[R] the name of the statistical notation in R
ripley at stats.ox.ac.uk
Tue Jul 2 19:34:25 CEST 2002
On 2 Jul 2002, Adrian Custer wrote:
> Hey everyone,
> I know I've come across this somewhere, in either the blue or white
> books or in one of the help docs but I can't put my hand on it.
> What's the name of the statistical notation used in R?
> responseVar ~ anExplantory:anotherExplantory + thridExplantory
> Is this part of a coherent framework of notation that is as applicable
> to models which are not generalized linear models as to glms?
Yes (and it comes from linear models). It is a (slightly) modified
version of Rogers-Wilkinson notation
author = "G. N. Wilkinson and C. E. Rogers",
title = "Symbolic description of factorial models for analysis of
journal = "Applied Statistics",
volume = "22",
pages = "392--399",
year = "1973",
comment = "Reference from MASS",
also used by Genstat and GLIM.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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