[R] Adding circles or ellipses to graphs
Greg.Snow at intermountainmail.org
Mon Oct 1 17:12:27 CEST 2007
For circles look at the symbols function. For ellipses see the ellipse package and the my.symbols function in the TeachingDemos package.
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
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
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
Does anyone have any suggestions?
Steve Friedman, PhD
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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