statsmodels.tools.eval_measures.hqic_sigma

statsmodels.tools.eval_measures.hqic_sigma(sigma2, nobs, df_modelwc, islog=False)[source]

Hannan-Quinn information criterion (HQC).

Parameters:
sigma2float

estimate of the residual variance or determinant of Sigma_hat in the multivariate case. If islog is true, then it is assumed that sigma is already log-ed, for example logdetSigma.

nobsint

number of observations

df_modelwcint

number of parameters including constant

islogbool

If True, sigma2 is already log-transformed.

Returns:
hqicfloat

information criterion

Notes

A constant has been dropped in comparison to the loglikelihood base information criteria. These should be used to compare for comparable models.

References

xxx