brede_pdf_chi2

 brede_pdf_chi2       - PDF of chi2-distriibution

       function p = brede_pdf_chi2(chi2, dof); 

       Input:  chi2   chi2 values
               dof    Degrees of freedom

       Output: p      Probability density value

       This function computes the probability density function for
       the chi�-distribution.

       Ref: Mardia, 1979, p487, equation B.3.2

 $Id: brede_pdf_chi2.m,v 1.1 2002/02/06 13:46:51 fnielsen Exp $