Thanks for the info.
It does look like a bug to me, but it's always best to try and
identify the
cause before facing the challenge of a legitimate bug submission.
On Mac OS (same info as my first post), the duplicated "mu" is only
present
in the pdf output of pdf(), for both grid and base graphics. Cairo and
quartz don't duplicate the symbol. postscript() works fine too
(understand
'as I expect') but I haven't been able to check without converting the
file
to pdf first.
library(grid)
pdf("testPdf.pdf")
plot.new()
text(0.5,0.5, expression(mu),cex=10)
grid.newpage()
grid.text(expression(mu),gp=gpar(cex=10))
dev.off()
postscript(file="testEps.eps")
grid.newpage()
grid.text(expression(mu),gp=gpar(cex=10))
dev.off()
quartz(file="testQuartz.pdf",type = "pdf")
plot.new()
text(0.5,0.5, expression(mu),cex=10)
dev.off()
library(Cairo)
Cairo(file="testCairo.pdf",type="pdf",dpi=72)
plot.new()
text(0.5,0.5, expression(mu),cex=10)
dev.off()
system("ps2pdf testEps.eps testEps.pdf")
# not necessarily enlightening ...
#system("cat testPdf.pdf",int=T) # only this one has duplicated symbols
#system("cat testEps.pdf",int=T)
#system("cat testQuartz.pdf",int=T)
#system("cat testCairo.pdf",int=T)
2009/6/30 Dieter Menne <dieter.me...@menne-biomed.de>
baptiste auguie-5 wrote:
pdf()
plot(1, xlab=expression(mu))
dev.off()
If I open this pdf in Illustrator CS4, there are two "mu" on top of
each
other, giving it a somewhat bold aspect. Other characters not from the
symbol font are just output in one version. I'm guessing this may be
very
much dependent on my config, which is,
sessionInfo()
R version 2.9.0 (2009-04-17)
i386-apple-darwin9.6.0
I was able to reproduce this on Windows. When you open the file with
notepad, you will notice duplicate lines just above the endstream:
BT
0.000 0.000 0.000 rg
/F6 1 Tf 12.00 0.00 -0.00 12.00 262.94 18.52 Tm (m) Tj
ET
When you remove these, problem is gone. I would consider this a bug,
but do
not dare to call it one.
Dieter
R version 2.9.0 (2009-04-17)
i386-pc-mingw32
locale:
LC_COLLATE=German_Germany.1252;LC_CTYPE=German_Germany.1252;LC_MONETARY=German_Germany.1252;LC_NUMERIC=C;LC_TIME=German_Germany.1252
attached base packages:
[1] stats graphics grDevices datasets utils methods base
loaded via a namespace (and not attached):
[1] tools_2.9.0
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