[Rd] expression(pi) produces not-equal symbol in X11 plot
Perry de Valpine
pdevalpine at berkeley.edu
Fri Feb 19 17:54:25 CET 2010
On R 2.10.1 on OS X (10.6.2) using an X11() device,
plot(1:10, 1:10, main = expression(pi))
makes a not-equal symbol instead of a pi symbol.
Other Greek letters (including capital Pi) seem to work. On a quartz device the pi symbol is displayed correctly.
I don't know if the issue is on the R side, but I post it here in case anyone knows where to go with it.
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