On 11/19/2008 4:16 PM, Prof Brian Ripley wrote:
On Wed, 19 Nov 2008, Duncan Murdoch wrote:
I have a client who wants to install R and a custom package on a machine with
no internet connection, so he wants to put everything needed on a CDROM and
install from there.
I've told him how to work out what is needed, but it seems that too much
manual work is needed: he needs to install the packages from .zip files
(this is Windows) in the right order so dependencies are met, etc.
I don't think the install order matters for binary packages (on Windows or
elsewhere). install.packages() certainly does not optimize it.
Thanks, as I mentioned to Simon I didn't know this. That definitely
makes things simpler.
Is there an automated tool to do this? That is:
The easiest way is to copy a repository to the CD-ROM, and point repos at
that (as a file::// URL). You can even add files and rebuild the PACKAGES
file (using tools::write_PACKAGES).
But if the list of packages never changes, why not just install them in a
separate library and burn that on the CD-ROM?
In the long run, the first order dependencies won't likely change, but
their dependencies might. We didn't write those packages, we just use
them.
Duncan Murdoch
- start from an R installation that's working, and then follow the
dependency tree from a specified list of packages to generate a list of
packages to download
- download all the .zip or .tar.gz files for those from CRAN (possibly
listing the ones that don't exist there, because they are local custom ones)
- produce a script that can be run to install all of them on a new R
install.
Duncan Murdoch
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