On Jun 2, 2011, at 4:19 PM, Marius Hofert wrote:
Dear Uwe,
thanks for your help. Actually, I first thought about writing your
solution in the email in order to make clear that it is not the
solution I'm looking for :-) My goal is to work with the vector
"vars" of expressions. The example is only a minimal example and for
that your solution is perfectly fine, but my original problem is
more complicated and there it makes sense to work with a vector of
expressions. Do you know a solution to that? I tried many things...
the obvious plot(0, 0, main=substitute(bold("Foo" ~~ VAR),
list(VAR=vars[2]) )) did not work...
> vars <- vector("expression", 2)
> vars[[1]] <- quote(alpha)
> vars[[2]] <- quote(beta)
> plot(0, 0, main= bquote( paste("Foo ", .(vars[[2]] )) ) )
--
DAvid.
Cheers,
Marius
On 2011-06-02, at 22:14 , Uwe Ligges wrote:
On 02.06.2011 20:43, Marius Hofert wrote:
Dear all,
I have a vector of expressions and would like to "paste" some
string to it before using it in a plot:
vars<- vector("expression", 2)
vars[1]<- expression(alpha)
vars[2]<- expression(beta)
plot(0, 0, main=substitute(bold("Foo" ~~ VAR), list(VAR=vars[2]) ))
Although I tried hard, I just can't figure out how to solve this.
The title should be "Foo<theta>", where<theta> is the greek
letter. I tried some constructions with bquote but that wasn't
successful... I also looked in the mailing list but couldn't find
anything helpful [I am sure I overlooked something].
plot(0, 0, main=expression("Foo" ~~ theta))
Uwe Ligges
Cheers,
Marius
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David Winsemius, MD
West Hartford, CT
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