You have not included the output of session info() which suggests you have nit
read the Posting Guide... go do that now.
I am not aware of any install procedure that deletes R packages. You can
usually install multiple versions of R. Each X.Y version of R by default refers
to a different library directory. Therefore when you run a new version of R you
are likely to find that it does not find your packages.
However that is not the end of the world... just reinstall them if you don't
feel like paying attention to what the fine R Installation guide tells you. You
may find that sometimes package authors don't update their packages when a new
version of R comes out, so CRAN may archive those packages making it a bit less
easy to use them. However, there is no way for us to guide you before that
happens about your best approach afterward... some of your options may include
learning how to fix packages yourself, rolling back to an earlier version of R
(we generally can't help you if you take this route because the Posting Guide
warns you that the current released version of R is expected here), or using a
different package or your own code to perform the task.
Usually you can copy your old library directory onto the new one and
update.packages to update them.
---------------------------------------------------------------------------
Jeff Newmiller The ..... ..... Go Live...
DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go...
Live: OO#.. Dead: OO#.. Playing
Research Engineer (Solar/Batteries O.O#. #.O#. with
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Sent from my phone. Please excuse my brevity.
On July 24, 2015 9:41:27 PM PDT, Waqas Shafqat <waqas1...@gmail.com> wrote:
>Dear sir,
>
>I am using currently R 3.1.3. But i wnat to upgrade this version to R
>3.2.0
>but i am feared that the libraries which i have installed may be
>remove?
>please guide me.
>
>thanks
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