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ff000002
2008 Apr 22
2
Getting rid of borders on semi-transparent plotting symbols
R version 2.7.0 RC (2008-04-20 r45403)
When using semi-transparent filled plotting symbols, the border of the
symbol has a different (darker) colour than the interior:
plot(0, 0, pch=19, col="#FF000022")
(Saving this as a PDF and looking at it magnified may make it easier to
see.)
This is pretty annoying, since when plotting partially overlapping
points, the border colour dominates, making the colour of overlapping
points more saturated than they should be.
This isn't so much of a p...