Re: library(plyr) not working.

[Dennis Murphy]

Hi:

Just try to reinstall it and use install.packages() rather than
update.packages(). If you try to update a package when it's on the
search path, that message will appear fairly regularly (at least on
Windows); sometimes the problem just occurs randomly. I find if I'm
updating a fairly large number of packages (say 50, for example), the
problem will arise at least once or twice. My approach is to just keep
installing a package until it works, using a fresh R session with no
contributed packages loaded.

This problem arises on Windows systems; I've never gotten it in Linux.
I don't have a Mac, so I can't comment on what happens there. It's
annoying, but it's also fairly easy to rectify.

HTH,
Dennis

On Sun, Jul 1, 2012 at 12:26 PM, statwonk <cpe...@gmail.com> wrote:
> I've been unable to call library on 'plyr' today, any idea why?
>
> package ‘plyr’ successfully unpacked and MD5 sums checked
> Warning in install.packages :
> cannot remove prior installation of package ‘plyr’
>
> The downloaded binary packages are in: some-path
>
>> library(plyr)
> Error in library(plyr) : there is no package called ‘plyr’
>
> Using R 2.15 64-bit and also having tried 32-bit. Any help appreciated,
> regards.
>
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