[R] ordiellipse

From: Andrew Halford <andrew.halford_at_gmail.com>
Date: Thu, 26 May 2011 15:53:47 +1000


Hi Users,

I am trying to plot 95% confidence ellipses around the 4 groupings found in a PCA ordination and identified a-priori by clustering. I am using ordiellipse to plot the ellipses and it works fine except one of my groups contains only 2 sites and I cannot get an ellipse around them. I'm assuming that 2 points is not enough to perform the relevant calculations here, however I would like to plot one if I could, if only for the sake of pictorial consistency.

Andy

-- 
Andrew Halford Ph.D
Associate Research Scientist
Marine Laboratory
University of Guam
Ph: +1 671 734 2948

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Received on Thu 26 May 2011 - 05:58:36 GMT

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