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.
