Hi Thanks for your help - however if I have a model of: mod1<-lmer(B~ A+C+(A|bird), family=quasibinomial)
coef then gives me an individual slope for factors A and C. However the random effect is only nested within factor - so I am only trying to allow the slope to vary in relation to effect A Many Thanks Sam Dr Samantha Patrick EU INTERREG Post Doc Davy 618 Marine Biology & Ecology Research Centre University of Plymouth Plymouth PL4 8AA T: 01752 586165 M: 07740472719 -----Original Message----- From: Darin A. England [mailto:engl...@cs.umn.edu] Sent: 26 August 2010 16:12 To: Samantha Patrick Cc: r-help@R-project.org Subject: Re: [R] Random slopes in lmer coef(mod1)$bird will give you a matrix with two columns. The first column is the intercept for each bird and the second column is the slope for each bird. ranef(mod1) will also give you a matrix of two columns. These represent the random effects. That is, how much the intercept (or slope) is shifted from overall mean. HTH, Darin On Thu, Aug 26, 2010 at 01:15:10PM +0100, Samantha Patrick wrote: > Hi > > I want to extract the random slopes from a lmer (I am doing a random > regression), but are the answers obtained from ranef or coef? > > My model is: mod1<-lmer(B~ A +(A|bird), family=quasibinomial) > > And I want to obtain a slope for each individual bird but am not sure which > output I need and can't find the answer anywhere. > > Thanks > > Sam > > > Dr Samantha Patrick > EU INTERREG Post Doc > Davy 618 > Marine Biology & Ecology Research Centre > University of Plymouth > Plymouth > PL4 8AA > > T: 01752 586165 > M: 07740472719 > > > [[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. ______________________________________________ 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.
