# Rev Language Reference

## powerPosterior

### Usage

powerPosterior(Model model, Move[] moves, Monitor[] monitors, String filename, RealPos[] powers, Natural cats, RealPos alpha, Natural sampleFreq, Natural procPerLikelihood)

### Arguments

 model : Model (pass by value) The model graph. moves : Move[] (pass by value) The vector moves to use. monitors : Monitor[] (pass by value) The monitors to call. Do not provide a screen monitor. filename : String (pass by value) The name of the file for the likelihood samples. powers : RealPos[] (pass by value) A vector of powers. Default : NULL cats : Natural (pass by value) The number of categories if no powers are specified. Default : 100 alpha : RealPos (pass by value) The alpha parameter of the beta distribution if no powers are specified. Default : 0.2 sampleFreq : Natural (pass by value) The sampling frequency of the likelihood values. Default : 100 procPerLikelihood : Natural (pass by value) Number of processors used to compute the likelihood. Default : 1