On 07/04/2012 22:27, Thomas J. Leeper wrote:
I'm currently working on a new package for R that interfaces with an API.
Most of the package's functionality requires users to supply an access key
that allows the package to work with the API. I want to display text
immediately upon loading the package that instructs/reminds users to enter
their access key before attempting to do anything (as the package won't
really work without it). I've searched the relevant help files for creating
packages but haven't been able find anything about how to do this. As an
example, library(Zelig) does what I'm trying to achieve.
Thanks for your help! And sorry if there's an obvious answer to this that I
am oblivious to.
-Thomas
?.onAttach
?packageStartupMessage
(You could also look at the sources for package Zelig, but actually it
is a poor example since it ignores the arguments to .onAttach, and
wastes time calling packageDescription() twice.)
--
Brian D. Ripley, rip...@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
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