On 7 April 2012 at 16:27, 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.
Start with
help(packageStartupMessage)
help(.onLoad)
and also peruse the list archives here---you probably want this in your
.onLoad() function.
Maybe some of the packages interfacing Google's APIs and webservices have an
example.
Dirk
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