From david.clayton at cimr.cam.ac.uk  Fri Feb 18 13:53:11 2005
From: david.clayton at cimr.cam.ac.uk (david.clayton@cimr.cam.ac.uk)
Date: Fri Feb 18 13:53:20 2005
Subject: [Rd] contrasts (PR#7695)
Message-ID: <20050218125311.8E4558E5D@slim.kubism.ku.dk>

Full_Name: David Clayton
Version: 2.0.1
OS: Linux
Submission from: (NULL) (131.111.126.242)


Setting contrasts for a factor to be used in a model by 

contrasts(fact, how.many) <- mat

where mat is a matrix does not coerce mat into storage mode "double". The
resultant model.matrix is garbage.


[Rd] contrasts (PR#7695)
david.clayton@cimr.cam.ac.uk