p34394924.html Sent from the J Programming mailing list archive at Nabble.com. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
