Gaussian distributed random numbers

9 vues (au cours des 30 derniers jours)
Arathi P
Arathi P le 7 Mar 2013
Sir, I need to create a 4*2 matrix in which all the elements are independent identically distributed(i.i.d) complex gaussian variables with zero mean and unit variance.how do i create it? Using randn function, mean zero and variance one will be obtained only for larger number of sets, but not for 8 values.
  1 commentaire
Youssef  Khmou
Youssef Khmou le 7 Mar 2013
Modifié(e) : Youssef Khmou le 7 Mar 2013
hi, its fine, m/sigma/variance are also Random variables , try :
for n=3:1:100
N=(1/sqrt(2))*(randn(n,n-2)+j*randn(n,n-2));
M(n)=mean(N(:));
S(n)=std(N(:));
V(n)=var(N(:));
end
figure, plot(real(M)), xlabel(' Samples'),title(' Mean');
figure, plot(V), xlabel(' Samples'),title(' Variance');

Connectez-vous pour commenter.

Réponse acceptée

Youssef  Khmou
Youssef Khmou le 7 Mar 2013
Modifié(e) : Youssef Khmou le 7 Mar 2013
hi Arathi,
try :
N=(1/sqrt(2))*(randn(4,2)+j*randn(4,2));
M=mean(N(:))
S=std(N(:))
V=var(N(:))
  1 commentaire
Arathi P
Arathi P le 21 Mar 2013
thank you sir

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Random Number Generation dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by