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spm_digamma

PURPOSE

function [y] = spm_digamma(x)

SYNOPSIS

function [y] = spm_digamma(x)

DESCRIPTION

 function [y] = spm_digamma(x)

 The digamma function (derivative of the gamma function)

 Implementation via MEX routine

 Solaris: spm_digamma.mexsol

 Compiled via make function (based on mex spm_digamma.c)

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

spm_kl_gamma KL divergence for Gamma densities
spm_vb_F Compute lower bound on evidence, F, for VB GLMAR models

SOURCE CODE

0001 function [y] = spm_digamma(x)
0002 
0003 % function [y] = spm_digamma(x)
0004 %
0005 % The digamma function (derivative of the gamma function)
0006 %
0007 % Implementation via MEX routine
0008 %
0009 % Solaris: spm_digamma.mexsol
0010 %
0011 % Compiled via make function (based on mex spm_digamma.c)