Generates a vector of non-central chi-square random variables with the given number of degrees of freedom and the given non-centrality parameters. The general syntax for its use is
y = randnchi(n,mu)
where n
is an array containing the degrees of freedom for
each generated random variable (with each element of n
>= 1),
and mu
is the non-centrality shift (must be positive).
A non-central chi-square random variable is the sum of a chisquare
deviate with n-1
degrees of freedom plus the square of a normal
deviate with mean mu
and standard deviation 1.
Here is an example of a non-central chi-square random variable:
--> randnchi(5*ones(1,9),0.3) ans = <float> - size: [1 9] Columns 1 to 3 0.0066034445 0.026907619 0.0088143516 Columns 4 to 6 0.042577077 0.0067255395 0.19600929 Columns 7 to 9 0.12045909 4.7910717e-06 7.9838595e-05