From B.Rowlingson at lancaster.ac.uk  Thu Sep 15 18:46:29 2005
From: B.Rowlingson at lancaster.ac.uk (Barry Rowlingson)
Date: Thu, 15 Sep 2005 17:46:29 +0100
Subject: [Rd] as.Date() , feature or bug?
In-Reply-To: <Pine.LNX.4.61.0509151720570.11051@gannet.stats>
References: <6ea7b543050913183858e052f4@mail.gmail.com>	<4328152F.9060705@statistik.uni-dortmund.de>	<6ea7b54305091408275ad633d3@mail.gmail.com>	<43284654.1010400@statistik.uni-dortmund.de>
	<Pine.LNX.4.61.0509151720570.11051@gannet.stats>
Message-ID: <4329A565.4030905@lancaster.ac.uk>

Prof Brian Ripley wrote:
>
> What does anyone want such dates for?  I hope there was an extremely good 
> reason to spend other people's time on this, and look forward to an 
> extremely convincing explanation.
> 

I can think of one case where I've seen exact dates that far in the 
future used: astronomical calculations. You may have something like "And 
the next chance you'll get to see Jupiter this close to Venus will be on 
December 12th 8766CE. Just after lunchtime in whatever remains of London 
then.".

Is there an R package for astronomical calculations?

Baz



[Rd] as.Date() , feature or bug?
Barry Rowlingson