[R] Creating packages with windows (accessing data)

[Alan T. Arnholt]

Thank you,

The DESCRIPTION is what I needed...all works as I want now.

Alan-

Alan T. Arnholt
Associate Professor
Department of Mathematical Sciences
Appalachian State University
Boone, NC 28608
(828) 262 2863
www1.appstate.edu/~arnholta
 

-----Original Message-----
From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] 
Sent: Sunday, April 17, 2005 10:24 AM
To: Alan Arnholt
Cc: r-help at stat.math.ethz.ch; arnholt at math.appstate.edu
Subject: Re: [R] Creating packages with windows (accessing data)

Look at `Writing R Extensions' and the description of the DESCRIPTION 
file, specifically `LazyData'.

That is the manual about packages ....

On Sun, 17 Apr 2005, Alan Arnholt wrote:

> I have created a package (under Windows 2.0.1) with 300+ data sets and <20
> or so functions I use in teaching.  However, to access the data, one needs
> to type data(foo) once the package has been installed and loaded.  With
> other packages namely MASS, after the package is installed and loaded with
> library(MASS), it is possible to refer to a data set say Animals by simply
> typing Animals at the command prompt.  I would like to have similar
> functionality in my package.  Would someone provide some hints as to what
> I need to do (read about xxx...or provide a line of code) so that the data
> in the package can be accessed once it is loaded without typing data(foo)
> all the time.  Currently, when I type the name of a function it shows the
> code for the function.  I would like it to also show the data when I type
> the name of any of the data sets.  Thanks for the pointers in advance.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595