localcran <- length(grep("^file:", contriburl)) > 0
if (!localcran) {
if (is.null(destdir)) {
tmpd <- tempfile("Rinstdir")
if (!dir.create(tmpd))
stop("Unable to create temp directory ", tmpd)
}
else tmpd <- destdir
}
foundpkgs <- download.packages(pkgs, destdir = tmpd, available = available,
contriburl = contriburl, method = method)
So if `localcran' is TRUE (which in this case, it is), then `tmpd' never gets defined but is passed to download.packages().
When I run a traceback() after getting the error from running install.packages(), it fails in download.packages() when trying to create the download directory.
For example, try defining `tmpd' in your workspace and the run install.packages. This works for me:
tmpd <- "~/tmp"
install.packages("bzTools", contriburl = "file:c:/Rlibs/build")Of course, you still need the PACKAGES file in the contriburl directory.
-roger
John Fox wrote:
Dear Duncan,
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Duncan Murdoch
Sent: Thursday, July 15, 2004 9:56 AM
To: John Fox
Cc: [EMAIL PROTECTED]
Subject: Re: [R] contriburl argument to install.packages
On Thu, 15 Jul 2004 10:09:46 -0400, "John Fox" <[EMAIL PROTECTED]> wrote :
Dear list members,
I can't figure out how to specify the contriburl argument to
install.packages() properly when the packages to be
installed are in a
directory on my local machine. I have in mind a command
something like
install.packages(missing.packages, contriburl=directory, lib=.libPaths()[1])
Where missing.packages is a character vector of package
names (without
versions) and directory is the location where they reside (less PACKAGES, I guess). I'm using R version 1.9.1 on a Windows
XP machine.
Several variations on directory <- "file:c:/temp" don't seem to work.
Any help would be appreciated.
You need a file called PACKAGES in the same directory as the packages, which contains the package information; for example
http://www.cran.mirrors.pair.com/bin/windows/contrib/1.9/PACKAGES
I imagine the CRAN maintainers have scripts to produce this from the package files, but I'm not sure where they are.
To refer to a local version of this file, use the syntax you had, e.g.
CRAN.packages(contriburl="file:c:/temp")
will look for c:/temp/PACKAGES and display the information in it.
I had already tried this, and it doesn't appear to work for me. For example,
> CRAN.packages(contriburl="file:c:/temp")
Error in file(file, "r") : unable to open connection
In addition: Warning message: cannot open file `c:/temp/PACKAGES'
I *do* have a directory c:\temp\PACKAGES
Regards, John
If you don't want to maintain this file, then you can construct the information in it using the "available=" argument to the package functions.
Duncan
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