summary() after changing contrasts

You might take a look in he car package. if I recall correctly, it includes some 'pretty' versions of contrasts that tidy up the displayed format.

S Ellison
-----Original Message-----
From: r-help-bounces at r-project.org 
[mailto:r-help-bounces at r-project.org] On Behalf Of Daniel Weitzenfeld
Sent: 09 August 2012 22:08
To: r-help at r-project.org
Subject: [R] summary() after changing contrasts

Hi,
After running a regression on a factor variable, summary() 
reports the coefficients 'nicely,' ie, labelled with a string 
that is a concatenation of the variable name and the factor label.
However, changing the base case a la

contrasts(variable)<-contr.treatment(N, base=x)

results in the coefficients being reported as a less-helpful 
concatenation of variable name plus a digit.

Of course, it's possible to map the digit to the appropriate 
factor label, but I'm wondering if there's an easy fix...
-Dan

	[[alternative HTML version deleted]]

______________________________________________
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.

*******************************************************************
This email and any attachments are confidential. Any use...{{dropped:8}}

summary() after changing contrasts

Thread (2 messages)