lyngby_cdf_f

 lyngby_cdf_f         - Fisher's F distribution

       function P = lyngby_cdf_f(x, r1, r2)

       Input:  x   Value where the function is evaluated
               r1  Degrees of freedom
               r2  Degrees of freedom

       Output: P   Lower tail area

       Lower tail (cumulated) Fisher's F-distribution. The value is 
       computed by calls to the incomplete beta function.

       Ref: Press et al, Numerical Recipes in C, page 229
            (Lennart Raade, Beta, 17.2 (p 375) 17.4, page 385)

       See also LYNGBY, LYNGBY_PDF_F, LYNGBY_CDF_BETA,
                LYNGBY_CDF_CHI2, LYNGBY_CDF_FISHERSG,
                LYNGBY_CDF_GAUSS, LYNGBY_CDF_T, LYNGBY_CDF_WILRANK.

 $Id: lyngby_cdf_f.m,v 1.2 2003/02/11 19:53:30 fnielsen Exp $