Noncentral F mean and variance
[M,V] = ncfstat(NU1,NU2,DELTA)
[M,V] = ncfstat(NU1,NU2,DELTA) returns
the mean of and variance for the noncentral F pdf
with corresponding numerator degrees of freedom in
denominator degrees of freedom in
NU2, and positive
noncentrality parameters in
DELTA can be vectors, matrices, or multidimensional
arrays that all have the same size, which is also the size of
A scalar input for
DELTA is expanded to a constant array with the
same dimensions as the other input.
The mean of the noncentral F distribution with parameters ν1, ν2, and δ is
where ν2 > 2.
The variance is
where ν2 > 4.
[m,v]= ncfstat(10,100,4) m = 1.4286 v = 0.4252
 Evans, M., N. Hastings, and B. Peacock. Statistical Distributions. 2nd ed., Hoboken, NJ: John Wiley & Sons, Inc., 1993, pp. 73–74.
 Johnson, N., and S. Kotz. Distributions in Statistics: Continuous Univariate Distributions-2. Hoboken, NJ: John Wiley & Sons, Inc., 1970, pp. 189–200.