[R] substitution in expression

[Wolski]

Hi!

Sorry for the previous mail.
Take a look at parse.

?parse
x<-"my"
plot(1:10, main=parse(text=x))

Eryk.

*********** REPLY SEPARATOR  ***********

On 9/6/2004 at 3:50 PM Adaikalavan Ramasamy wrote:

>>>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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>>>R-help at stat.math.ethz.ch mailing list
>>>https://stat.ethz.ch/mailman/listinfo/r-help
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Dipl. bio-chem. Witold Eryk Wolski             @         MPI-Moleculare Genetic   
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