
Re: Subtract values in a matrix
Posted:
Nov 17, 2012 2:54 PM


Daniel Gebhardt <gebhardt@cs.tuberlin.de> wrote in message <20121117203903.4fb7f708@buero3>... > "Bob Ferreira" <migmick2000@hotmail.com> schrieb am Sat, 17 Nov 2012 19:12:14 +0000 (UTC): > > > I have a matrix which has "L" lines and "C" columns. I want to subtract each value in the matrix by the [...] first value in the [...] line [...] > > > Example: m = [2,2,2;3,3,3;4,4,4] the matrix given should be [0,0,0;1,1,1;2,2,2] > > Hi, > > even so it might not scale well, and eventually fail on large matrices due to memory, it should work: > > (diag(m(1,:))*ones(size(m))m')' > > > Daniel
Thanks for your answer but it isnt going to work since the matriz Im using isnt square, so you end up multiplying matrices with different number of lines

