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PoissonZiGMLE.nloglikeobs()

statsmodels.miscmodels.count.PoissonZiGMLE.nloglikeobs

PoissonZiGMLE.nloglikeobs(params) [source]

Loglikelihood of Poisson model

Parameters:

params : array-like

The parameters of the model.

Returns:

The log likelihood of the model evaluated at `params` :

Notes

$\ln L=\sum_{i=1}^{n}\left[-\lambda_{i}+y_{i}x_{i}^{\prime}\beta-\ln y_{i}!\right]$

Links:

http://statsmodels.sourceforge.net/stable/generated/statsmodels.miscmodels.count.PoissonZiGMLE.nloglikeobs.html

doc_statsmodels

2017-01-18 16:14:13

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