How to generate a Gaussian random variable?

I need to generate Gaussian random variable with mean=0 and standard deviation=2.

How to generate using MATLAB?

Please help me.

Answer 1

[Mohammad Sami]

You can use the function randn to generate the random variable as desired.

a = 2; % standard deviation
b = 0; % mean
nrow = 1000;
ncol = 1;
y = a.*randn(nrow,ncol) + b;
mean(y)

ans = 0.0573

std(y)

ans = 1.9947

[relinquere]

Thank you.