[R-sig-eco] scatter plot of coordinates

[Tammy Wilson]

Hi Julia,

I have found that the easiest way to display geographic data in R is
to use a projected coordinate system (like Universal Transverse
Mercator). You can then use plot (x,y) to display a scatterplot of
your points.
The resulting map isn't pretty, but it lets you visualize the data.
The following packages have limited cartographic and map projection
capabilities: maps, mapproj, maptools

Also, the GIS program GRASS is free and quite functional.
http://grass.osgeo.org/

Tammy

On Wed, Jan 27, 2010 at 2:28 AM, Julia Tchernova <tchernova at npolar.no> wrote:
> Hello!
> I have a dataset with the date and positions -  Lat and Long columns
> How do I make a scatter  plot?
> Do I have to cbind the Lat and Long columns?
> Any suggestions will be much appreciated!
> Thank you
> Julia
>
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-- 
Tammy L. Wilson
Doctoral Candidate
Department of Wildland Resources
Utah State University
5230 Old Main Hill
Logan, UT 84322-5230
t.w at aggiemail.usu.edu
435.797.3892