# statsmodels.discrete.discrete_model.Poisson.loglikeobs¶

Poisson.loglikeobs(params)[source]

Loglikelihood for observations of Poisson model

Parameters: params (array-like) – The parameters of the model. loglike – The log likelihood for each observation of the model evaluated at params. See Notes array-like

Notes

$\ln L_{i}=\left[-\lambda_{i}+y_{i}x_{i}^{\prime}\beta-\ln y_{i}!\right]$

for observations $$i=1,...,n$$