Thanks, Gabor! This workaround fixes my immediate needs.

> 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

> <

[hidden email]> 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

>>

>> ______________________________________________

>>

[hidden email] 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.

>>

>

> ______________________________________________

>

[hidden email] 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.