[R] Odp: plot 4th variable contour lines on filled.contour

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 02.06.2009 12:50:50:

> Hello,
> I have a dataset with 4 variables, each consisting of a vector, all with 

> the same length. I start by interpolating the first three variables 
> using the function "interp", and plot the interpolation successfully 
> using "filled.contour". I then interpolate the first two variables and a 

> fourth using "interp" again, but when I try to overlay the  contour 
> lines of this second interpolation on the first filled.contour plot, the 

> lines appear to be located wrongly on the plot, overlapping the colour 
bar!

Either use combination of image and contour or you need to get correct 
plotting area from filled.contour as it consist from 2 plots, see 
?filled.contour.

I remember this question was raised before and from search

"filled.contour overplot"

you can quickly get this answer

http://finzi.psych.upenn.edu/R/Rhelp02a/archive/2211.html

Regards
Petr


> Any light shed on this matter would be most appreciated..
> Kind regards
> Ana
> de Moura Queiros,Ana Filipa         osp402 at bangor.ac.uk
> 
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