Hi R-help, I am a researcher fitting linear mixed models using the package nlme. I am wondering whether the sigma value that is outputted as part of the model object is standard deviation or variance? for example, I might fit a model
lme_mod <- nlme::lme(response ~ predictor1 + predictor2, random = (~1|grouping1)) I am wondering whether lme_mod$sigma is actually a standard deviation or if it's a variance. Thanks so much, Courtney [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.