Replace values like (-999) in matrix to zero with one statement?!

I am looking for replacing values (-999) in a matrix (m*3) to zero. I can do that using for/While loop but my program is going to be delayed to execute.

Anyone experience change a values to zero?

Thanks in advance!

Answer 1

[Geoff Hayes]

Mohammed - try something like the following. If mtx is your matrix

 % create a 5x5 matrix
 mtx = [-999     1    2    3    4;
           5 -999     6    7    8;
           9    10 -999   11   12;
          13    14   15 -999   16;
          17    18   19   20 -999];

 % set all elements that are -999 to zero
 mtx(mtx==-999) = 0;

This works only if the value you wish to replace is an integer.

Try the above and see what happens!

[Mohammed]

God! I even knew how to use this. Forgot!