Akaike information criterion (AIC) with small sample correction
Parameters: | sigma2 : float
nobs : int
df_modelwc : int
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Returns: | aicc : float
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Notes
A constant has been dropped in comparison to the loglikelihood base information criteria. These should be used to compare for comparable models.
References
http://en.wikipedia.org/wiki/Akaike_information_criterion#AICc