On Sep 5, 2010, at 11:41 AM, John Helly wrote:
Hi.
I'm trying to get 'mu' to show up as a Greek symbol but, despite
trying every example I could find, can't get it to work. Any
insights would be welcome.
This is what I'm using that works, but displays mu with the letter u.
plotTimeXMastPAR <- qplot(DT,MastPAR, data=A, xlab = "", ylab =
quote(PAR (uE ~m^-2 ~s^-1)), geom="line") +
opts(legend.position="none")
I suppose most readers will know by now that qplot is part of ggplot2,
but it would be better manners to include the require() statement that
would identify the non-base package, as would inclusion of a working
example:
require(ggplot2)
qplot(mpg, wt, data=mtcars, ylab=expression(PAR*(mu*E~m^-2~s^-1)))
or
qplot(mpg, wt, data=mtcars, ylab=quote(PAR*(mu*E~m^-2~s^-1)))
This is an attempt to get mu to look right but it does not work. It
doesn't fail but nothing inside the expression statement gets
displayed.
plotTimeXMastPAR <- qplot(DT,MastPAR, data=A, xlab = "", ylab =
c("PAR", expression(mu, quote(E ~m^-2 ~s^-1))), geom="line") +
opts(legend.position="none")
Cheers.
--------------
John Helly, UCSD / San Diego Supercomputer Center / Scripps
Institution of Oceanography, Climate, Atmospheric Science, and
Physical Oceanography / +01 760 840 8660 mobile / stonesteps
(Skype) / stonesteps7 (iChat) / /www.sdsc.edu/~hellyj
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David Winsemius, MD
West Hartford, CT
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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