ncx2rnd (Statistics Toolbox)

Random matrices from the noncentral chi-square distribution.

Syntax

R = ncx2rnd(V,DELTA)
R = ncx2rnd(V,DELTA,m)
R = ncx2rnd(V,DELTA,m,n)

Description

R = ncx2rnd(V,DELTA) returns a matrix of random numbers chosen from the non-central chisquare distribution with parameters V and DELTA. The size of R is the common size of V and DELTA if both are matrices. If either parameter is a scalar, the size of R is the size of the other parameter.

R = ncx2rnd(V,DELTA,m) returns a matrix of random numbers with parameters V and DELTA. m is a 1-by-2 vector that contains the row and column dimensions of R.

R = ncx2rnd(V,DELTA,m,n) generates random numbers with parameters V and DELTA. The scalars m and n are the row and column dimensions of R.

Example

ncx2rnd(4,2,6,3)

ans =

    6.8552    5.9650   11.2961
    5.2631    4.2640    5.9495
    9.1939    6.7162    3.8315
   10.3100    4.4828    7.1653
    2.1142    1.9826    4.6400
    3.8852    5.3999    0.9282

References

Evans, M., N. Hastings, and B. Peacock, Statistical Distributions, Second Edition, John Wiley and Sons, 1993. p. 50-52.

Johnson, N., and S. Kotz, Distributions in Statistics: Continuous Univariate Distributions-2, John Wiley and Sons, 1970. pp. 130-148.