For circles look at the symbols function. For ellipses see the ellipse package
and the my.symbols function in the TeachingDemos package.
-----Original Message-----
From: "Friedman, Steven" <sfriedma at sfwmd.gov>
To: "r-help at r-project.org" <r-help at r-project.org>
Sent: 10/1/07 7:10 AM
Subject: [R] Adding circles or ellipses to graphs
Hello,
I'm developing an ordination using metaMDS (package vegan). The analysis
identifies 3 distinct groups that I'd like to define by either adding
circles or ellipses to help identify the groups. The data set is a
spatial temporal data base depicting change in each of 4 areas over 3
time periods.
I can add lines that would link each of the time - x - area
trajectories, but I'd like to add a circle or an ellipse to these as
well.
Does anyone have any suggestions?
Steve Friedman, PhD
Everglades Division
Senior Environmental Scientist, Landscape Ecology
South Florida Water Management District
3301 Gun Club Road
West Palm Beach, Florida 33406
email: sfriedma at sfwmd.gov
Office: 561 - 682 - 6312
Fax: 561 - 682 - 5980
If you are not doing what you truly enjoy its your obligation to
yourself to change.
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