Message-ID: <43993341.6020705@statistik.uni-dortmund.de>
Date: 2005-12-09T07:33:21Z
From: Uwe Ligges
Subject: help with simple 3d graph
In-Reply-To: <1134100972.19361.249390648@webmail.messagingengine.com>
Frank Johannes wrote:
> I have a large matrix and want to create a 3d surface of it.
> Suppose the matrix looks something like Matrix K:
> a<-c(1:1200)
> b<-c(rep(1:30,40))
> c<-c(a+b^2)
> K<-data.frame(a,b,c)
> The vector values are not ordered (and repeat themselves as in b).
> Whenever I try commands like "persp" it wants ordered values.
> The only command that approximates what I want is "scatterplot3d"
> (see
> below)
> library(scatterplot3d)
> scatterplot3d(a,b,c)
For a surface, see ?persp or ?wireframe in package "lattice".
Uwe Ligges
> Can anybody help me with this. Thanks very much.
> Frank.
>
> --
>
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