Message-ID: <x2u2xnqjzk.fsf@blueberry.kubism.ku.dk>
Date: 1999-01-19T16:56:47Z
From: Peter Dalgaard
Subject: r-help[Q]: use of `expression' in annotation
In-Reply-To: Alex Buerkle's message of Tue, 19 Jan 1999 10:04:31 -0500 (EST)
Alex Buerkle <cbuerkle at bio.indiana.edu> writes:
> I would like petstring to contain r[rho*p] = peti, where peti is the corr.
> coefficient that would vary across panes in the figure. I have tried
> various combinations of paste and expression and have not hit on the right
> combination (instead I usually get peti as a literal rather than a
> variable).
Consider the following:
plot(0:11,type='n')
for (x in 1:10)
text(x,x,as.expression(substitute(r[rho*p] == peti,list(peti=x/10))))
[which probably also indicates that the as.char.or.expr() function
used inside text() could use modification! The as.expression bit
should be avoidable on objects of mode call.]
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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