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brede_cdf_f

PURPOSE ^

brede_cdf_f - Fisher's F distribution

SYNOPSIS ^

function P = brede_cdf_f(x, r1, r2)

DESCRIPTION ^

 brede_cdf_f          - Fisher's F distribution

       function P = brede_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.

       Input argument 'x' can be a vector.

       If the degrees of freedom is zero or under then NaN is
       returned. The function will error if the first degrees of
       freedom is infinite.

       The function corresponds to the fcdf function in the Matlab
       statistics toolbox.

       See also BREDE, BREDE_CDF_BIN, BREDE_CDF_CHI2,
                BREDE_CDF_HYPERGEO, BREDE_LOC_TEST_EQUAL.

 $Id: brede_cdf_f.m,v 1.5 2008/02/05 20:54:46 fn Exp $

CROSS-REFERENCE INFORMATION ^

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