On Jun 10, 2011, at 3:36 PM, Dirk Eddelbuettel wrote: > > On 10 June 2011 at 15:10, Simon Urbanek wrote: > | > | On Jun 10, 2011, at 2:54 PM, Nipesh Bajaj wrote: > | > | > Dear all, it is my first post in R-devel list, and hope that this is > | > the right place to ask question related to package development. > | > > | > I have created my first package in Windows through the usual route. > | > Now I want to add some ***Welcome message*** as soon as user loads my > | > package into their R console, using library() function. However I > | > could not figure out where and how should I add this functionality in > | > entire package development procedure, and the "Writing R Exts" > | > document also seem to be mum on this issue. > | > > | > | Personally, I find "welcome messages" extremely annoying, because if you > load a dependency chain of 20 packages and each has something silly to say, > you get pages of completely useless output (since you can't read all of them > anyway) that tend to interfere with automated scripts. Also anything people > tend to say in those is pertinent only once (when the user first sees the > message) so the message is pointless most of the time that it's shown. But > that's just my opinion. > | > | That said, you can simply use cat() in .First.lib (if your packages has no > namespace) or .onAttach or .onLoad (if your packages has a namespace). > > No, not cat() --- please use packageStartupMessage() as that can actually > be suppressed easily. >
Thanks, very, very good point -- that many package authors did not get (I actually checked a few packages before replying and they all use cat() ... eek). Thanks, Simon ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
