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Random matrices from the noncentral F distribution.
Syntax
R = ncfrnd(NU1,NU2,DELTA) R = ncfrnd(NU1,NU2,DELTA,m) R = ncfrnd(NU1,NU2,DELTA,m,n)
Description
R = ncfrnd(NU1,NU2,DELTA) returns a matrix of random numbers chosen from the noncentral F distribution with parameters NU1, NU2 and DELTA. The size of R is the common size of NU1, NU2 and DELTA if all are matrices. If any parameter is a scalar, the size of R is the size of the other parameters.
R = ncfrnd(NU1,NU2,DELTA,m) returns a matrix of random numbers with parameters NU1, NU2 and DELTA. m is a 1-by-2 vector that contains the row and column dimensions of R.
R = ncfrnd(NU1,NU2,DELTA,m,n) generates random numbers with parameters NU1, NU2 and DELTA. The scalars m and n are the row and column dimensions of R.
Example
Compute 6 random numbers from a noncentral F distribution with 10 numerator degrees of freedom, 100 denominator degrees of freedom and a noncentrality parameter,
, of 4.0. Compare this to the F distribution with the same degrees of freedom.
r = ncfrnd(10,100,4,1,6)
r =
2.5995 0.8824 0.8220 1.4485 1.4415 1.4864
r1 = frnd(10,100,1,6)
r1 =
0.9826 0.5911 1.0967 0.9681 2.0096 0.6598
References
See Also
ncfcdf,ncfinv,ncfpdf,ncfstat