statsmodels.discrete.count_model.ZeroInflatedPoisson.loglikeobs¶

ZeroInflatedPoisson.loglikeobs(params)¶

Loglikelihood for observations of Generic Zero Inflated model.

Parameters:¶

paramsarray_like

The parameters of the model.

Returns:¶

loglikendarray

The log likelihood for each observation of the model evaluated at params. See Notes for definition.

Notes

\[\ln L=\ln(w_{i}+(1-w_{i})*P_{main\_model})+ \ln(1-w_{i})+L_{main\_model} where P - pdf of main model, L - loglike function of main model.\]

for observations \(i=1,...,n\)