Thanks, Gabor! This workaround fixes my immediate needs.
--sundar
Gabor Grothendieck said the following on 10/1/2008 10:42 PM:
That may be a bug in R but I think there is another problem on top of that
as I don't think bquote descends into function bodies:
z <- 2
bquote(function(x) {x^.(z)})
function(x) {x^.(z)}
bquote(function(x, y) { x^.(z) + y})
function(x, y) { x^.(z) + y}
R.version.string # Vista
[1] "R version 2.7.2 (2008-08-25)"
Try it this way:
z <- 2
f <- function(x, y) {}
body(f) <- bquote({ x^.(z) + y })
eval(f)(2, 3)
On Thu, Oct 2, 2008 at 1:14 AM, Sundar Dorai-Raj
<[EMAIL PROTECTED]> wrote:
Hi, R-help,
(sessionInfo at the end)
I'm trying to construct a function using bquote and running into a strange
error message. As an example, what I would like to do is this:
z <- 2
eval(bquote(function(x, y) { x^.(z) + y }))(2, 3)
However, I get the following:
Error in eval(expr, envir, enclos) :
invalid formal argument list for "function"
However, if I change the command to following, it works:
z <- 2
eval(bquote(function(x) { x^.(z) }))(2)
# [1] 4
In other words, I remove the second argument. Is there a workaround for this
without using eval(parse(text = ))?
Thanks,
--sundar
sessionInfo()
R version 2.7.2 (2008-08-25)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
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______________________________________________
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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.
