statsmodels.miscmodels.count.PoissonOffsetGMLE.nloglikeobs

PoissonOffsetGMLE.nloglikeobs(params)

Loglikelihood of Poisson model

Parameters:

paramsarray_like

The parameters of the model.

Returns:

The log likelihood of the model evaluated at params

Notes

$$\ln L=\sum _{i=1}^n[-{\lambda }_i+y_i{x}_i^{\prime }\beta -\ln y_i!]$$