
Re: Subtract values in a matrix
Posted:
Nov 19, 2012 12:20 AM


"Bob Ferreira" <migmick2000@hotmail.com> wrote in message news:k88nie$f7r$1@newscl01ah.mathworks.com... > Hi there! > > I need really need some help on this, > I have a matrix which has "L" lines and "C" columns. I want to subtract > each value in the matrix by the value the first value in the first line of > its column, and give me a matrix with those value, with the first values > of the first line being "0". > > 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] > > I hope I made myself understood, if not, please ask away. > > Thank you for your time.
m = [2,2,2;3,3,3;4,4,4]; m2 = bsxfun(@minus, m(1, :), m)
 Steve Lord slord@mathworks.com To contact Technical Support use the Contact Us link on http://www.mathworks.com

