Fw: [R] Contour plot

[dhkblaszyk@zeelandnet.nl]

I understand that I need to have a (in this case) square matrix with all the
data. But the question now is;

- can the contourplot not interpolate the missing values

or alternatively

- I have fit a model to the z data (z = 100 + 0.5x + 0.5y). How can I make
from this model a "square" matrix z to make a contour plot?

Kind regards, Darius Blaszijk

----- Original Message -----
From: "Achim Zeileis" <Achim.Zeileis at wu-wien.ac.at>
To: <dhkblaszyk at zeelandnet.nl>
Cc: <r-help at stat.math.ethz.ch>
Sent: Tuesday, February 08, 2005 1:51 AM
Subject: Re: [R] Contour plot


> On Tue, 8 Feb 2005 01:15:06 +0100 dhkblaszyk at zeelandnet.nl wrote:
>
> > Hello,
> >
> > I would like to make a contourplot of the following data;
> >
> > > x <- 1:10
> > > y <- 1:10
> > > z <- 100:110
> >
> > By doing >contour(x,y,z) I get the following error;
> >
> > "Error in contour.default(x, y, z) : no proper `z' matrix specified"
> >
> > How do I fix this??
>
> x and y specify a grid and thus z must provide a value for each
> combination of the x's and y's! For example:
>   x <- y <- 1:10
>   contour(x, y, outer(x, y))
> Also look at
>   outer(x, y)
> and read ?contour.
>
> Z
>
> > Kind regards, Datius Blaszijk
> >
> > [[alternative HTML version deleted]]
> >
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