[R] plot history, libraries, weights
Prof Brian D Ripley
ripley at stats.ox.ac.uk
Mon Sep 4 19:41:28 CEST 2000
On Mon, 4 Sep 2000, Charles Raux wrote:
> 3 general questions:
> 1) How can I have the plot History Recording automatically turned on
> each time I start R (Windows)?
You can't. We'll treat that as an enhancement request. It's actually a
per-device switch, so it could be part of the windows() function
> 2) How can I have some libraries automatically loaded at R start?
Use .Rprofile. See ?Startup
> 3) As far as I know weights can be specified only for lm. How can I
> take account of weights with a weighted sample in other models or
> functions (table but also other multivariate and cluster techniques)?
It can be specified for lots of modelling functions. Beware though, that
what `weights' means needs careful definition, and Stata (I believe)
manages to have four kinds of weights. In regression weights=4
could mean `I have four of these cases' or `give this case weight 4
in weighted LS', for example. Fortunately in regression it rarely
matters, but it can do in other settings.
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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