[R] Getting an older version of a package

stephen sefick ssefick at gmail.com
Mon May 25 04:26:02 CEST 2009

if you are on a .nix then in a terminal move to the directory that
contains the tar ball of the packages and type R CMD install
hope this helps

Stephen Sefick

On Sun, May 24, 2009 at 5:50 PM, Le Wang <ruser.le at gmail.com> wrote:
> Duncan Murdoch,
> Many thank you for your reply. I did try to download the older
> versions from CRAN. But I am not quite sure how to compile the source
> form. I tried using the option "install package(s) from local zip
> files" in R, but it didn't work. It simply gave the following msg
>> utils:::menuInstallLocal()
> updating HTML package descriptions
> On Sun, May 24, 2009 at 4:36 PM, Duncan Murdoch <murdoch at stats.uwo.ca> wrote:
>> On 24/05/2009 4:00 PM, Le Wang wrote:
>>> Hi there,
>>> Thanks for your time in advance.
>>> I am using an add-on package from Cran. After I updated this package,
>>> some of my programs don't work any more. I was wondering if there is
>>> anything like version control so that I could use the older version of
>>> that package; or if I could manually install the previous version and
>>> how I could acheive it? I am not a regular R user; although it is
>>> supposed to be very easy, after spending many hours on this, I still
>>> haven't figured out how to proceed. Your help will be greatly
>>> appreciated.
>> CRAN has the older versions of the package available in source form. You
>> need to download one of those and install it:  but watch out for other
>> packages that depend on the newer one.  In the long run, it's probably a
>> better investment of your time to fix your programs to work with the new
>> package.  (Or possibly report to the package maintainer if they have
>> introduced a bug.)
>> Prior to R 2.9.0, it was possible to install multiple different versions of
>> packages, but this never worked perfectly, and it has been dropped.
>> Duncan Murdoch
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Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis

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