Message-ID: <4C219816.5010707@gmail.com>
Date: 2010-06-23T05:13:58Z
From: Peter Dalgaard
Subject: New errors with difftime()-objects in 2.11.1 (was Re: Request: difftime method for cut())
In-Reply-To: <AANLkTilTYTbSqtBeMKqHCeZ-iMXh9Sxt4ApC-Ze-cHkp@mail.gmail.com>
Gustaf Rydevik wrote:
> Oh, I forgot to mention that the workaround of using as.double (or
> as.numeric) works fine, and I've done that.
> It's just that it can take quite a while (as in several hours) to
> figure out that the reason for the error is that you have to force
> difftime objects to be numeric in 2.11.1, when the code's been working
> fine before and the error messages are obscure.
I don't think you realize the problems that could occur by assuming that
difftime objects are numerics ON ANY PARTICULAR SCALE!
--
Peter Dalgaard
Center for Statistics, Copenhagen Business School
Phone: (+45)38153501
Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com