id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
10179,wrong check on the Log Normal position parameter,cristian.rabiti@…,John Maddock,"In the Log normal there is a chaco that does not allow to use negative numbers for mu (in the manual reference page it is know as position)
For the moment I would refer to it as mu. Mu is the mean value of the log(x) and should be therefore between ]-inf,inf] since the log is defined between ]0,inf]. The problem highlights when we are seeking to represent a random variable which logarithm is normal distributed with mean negative.
BTW even in the web page of the manual there are example with mu negative: http://www.boost.org/doc/libs/1_35_0/libs/math/doc/sf_and_dist/html/math_toolkit/dist/dist_ref/dists/lognormal_dist.html",Bugs,closed,To Be Determined,math,Boost 1.54.0,Problem,invalid,lognormal,