On 03.05.2013 07:54, PIKAL Petr wrote:
Hi

Probably others can give you some better insight but copying folder with 
package from one machine to another is possible until the installation is 
required by a new version of R (about each 3 years).

Reinstallation may be required more often, and we expect that packages need to be reinstalled at least if x or y are increased in a new R-x.y.z release. In rather rare cases this also happens for patch level updates. There are examples where a reinstalltion is not required that often, but that is not guaranteed.

Best,
Uwe Ligges





Petr

-----Original Message-----
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Hui Du
Sent: Thursday, May 02, 2013 6:55 PM
To: r-help@r-project.org
Subject: [R] Self-developed package -- installation

Hi All,

I have a question about package installation in R. We have developed a
package, say 'ABC'. We have installed it in two machines, A and B by
running 'Install Package(s) from local zip file'. Everything was fine.
Right now, suppose that package got damaged in machine A and our zipped
file is gone, My question is that may I directly copy ../library/ABC
from machine B to machine A rather than running 'Install Package(s)
from local zip file' (I don't have that zip file anymore)?


Thanks.

HXD



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