[R] Surface graph.
andy_liaw at merck.com
Thu Dec 9 00:31:01 CET 2004
> From: Roger Bivand
> On Wed, 8 Dec 2004, Bang wrote:
> > What package/code could I use to create a 3-d surface graph
> of the predicted
> > values over two of the explanatory variables' coefficients?
> I think you'll need the surface first, for example from
> interp() in the
> akima package, then visualise with persp() or perhaps
> rgl.surface() in
> package rgl.
But wouldn't it be better to predict on a regular grid, and graph that, than
to interpolate an irregular set of predicted values (assuming the model is
available such that prediction at any point is possible)?
> > Jim
> > James Bang
> > Department of Economics
> > University of Illinois
> > Well I AM missing the back of my head.you COULD cut me a
> little slack!
> > -Homer Simpson
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide!
> Economic Geography Section, Department of Economics,
> Norwegian School of
> Economics and Business Administration, Breiviksveien 40,
> N-5045 Bergen,
> Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
> e-mail: Roger.Bivand at nhh.no
> R-help at stat.math.ethz.ch mailing list
> PLEASE do read the posting guide!
More information about the R-help