[R] POSIX and identify

[Petr Pikal]

Hi

On 15 Sep 2003 at 20:09, Troels Ring wrote:

> Thanks a lot, but something else may be awry ? - at least
> as.POSIXct(Dato) although now of length 84 still elicits a report of
> different argument lengths even though length now is 84 for both
> arguments.

try
plot(as.POSIXct(Dato),Crea))

and
then

identify(as.POSIXct(Dato),Crea))

>  > identify(as.POSIXct(Dato),Crea,5,plot=TRUE)
> Error in identify(x, y, as.character(labels), n, plot, offset) :
>          different argument lengths
>  > length(as.POSIXct(Dato))
> [1] 84
>  > length(Crea)
> [1] 84
>  > length(Dato)
> [1] 9
> 
> Best wishes
> Troels Ring
> Aalborg
> 
> At 18:43 9/15/03, you wrote:
> >You need to convert to POSIXct before using Dato in identify().
> >This will work as you expected in R 1.8.0.
> >
> >On Mon, 15 Sep 2003, Troels Ring wrote:
> >
> > > Dear Friends, I'm using winXP and R 1.7.1 and plotting some data
> > > using dates on the x-axis, and wanted to use identify to show some
> > > points but 
> > was
> > > told by identify that the x and y vectors producing a fine graph
> > > with 84 points were not equal in length. Below are the Dato for
> > > date - and length(Dato) finds 9 but str finds 84 as known. Will
> > > identify not work in this context ? Best wishes Troels Ring
> > > Aalborg, Denmark
> > >  > Dato
> > >   [1] "2000-01-04" "2000-01-07" "2000-01-10" "2000-01-13"
> > >   "2000-01-17" .......
> > > [81] "2003-04-23" "2003-05-14" "2003-07-30" "2003-08-14"
> > >  > length(Dato)
> > > [1] 9
> > >  > str(Dato)
> > > `POSIXlt', format: chr [1:84] "2000-01-04" "2000-01-07"
> > > "2000-01-10" "2000-01-13" ...
> >
> >--
> >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
> >
> >______________________________________________
> >R-help at stat.math.ethz.ch mailing list
> >https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> 
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> 
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Cheers
Petr Pikal
petr.pikal at precheza.cz