[R] R version 3.3.2, Windows 10: gstat package: Error in fitting a variogram model using 'fit.variogram' function

[Bert Gunter]

No reproducible example makes it difficult to diagnose the source of the
error.

Did you try using traceback() after the error? That might give you a hint.

I am unfamiliar with the package and function, but check the "range"
argument to make sure it's supposed to be a single value and not a vector
(just a wild guess on my party -- therefore likely wrong).

Cheers,
Bert






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, Sep 24, 2017 at 1:12 PM, Rathore, Saubhagya Singh <
saubhagya at gatech.edu> wrote:

> Dear Members,
>
>
>
> I am trying to fit a variogram model using fit.variogram function from the
> gstat package. The figure showing my experimental variogram can be seen
> here: https://i.stack.imgur.com/UZXw4.png
>
> My code line for this operation is:
>
> > c2.vgm.fit<-fit.variogram(c2.vgm.exp,vgm(nugget=0,
> psill=400,model="Exp",range =40000),fit.method = 7)
>
> The system throws following error message:
>
> Error in switch(model, exponential = fit.exponential(v.object, c0 =
> nugget,  :
>
>   EXPR must be a length 1 vector
>
> Any help to know the cause of the error and avoiding it would be highly
> appreciated.
>
> Thank you very much
> Saubhagya Singh Rathore
> PhD Candidate
> Civil and Environmental Engineering
> Georgia Institute of Technology
>
>
>
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>
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