P_f
Probability integral for F distribution.
 
Loading        LOADSUB ALL FROM "IGAMMA.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                INTEGER M,N
REAL X,Y
Y=FNP_f(M,N,X)
 
Description                
FNP_f returns the value of the probability integral of the univariate F probability density function with parameters m and n at x, P(x;m,n). This integral is defined for m and n positive or zero.
 
Errors                
FNP_f causes an HTBasic error if its arguments are not of the types listed in the USAGE                section, above, or if either m or n is negative.
 
See Also
F_f, Q_f
 
P(x;1,2)