[R] Defining factors in GLM

[Dimitrios Rizopoulos]

look at

?factor
?formula
?data.frame


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://www.student.kuleuven.be/~m0390867/dimitris.htm


Quoting Tim Sippel <tsippel at gmail.com>:

> I've a set of data to run a GLM on and am having trouble defining the
> categorical variables.  For example, one of my variables is Year (ie. 1998,
> 1999).  How do I define those years as factors/categorical variables?
>
> Cheers,
>
> Tim
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>
>



Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm