Converts the mean and standard deviation of a Gamma-distributed variable into the parameters \(s\) and \(\nu\).
.meanStd2GammasNu(m, std)
A vector with parameters \(s\) and \(\nu\).
mean parameter
standard deviation
The parameters s
and nu
are related to the regular shape
\(\alpha\) and rate \(\beta\) parametrization in the following way:
\(\alpha = \nu / 2\)
\(\beta = s / 2\)