Hi all,

I would like to know how the BIC criterion is calculated for models estimated using gls( ) function. I read in Pinheiro & Bates (2000) p84 that 
BIC = -2logL + npar*log(N) (for the ML method), or
BIC = -2logLR + npar*log(N-p) (for the REML method)
but when I use any of these formulae I don't obtain the result given by R. 

Thanks in advance for any help.

Eve CORDA
Office national de la chasse et de la faune sauvage 
(http://www.oncfs.gouv.fr)
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78612 Le Perray en Yvelines Cedex
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Phone: +33 (0)1 30 46 60 64
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e.corda@oncfs.gouv.fr


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