The ex-Gaussian distribution
http://rss.acs.unt.edu/Rdoc/library/gamlss.dist/html/exGAUS.html
The R GAMLSS packages
http://www.gamlss.com/
http://rss.acs.unt.edu/Rdoc/library/gamlss.dist/html/exGAUS.html
The R GAMLSS packages
http://www.gamlss.com/