Re: [Rd] Getting hold of a package's environment from C code

On Sun, 22 Oct 2006, Deepayan Sarkar wrote: > On 10/22/06, Duncan Murdoch <[EMAIL PROTECTED]> wrote: >> On 10/22/2006 3:56 PM, Deepayan Sarkar wrote: >>> Hi, >>> >>> I have a package where I'm calling an R function (say "foo") from C >>> code. "foo" is in the same package, but is not exported. I c

Re: [Rd] Changing function arguments

Try this. If the first arg of FUN is x then it increments it. incrx <- function (e) { is.node <- function(x) is.symbol(x) || is.double(x) if (is.node(e)) return(e) if (is.name(e[[1]]) && e[[1]] == as.name("FUN") && names(e)[2] == "x") e[[2]] <- e[[2]] + 1 for (i in 1:lengt

Re: [Rd] Getting hold of a package's environment from C code

Seth Falcon <[EMAIL PROTECTED]> writes: > Perhaps: > > R_FindNamespace(mkString(where)) Sorry, this won't help you for package-level code as this function is part of the internal use only API. It would be nice to have access to it or a similar function from C in package code. ___

Re: [Rd] Getting hold of a package's environment from C code

"Deepayan Sarkar" <[EMAIL PROTECTED]> writes: > On 10/22/06, Duncan Murdoch <[EMAIL PROTECTED]> wrote: >> In R code, you could use getNamespace("pkg") to get the namespace >> environment. I haven't tried this, but I'd assume >> >> PROTECT(rho = eval(lang2(install("getNamespace"), >>

Re: [Rd] Changing function arguments

See ?body ?parse ?deparse ?gsub > foo <- function(x) x+.1 > bar <- function(y) y+foo(x=1) + foo(x=2) > bar(1) [1] 4.2 > body(bar) y + foo(x = 1) + foo(x = 2) > body(bar) <- parse(text=gsub("x[ ]*=[ ]*([0-9])","x = 1 + > \\1",deparse(body(bar > bar(1) [1] 6.2

[Rd] Changing function arguments

R-Developers, I'm looking for some help computing on the R language. I'm hoping to write a function that parses a language or expression object and returns another expression with all instances of certain argument of a given function altered. For instance, say I would like my function, myFun to ta

[Rd] utils::methods doesn't list methods of 'hidden' generics

Hi all. I've seen that, on my R installation, utils::methods doesn't list methods of generics whose name begins with a dot, and I can't see that mentioned in utils::methods help page. Antonio. # > .foo <- function(x, ...) UseMethod(".foo") > .foo.bar <- fun

Re: [Rd] Getting hold of a package's environment from C code

On 10/22/2006 3:56 PM, Deepayan Sarkar wrote: > Hi, > > I have a package where I'm calling an R function (say "foo") from C > code. "foo" is in the same package, but is not exported. I construct > the call using lang1(install("foo")), but to eval it I need the > package's environment. Is there a

[Rd] Getting hold of a package's environment from C code

Hi, I have a package where I'm calling an R function (say "foo") from C code. "foo" is in the same package, but is not exported. I construct the call using lang1(install("foo")), but to eval it I need the package's environment. Is there a way to do this? Passing the correct environment through .C

Re: [Rd] Getting hold of a package's environment from C code

On 10/22/06, Duncan Murdoch <[EMAIL PROTECTED]> wrote: > On 10/22/2006 3:56 PM, Deepayan Sarkar wrote: > > Hi, > > > > I have a package where I'm calling an R function (say "foo") from C > > code. "foo" is in the same package, but is not exported. I construct > > the call using lang1(install("foo")