2 messages · DanielWC, Douglas Bates
Hello Im 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? Thanks alot Daniel W. Carstensen Denmark
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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?