PsiLogistic Distribution

PsiLogistic (μ,s,...)

PsiLogistic (µ,s) is an unbounded distribution, symmetric around its mean, with broader tails than the Normal distribution.  The Logistic distribution is often used to model growth processes.

Alternate Formulation:  PsiLogisticAlt

PsiLogisticAlt is the PsiLogistic distribution defined through alternative arguments.  Two parameters are required and both must be chosen from the following list:  2 different percentiles, mean, var or scale.