Changes in the InverseGammaOperator
I did some changes in the InverseGammaOperator in order to have some convenience functions for debugging namely:
- one can simply return (if mathematically existent) the
- one can use the mode and the mean in order to initialize the InverseGammaOperator by setting
Noneand setting the values for mode and mean. IMHO this can help a lot to find better values for alpha and q since these are sometimes hard to set.