From nalimilan at club.fr  Tue Oct 30 10:25:56 2012
From: nalimilan at club.fr (Milan Bouchet-Valat)
Date: Tue, 30 Oct 2012 10:25:56 +0100
Subject: [Rd] contr.sum() and contrast names
In-Reply-To: <web-429728255@cgpsrv2.cis.mcmaster.ca>
References: <1351337946.21857.130.camel@milan>
	<web-429728255@cgpsrv2.cis.mcmaster.ca>
Message-ID: <1351589156.21857.162.camel@milan>

Le samedi 27 octobre 2012 ? 10:44 -0400, John Fox a ?crit :
> Hi Milan,
> 
> Take a look at the contr.Sum() and contr.Treatment() functions in the
> car package.
Yeah, this is the kind of function I had in mind. Just that I think we
should have an equivalent in the base packages.

> (I recall, BTW, the sometimes acrimonious previous discussion of this
> issue.)
I could not find this discussion, do you have any pointer?

Anyways, going deeper and deeper into the archives, I've found you made
the same proposal almost exactly 10 years ago[1]! Oddly enough, it only
prompted one reply at the time - has the rest of the discussion been
removed from the archives because it was too rude? ;-) Should we reopen
the debate now that some time has been spent without actions being taken
on that front?


Regards

1: http://tolstoy.newcastle.edu.au/R/devel/02b/0878.html



[Rd] contr.sum() and contrast names
Milan Bouchet-Valat