a desired row number in summary for which the information criterion is calculated. The default value is 1.
...
currently not used.
References
H. Akaike. A new look at the statistical model identification. IEEE Transactions on Automatic Control, 19(51):716-723, 1974.
A. F. M. Smith and D. J. Spiegelhalter. Bayes factors and choice criteria for linear
models. Journal of the Royal Statistical Society. Series B, 42(2):213-220, 1980. http://www.jstor.org/stable/2984964.
C. M. Hurvich and C.-L. Tsai. Regression and time series model selection in small samples. Biometrika,
76(2):297-307, 1989. http://www.jstor.org/stable/2336663.
H. Bozdogan. Model selection and akaike's information criterion (aic): The general theory and its
analytical extensions. Psychometrika, 52(3):345-370, 1987. http://dx.doi.org/10.1007/BF02294361.