[R] Contour plot for arbitrary (x,y,z)

Petr Pikal petr.pikal at precheza.cz
Thu Aug 14 08:55:49 CEST 2003


On 13 Aug 2003 at 12:25, Ronnen Levinson wrote:

> Hello.
> Is there an easy-to-use contour plot function analogous to
> scatterplot3d that can draw handle a dataset of arbitrary (x,y,z)
> triplets? That is, say x, y, and z are each measured quanties, and
> exhibit neither order nor regularity.


#provided you do not have missing data


if some of your data are missing, you have to filter it out e.g. by complete.cases()

> I looked at the lattice package function "contourplot" but it seems
> complicated, and it's not clear from the documentation whether it can
> handle arbitrary (x,y) values. I'm looking for something like the base
> package "contour" function that does not make any assumptions about
> (x,y,z).
> Thanks,
> Ronnen.
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CheersPetr Pikal
petr.pikal at precheza.cz
p.pik at volny.cz

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