Dear list-members, a model is fit with lmer, but I want to force the variance parameter values to be as defined by me
I thought, use 'start' to specify initial values and only allow for one iteration ? my question is how to do that ? to specify the 2x2 matrix of variance parameter values: start=list(groups=array(2,-0.5,1),dim=c(2,2)) now I need to make sure the mean structure is estimated, while the variance parameter values are kept constant ?? e.g. lmer(resp~pred1+pred2+(1 + pred1|groups),start=list(groups=array(2,-0.5,1),dim=c(2,2)),....) cheers, Wilfried Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm ______________________________________________ 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.
