Daniel, >> Yes I am trying to model such data, and i need R to know that Site is >> nested within Habitat. >> Do I use some kind of command before running the model (like factor() and >> so on) or do i >> write it in the model formula. If so, how?
You still are not telling the list enough, since nesting specifications are sometimes package/program specific. You could help yourself by reading some of R's basic documentation about how to specify a nested model. Then "it" will tell you what to do. ?formula Or read §11.1 of "An Introduction to R" (one of R's manuals). Regards, Mark. DanielWC wrote: > > Hi. > Yes I am trying to model such data, and i need R to know that Site is > nested within Habitat. Do I use some kind of command before running the > model (like factor() and so on) or do i write it in the model formula. If > so, how? > > Thanks > > > > Douglas Bates-2 wrote: >> >> On Fri, May 29, 2009 at 7:50 AM, DanielWC <daniel.carsten...@gmail.com> >> wrote: >> >>> Hello >>> I am working with a biological data including variables called Habitat >>> and >>> Site, example: >> >>> Habitat Site >> >>> Forest Low >>> Forest Low >>> Forest High >>> Forest High >> >>> I want to tell R that the Site variable is nested within the Forest >>> variable >>> (that it is not a new variable). >>> Does anyone know how to do this? >> >> If you could explain what you mean by "tell R", it would help. Are >> you trying to model such data and you want to know how to express the >> relationship between such factors in a model formula? >> >> ______________________________________________ >> 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://www.nabble.com/Nested-variables-tp23779402p23813539.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.
