Jonathan Baron <[EMAIL PROTECTED]> writes:
> On 04/14/04 11:42, Duncan Murdoch wrote:
>>On Wed, 14 Apr 2004 17:07:42 +0200, Kasper Daniel Hansen
>><[EMAIL PROTECTED]> wrote :
>>>You do not find it a bit overkill to install all of CRAN per default?
>>
>>I can see two situations where this would be desirable:
>>
>>On a laptop or other machine that is often not connected to the net:
>>install everything just in case you might want something and can't go
>>to CRAN for it.
>>
>>In a public lab where users have limited ability to install packages,
>>it's good to have them all there.
>
> A third reason: You run a search site where you want people to
> be able to search all the help files, such as the one at the end
> of my sig.
>
> May 1, after updating to R-1.9, I plan to try this script to see
> if it knows not to update files that haven't changed, and add
> some other odds and ends that I have installed.
On a single R installation, an alternative R function to accomplish
something similar is:
installNewCRANPackages <- function() {
## (C) A.J. Rossini, 2002--2004
test2 <- packageStatus()$avail["Status"]
install.packages(row.names(test2)[which(test2$Status=="not installed")])
}
which gratuitiously installs all new packages whether you want them or
not.
best,
-tony
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