1.2.13.1.13. statsmodels.api.Poisson.loglikeobs¶
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Poisson.
loglikeobs
(params)[source]¶ Loglikelihood for observations of Poisson model
Parameters: params : array-like
The parameters of the model.
Returns: loglike : ndarray (nobs,)
The log likelihood for each observation of the model evaluated at params. See Notes
Notes
\[\ln L_{i}=\left[-\lambda_{i}+y_{i}x_{i}^{\prime}\beta-\ln y_{i}!\right]\]for observations \(i=1,...,n\)