On Nov 12, 2009, at 4:59 AM, Bob O'Hara wrote:
I have a simple (!) problem. What I want to do is to create a
legend with
Greek letters, and substituting numbers into the legend. Like this:
mu=1:3
Mean=rep(mu, each=20)
plot(runif(60), rnorm(60,Mean,0.1), pch=Mean) # create a plot
legend(0.6,1.7, paste("mu =", 1:3), pch=mu)
but with a Greek letter mu.
# First:
library(fortunes)
fortune("dog")
Searching in R-search reveals that Bill Dunlap has offered a few
solutions to prior such questions. This is an adaptation of the
shortest solution from:
http://finzi.psych.upenn.edu/Rhelp08/2009-August/209677.html
mu1=1:3 #
Mean=rep(mu1, each=20)
plot(runif(60), rnorm(60,Mean,0.1), pch=Mean) # create a plot
legend(0.6,1.7, as.expression(lapply(mu1, function(m) bquote(mu==.
(m)))), pch=mu1)
--
David
I think the solution has something to do with substitute() possibly
along
with and eval(), paste() and probably a few other functions. But
the help
page is remarkably unhelpful: it seems to have been written for
people who
work with the underlying code, and not for us mere mortals. Could
someone
explain how to do this?
Bob
--
Bob O'Hara
Biodiversity and Climate Research Centre
Senckenberganlage 25
D-60325 Frankfurt am Main,
Germany
Tel: +49 69 798 40216
Mobile: +49 1515 888 5440
WWW: http://www.RNI.Helsinki.FI/~boh/
Blog: http://network.nature.com/blogs/user/boboh
Google Wave: rni....@googlewave.com
Journal of Negative Results - EEB: www.jnr-eeb.org
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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