Message-ID: <f8e6ff050911021102m35de0386y9d80378268d0902@mail.gmail.com>
Date: 2009-11-02T19:02:02Z
From: Hadley Wickham
Subject: "Safe" way to automatically install required packages...
In-Reply-To: <4AEF2B59.3050809@ucdavis.edu>
If you package "depends" on another package, it will be automatically installed.
Hadley
On Mon, Nov 2, 2009 at 12:56 PM, Jonathan Greenberg
<greenberg at ucdavis.edu> wrote:
> R-helpers:
>
> ? I'm working on an r-package that I want to make as easy-to-use as possible
> for a novice R-user, which includes automatically installing required
> packages. ? I, myself, am a novice R-packager, so the solution I came up
> with was to embed:
>
> print("Loading required packages...")
> if (!require("reshape")) { install.packages("reshape") }
> if (!require("reshape")) {
> ? print("Could not install package 'reshape', please contact your
> sysadmin.")
> ? return()
> }
>
> ? in the code proper, and put together the package using package.skeleton()
> and R CMD build.
>
> ? I'm guessing there's a better way to do this -- any suggestions?
> --j
>
> --
>
> Jonathan A. Greenberg, PhD
> Postdoctoral Scholar
> Center for Spatial Technologies and Remote Sensing (CSTARS)
> University of California, Davis
> One Shields Avenue
> The Barn, Room 250N
> Davis, CA 95616
> Phone: 415-763-5476
> AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
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