[R] Do I need to use dropterm()??

From: DaniWells <dani_wells210_at_hotmail.com>
Date: Sun, 10 Feb 2008 05:40:08 -0800 (PST)

Hello,

I'm having some difficulty understanding the useage of the "dropterm()" function in the MASS library. What exactly does it do? I'm very new to R, so any pointers would be very helpful. I've read many definitions of what dropterm() does, but none seem to stick in my mind or click with me.

I've coded everything fine for an interaction that runs as follows: two sets of data (one for North aspect, one for Southern Aspect) and have a logscale on the x axis, with survival on the y. After calculating my anova results i have all significant results (ie aspect = sig, logscale of sunlight = sig, and aspect:llight = sig).

When i have all significant results in my ANOVA table, do i need dropterm(), or is that just to remove insignificant terms?

Many thanks,

Dani

-- 
View this message in context: http://www.nabble.com/Do-I-need-to-use-dropterm%28%29---tp15396151p15396151.html
Sent from the R help mailing list archive at Nabble.com.

______________________________________________
R-help_at_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.
Received on Sun 10 Feb 2008 - 14:11:50 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Mon 11 Feb 2008 - 01:30:13 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive