stan-dev/stan — pull request #469 by mike-lawrence (2013-12-28 02:33:55+00:00)
Title: Add wiener distribution

Code from by Joachim Vandekerckhove http://www.cidlab.com/supp.php?o=wienerstan, which was created for stan v1.3; tweaked by Mike Lawrence to (hopefully) work for 2.1.0.