* factorized code for PDFs
* multiplied by 10 the truncation for inv gamma type 2 (so as to mimic the truncation for inv gamma type 1)
* various cosmetic changes
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1984 ac1d8469-bf42-47a9-8791-bf33cf982152
* added preprocessor support for inverse gamma of type 2
* added support for this distribution in prior_bounds.m and rndprior.m
* other cosmetic changes
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1983 ac1d8469-bf42-47a9-8791-bf33cf982152
* replaced CDF, PDF, quantile functions of the gamma by a GPL'd one
* replaced quantile function of the chi-square by a GPL'd one
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1981 ac1d8469-bf42-47a9-8791-bf33cf982152
* replaced dnorm, pnorm and qnorm by GPL alternatives in distributions/
* only add distributions/ to the path if under Matlab without Statistics toolbox
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1979 ac1d8469-bf42-47a9-8791-bf33cf982152
sebastien
adjemian
assia
michel