Poisson.loglikeobs()

statsmodels.discrete.discrete_model.Poisson.loglikeobs

Poisson.loglikeobs(params) [source]

Loglikelihood for observations of Poisson model

Parameters:

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

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

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

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

© 2009–2012 Statsmodels Developers
© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.discrete.discrete_model.Poisson.loglikeobs.html