Dear R Helpers:
I am trying to annotate a plot. The following code snippet works, but it is
kind of a kludge since it adds the partial derivative symbols after creating
the plotmath frac(). Is there a more elegant way to write a partial
derivative?
dev.off()
plot(NA, xlim=c(-3,3), ylim=c(0,1.6), xlab="", ylab="", tck=-0.015)
text(1.6, 1, expression(paste("slope = ", frac(paste(" f( ", hat(theta),
" )"), hat(theta))), sep=""), adj=0)
text(2.25, 1.03, "\\pd", vfont=c("sans serif","plain"))
text(2.3, 0.934, "\\pd", vfont=c("sans serif","plain"))
Thanks.
Charles Annis, P.E.
[EMAIL PROTECTED]
phone: 561-352-9699
eFax: 614-455-3265
http://www.StatisticalEngineering.com
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