Please, need help with a plot

although the code somehow didn't work on my Vista / R 2.8,
it did work perfectly on a XP machine / R 2.10
An when you update both machines to a recent R-2.12.1 you will find how 
much more will work in the end!

Uwe Ligges
I've been trying to fix this for days,
Thank you very much for your help!

______________________________________________________________________

02/01/2011 19:30, David Winsemius<  dwinsemius at comcast.net>  wrote:

On Jan 2, 2011, at 1:15 PM, Ben Bolker wrote:

This is a little bit more 'magic' than I would like, but seems
to work. Perhaps someone else can suggest a cleaner solution.

Here's the best I could come up with but will admit that there were
many failed attempts before success:

expr.vec<- as.expression(parse(text=table1$var1))
plot(x=table1$var2 ,y=1:11, xlim=c(0,20), pch=20)
text(x=table1$var2, y=1:11, labels=expr.vec, pos=4)
title(x=15, y=5, expression("Yet another way to process strings with
operators like '<=' )

(The title expression works on my machine, but perhaps not on the OP's
machine, given differences in encoding that have so far been exhibited.)

ages<- gsub("[^0-9]+","",table1$var1)
rel<- gsub("age\\s*([=<>]+)\\s*[0-9]+","\\1",table1$var1,perl=TRUE)

with(table1,plot(var2,1:11,xlim=c(0,20),pch=20))
invisible(with(table1,
mapply(function(x,y,a,r) {
text(x=x,y=y,
switch(r,
`<=`=bquote(age<= .(a)),
`<`=bquote(age<  .(a)),
`>=`=bquote(age>= .(a))),
pos=4)},
var2,1:11,ages,rel)))

______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
West Hartford, CT

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Please, need help with a plot

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