[R] coplots

[Prof Brian D Ripley]

On Mon, 4 Mar 2002, Kyriakos Kachrimanis wrote:

>
>
> Hello list members,
>
> I am new to this list and don't know very much about what R can do or how to
> program it, but I am interested in plotting 4 variables as sequential
> contour plots (or surface plots), something like the conditioning plots for
> 4 variables (coplot(X1~X2|X3+X4)). To be more specific, I need a tool that
> will automatically create contour (orsurface) plots of X1 vs X2 vs X3 for
> different intervals of X4.
> Is there a 3-D equivalent to the coplot command, or does anybody have
> implemented something like that?

Coplot is an older version of the functionality in the lattice package.
(`Trellis' in S terms.)   You could use levelplot for image plots.
Trellis has contourplot, but lattice does not yet (some versions had a
non-functioning contourplot function).

-- 
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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