Further questions would be better sent to:
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sun, Jul 11, 2021 at 3:20 AM Enzo Cocca <enzo....@gmail.com> wrote:
> Hi Eric,
> I know but I can't understand where is the error.
> the function shortestpath wants:
>
> x="TransitionLayer", origin="Coords", goal="Coords"
> or
> x="TransitionLayer", origin="numeric", goal="numeric"
> or
> x="TransitionLayer", origin="SpatialPointsDataFrame",
> goal="SpatialPointsDataFrame"
>
> so I followed the example in the rWind package and works, than I changed
> the coordinates and I have the error
>
>
>
> Il giorno dom 11 lug 2021 alle ore 11:50 Eric Berger <
> ericjber...@gmail.com>
> ha scritto:
>
> > This error can result from v with NAs.
> > e.g. to reproduce the error message
> >
> > > v <- as.numeric(NA)
> > > if (is.numeric(v) && any(v < 0)) cat("hello world\n")
> >
> > see also
> >
> >
> https://stackoverflow.com/questions/7355187/error-in-if-while-condition-missing-value-where-true-false-needed
> >
> > HTH,
> > Eric
> >
> >
>
> --
> Enzo Cocca PhD
> in "Science and Technology for Archaeology and Cultural Heritage"
>
> ISMEO
> International Association of Mediterranean and Oriental Studies
>
>
> mail: enzo....@gmail.com
> cell: +393495087014
>
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>
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