From: Uwe Ligges (ligges@statistik.uni-dortmund.de)
Date: Sun 11 Feb 2001 - 20:03:34 EST
Message-ID: <3A866376.1EEC528B@statistik.uni-dortmund.de>
Jason Turner wrote:
>
> Hi all
>
> I'm trying to create a three-dimensional wireframe-type plot,
> much like the screenshot shown at
> http://www.r-project.org/screenshots/volcano-persp.jpg
>
> In my case, I'm trying to show a density estimate of
> two-variable system, using the GenKern package. I've
> used the image() and contour() to create a nice shaded plot,
> but I've found a 3d plot is often easier for the audience
> to absorb.
>
> The session is simple enough; dfw is a data.frame of
> two variables, pressure and flow.
>
> > library(GenKern)
> > attach(dfw)
> > ks<- KernSur(pressure,flow)
> #now, make the shaded contour plot.
> > image(ks$xvals,ks$yvals,ks$zden,col=terrain.colors(100), axes=TRUE)
> > contour(ks$xvals,ks$yvals,ks$zden,add=TRUE)
>
> Any ideas from here?
persp() ...
Uwe
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