[R] as.Date

[Prof Brian Ripley]

And I am hereby reporting this bug to the package maintainer.

On Wed, 9 Feb 2011, Philipp Pagel wrote:

> On Wed, Feb 09, 2011 at 08:44:30AM +0100, Valeri Fabio wrote:
>> Hello,
>>
>> I find out which package disturbs as.Date(). It is the package Epi:
>>
>>> as.Date(36525, origin="1900-01-01")
>> [1] "2000-01-02"
>>> library(Epi)
>>> as.Date(36525, origin="1900-01-01")
>> [1] "2070-01-01"
>>> detach("package:Epi")
>>> as.Date(36525, origin="1900-01-01")
>> [1] "2000-01-02"
>
> OK - that makes sense. Epi has its own as.Date.numeric function and
> upon loading the package you get a warning:
>
>
>> library(Epi)
> Attaching package: 'Epi'
> The following object(s) are masked from 'package:base':
>    as.Date.numeric, merge.data.frame
>
>
> A quick look at the manual page confirms that Epi's version does not
> have an origin option.
>
> cu
> 	Philipp
>
> -- 
> Dr. Philipp Pagel
> Lehrstuhl für Genomorientierte Bioinformatik
> Technische Universität München
> Wissenschaftszentrum Weihenstephan
> Maximus-von-Imhof-Forum 3
> 85354 Freising, Germany
> http://webclu.bio.wzw.tum.de/~pagel/
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595