[Rd] [R] New errors with difftime()-objects in 2.11.1 (was Re: Request: difftime method for cut())

Gustaf Rydevik gustaf.rydevik at gmail.com
Tue Jun 22 20:01:52 CEST 2010

On Tue, Jun 22, 2010 at 7:50 PM, David Winsemius <dwinsemius at comcast.net> wrote:
> On Jun 22, 2010, at 1:33 PM, Gustaf Rydevik wrote:

> Cannot help you there, but have you looked at the help page for difftime?
> "The as.double method returns the numeric value expressed in the specified
> units. Using units = "auto" means the units of the object."
> David Winsemius, MD
> West Hartford, CT

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.


Gustaf Rydevik, M.Sci.
tel: +46(0)703 051 451
address:Essingetorget 40,112 66 Stockholm, SE

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