How about this:
search.path <- function(fn,
paths = strsplit(Sys.getenv("PATH"), split = ";")[[1]],
fsep = "\\") {
for(d in paths) {
f <- file.path(d, fn, fsep = fsep)
if (file.exists(f)) return(f)
}
return(NULL)
}
source(search.path("myscript.R"))
Shin, Daehyok <sdhyok <at> email.unc.edu> writes:
:
: Considering replies to my question, typical practices of R users seem:
: 1. Creating a special function to source frequently used scripts.
: 2. Creating a personal package containing frequently used scripts.
:
: Both of them needs additional steps to edit the function or to
: create/install the package
: when a script file is edited or added. My suggestion can save the effort.
: In the sense to make R more convenient environment to users, is it trivial?
:
: Daehyok Shin
:
: > -----Original Message-----
: > From: Roger D. Peng [mailto:rpeng <at> jhsph.edu]
: > Sent: Saturday, July 10, 2004 PM 11:14
: > To: sdhyok <at> email.unc.edu
: > Cc: Liaw, Andy; R, Help
: > Subject: Re: [R] where does R search when source()?
: >
: >
: > In fact, there is an elegant solution, and that is to write a
: > package. If this is all for personal use, then writing a package
: > can be as simple as creating a few directories, copying the
: > script files, and then running R CMD INSTALL. I do this all the
: > time when I have multiple projects that use the same code.
: >
: > -roger
: >
:
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