chi2rnd (Statistics Toolbox)

Random numbers from the chi-square (²) distribution.

Syntax

R = chi2rnd(V)
R = chi2rnd(V,m)
R = chi2rnd(V,m,n)

Description

R = chi2rnd(V) generates random numbers from the ² distribution with degrees of freedom parameters specified by V. R is the same size as V.

R = chi2rnd(V,m) generates a matrix of size m containing random numbers from the ² distribution with degrees of freedom parameter V, where m is a 1-by-2 vector containing the row and column dimensions of R.

R = chi2rnd(V,m,n) generates an m-by-n matrix containing random numbers from the ² distribution with degrees of freedom parameter V.

Examples

Note that the first and third commands are the same, but are different from the second command.

r = chi2rnd(1:6)
r =
    0.0037    3.0377    7.8142    0.9021    3.2019    9.0729
r = chi2rnd(6,[1 6])
r =
    6.5249    2.6226   12.2497    3.0388    6.3133    5.0388
r = chi2rnd(1:6,1,6)
r =
    0.7638    6.0955    0.8273    3.2506    1.5469   10.9197

chi2pdf chi2stat