How can I add a random error to many elements in a matrix?

Hi, I have a matrix of values calculated from a polynomial. I also have a Gaussian error function,

r1 = rand();
r2 = rand();
g = sqrt(-2*log(r1))*cos(2*pi*r2)

I would like my function to then calculate and add different values of g to each of the n elements in the matrix. Could anyone point me in the right direction?

Answer 1

[Star Strider]

See if this does what you want:

M = randi(9, 3, 4);                                     % Matrix (Integers)

r1 = rand(size(M,1),1);
r2 = rand(1,size(M,2));
g = sqrt(-2*log(r1))*cos(2*pi*r2);

M_With_Noise = M + g;

I’m guessing at how to work with your ‘g’ function. This seems to work.

[Alex Saoulis]

This seems to work! Thanks a lot!

[Star Strider]

My pleasure!