[R] substitution in expression
Adaikalavan Ramasamy
ramasamy at cancer.org.uk
Mon Sep 6 16:50:01 CEST 2004
I have been struggling with this problem for a while and I hope someone
could help me. Or if someone could point me to a section in the manual I
would be grateful.
x <- "my"
plot(1:10, main=expression(paste( x, Delta, "values" )))
Q : How do I get the title to say "my (triangle symbol) values" ?
The following trial-and-error produced mainly errors :
plot(1:10, main=expression(paste( get(x), Delta, "values" )))
plot(1:10, main=expression(paste( substitute(x), Delta, values )))
plot(1:10, main=expression(paste( deparse(x), Delta, "values" )))
plot(1:10, main=paste(x, expression(Delta), "values"))
plot(1:10, main=paste(x, eval(expression(Delta)), "values"))
plot(1:10, main=paste(x, expression(Delta, "values" )))
plot(1:10, main=paste(x, expression(paste(Delta, "values" ))))
Many thanks.
Regards,
--
Adaikalavan Ramasamy ramasamy at cancer.org.uk
Centre for Statistics in Medicine http://www.ihs.ox.ac.uk/csm/
Cancer Research UK Tel : 01865 226 677
Old Road Campus, Headington, Oxford Fax : 01865 226 962
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