[R] drawing ellipses
brostaux.y at fsagx.ac.be
Wed Jun 19 09:04:50 CEST 2002
First I want to thank all the people who answered my question about line
width in graphs. I promise I will learn the 'par' help page by heart for
the end of the month !
I now want to trace some ellipses to emphasize groups of data. I found how
to trace circles with 'symbols()', but no ellipse. I'm planning on writing
my own function based on 'polygon()' and the ellipse equation. Does anybody
already have done similar work or have another solution ?
Ir. Yves Brostaux - Statistics and Computer Science Dpt.
Gembloux Agricultural University
8, avenue de la Faculté B-5030 Gembloux (Belgium)
Tél : +32 (0)81 62 24 69
E-mail : brostaux.y at fsagx.ac.be
Web : http://www.fsagx.ac.be/si/
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