[R] R function for "interp"

[José Ernesto Jardim]

Prof Brian Ripley wrote:

> > Date: Mon, 02 Oct 2000 14:33:00 +0100
> > From: José Ernesto Jardim <ernesto at ipimar.pt>
> >
> > Prof Brian Ripley wrote:
> >
> > > > Date: Mon, 02 Oct 2000 12:01:29 +0100
> > > > From: José Ernesto Jardim <ernesto at ipimar.pt>
> > >
> > > > How can I do the same has interp in s+ with R ? I've looked to
> > > > "approxfun" but didn't figured out how to do it.
> > >
> > > It's in package akima (on CRAN).  I think interp,old there is the
> > > closest equivalent.
> > >
> > >
> > I found it but it's not working properly :-(
> >
> > If I do "contour(interp(X,Y,Z))" it stops without finishing the ploting
> process,
> > the margins and borders fail.
> >
> > Is there any known reason why ?
>
> Did you try interp.old *as I suggested*?  There are working examples in
> the V&R script ch14.R.  The first of those does work with interp, so
> perhaps your installation of package akima is broken?
>
> --
> 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 272860 (secr)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Yes, I used interp.old also !  It's the same, interp is a wraper to
interp.old or interp.new depending on the object (I suppose).

I'll look in the script your talking about.

Thanks

EJ


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