[R] Problems with date-format (R 2.1.1 + chron)

[Gabor Grothendieck]

On 7/19/05, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
> I think its likely that you are using different versions of chron.
> I noticed that version "2.2-33" of chron had the statement:
> 
>   tms <- dts - trunc(dts)
> 
> but version "2.2-35" seems to have replaced it with:
> 
>  tms <- dts - floor(dts)
> 
> and that seems to be causing the problem.
> 
> As a workaround:
> 
>    floor.Date <- floor.trunc

That should have been:

      floor.Date <- trunc.Date

>    days(as.Date("21-07-2005", "%d-%m-%y"))
> 
> 
> On 7/19/05, Carsten Steinhoff <carsten.steinhoff at stud.uni-goettingen.de> wrote:
> > Hello,
> >
> > today I've updated on the newest R-Version. But sadly a function I needed
> > didnt want to work:
> > The input is e.g.
> >
> > days(as.Date("21-07-2005","%d-%m-%y"))
> >
> > the error is: Fehler in Math.Date(dts): floor nicht definiert für Date
> > Objekte
> > (Error in Math.Date(dts): floor not defined for date objects)
> >
> > Same for year. Only months gives me the correct output.
> > In Version 2.01 it worked very well, with the same chron library.
> > Whats wrong ?
> >
> > Carsten
> >
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