[R] x y plot with z coordinate scaling to a color value
p.hiemstra at geo.uu.nl
Wed May 19 12:49:22 CEST 2010
You can have a look at image(), or alternatively look at spplot. The
latter assumes that you have your data structured according to the
spatial R classes that the sp-package provides:
# transform to sp-object
gridded(meuse.grid) = ~x+y
On 05/19/2010 12:24 PM, Jannis wrote:
> before I start programming my own function I would like to ask you whether there is any function already available that lets me plot a x/y plot with the colors of the points determined by scaling a third variable z into a defined colorramp?
> Until now I am using a wild combination of functions to create a colorvector by hand, then calling
> and then using color.legend() from plotrix to add a colorbar. Is there anything where I can just call (for example)
> and get a plot and a colorbar next to it?
> If not I have to program that myself because my current way involves a lot of steps and readjusting plotting regions.
> Thanks for your help!
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
P.O. Box 80.115
3508 TC Utrecht
Phone: +3130 274 3113 Mon-Tue
Phone: +3130 253 5773 Wed-Fri
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