Sorry for making a mistake! It should be, (m...@deviance["wrss"]...@deviance["wrss"])/m...@deviance["wrss"]
willow1980 wrote: > > Hi, Fabio, > I only have an idea on how to calculate deviance explained by the fixed > effects. If you remove fixed effects and introduce one null model such as > m2<-lmer(response-var ~ 1+(1|Site/Area/Transect),family="binomial"). Then, > (deviance(m2)-deviance(m1))/deviance(m2) will represent deviance explained > by fixed effects in m1. Hope this makes some sense. > Best regards, > Jianghua > > > Fabio Bulleri wrote: >> >> Dear all, >> I am trying to calculate some measure of the amount of variability in the >> response variable that is explained by a model fitted in lmer >> m1<-lmer(response-var ~ >> Condition+(1|Site/Area/Transect),family="binomial") . >> I've seen from the literature that the precentage of explained deviance >> is a common measure. How can I calculate it? >> Thanks a lot for your help, I hope this is not too shallow. >> Best >> Fabio >> ------------------------------------------------------------------------------ >> Fabio Bulleri, PhD >> Dipartimento di Biologia >> Università di Pisa >> Via A. Volta 6, I-56126, Pisa, Italy >> Tel. +39 050 2211448 >> Fax +39 050 2211410 >> [[alternative HTML version deleted]] >> >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> >> > > -- View this message in context: http://old.nabble.com/Calculating-the-percentage-of-explained-deviance-in-lmer-tp26286427p26457755.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
