MATLAB: Gaussian distribution with randn

random number generator

Is it possible and how can i obtain a Gaussian distribution with randn for
   mean= 0.126 
and it varies by+- 0.02, max=0.146 and min=0.106, 
to generate 1300 random values.

Best Answer

If you want to generate Gaussian distribution with the given mean and variance (not std), and then extract the values in [min max] range, the following code can do it.
va = 0.02;
mu = 0.126;
ul = 0.146;
ll = 0.106;
x = mu + randn(20000,1)*sqrt(va); % Generate sufficient random numbers
idx = (ll <= x) & (x <= ul); % Extract the value in the given range [min max]
x = x(idx);
x = x(1:1300); % Extract 1300 numbers
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