Problem with plot.ts, "["

[Adrian Trapletti]

Peter Dalgaard BSA wrote:

> Adrian Trapletti <Adrian.Trapletti@wu-wien.ac.at> writes:
>
> > There seems to be a problem with plot.ts (R Version 0.64.2)
> >
> > >x<-cbind(1:10,2:11)
> > >x<-as.ts(x)
> > >plot(x)
> > Error: subscript (20) out of bounds, should be at most 10
> > >
> >
>
> If it's any consolation to you, this didn't work in 0.64.1 and not in
> 0.65unstable either, although it gets a different error there...
>
> > The problem is located in "[.ts":
> >
> > > x<-cbind(1:10,2:11)
> > > x[is.finite(x)]
> >  [1]  1  2  3  4  5  6  7  8  9 10  2  3  4  5  6  7  8  9 10 11
> > > x<-as.ts(x)
> > > x[is.finite(x)]
> > Error: subscript (20) out of bounds, should be at most 10
> > >
> >
> > and there (in "[.ts") the following statement gives the error:
>
> Actually, I suspect that the mistake is to do  x[is.finite(x)] in the
> first place. It is used to calculate ranges for plot limits, but one
> might better have used range(x,finite=TRUE) for that.

In fact, that works fine and does not affect the "[.ts" method.

Concerning "[.ts" method, I think the user expects that it works
like the "[" for vectors and matrices with further setting the
tsp attributes correctly. Hence, also for me the actual behaviour
is more a bug than a feature...

thanks

Adrian

>
>
> --
>    O__  ---- Peter Dalgaard             Blegdamsvej 3
>   c/ /'_ --- Dept. of Biostatistics     2200 Cph. N
>  (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

--
Adrian Trapletti, Vienna University of Economics and Business
Administration, Augasse 2-6, A-1090 Vienna, Austria
Phone: ++43 1 31336 4561, Fax: ++43 1 31336 708,
Email: adrian.trapletti@wu-wien.ac.at



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