Ronaldo Reis Jr. wrote: > I know that is not possible make a stepwise procedure using REML in R, I can > use ML for this. > For nested design it may be very dangerous due the difference in variance > structure, mainly in a splitplot design. ML make significative variables that > REML dont make. > I read an article that is made a stepwise procedure using GENSTAT. > All are made using REML.
One can always compare models in a hierarchical type fashion (providing they can be nested). The LRTS comparing models fitted via REML may not be chi-square. -- | David Duffy (MBBS PhD) ,-_|\ | email: [EMAIL PROTECTED] ph: INT+61+7+3362-0217 fax: -0101 / * | Epidemiology Unit, Queensland Institute of Medical Research \_,-._/ | 300 Herston Rd, Brisbane, Queensland 4029, Australia GPG 4D0B994A v ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
