[Gstat-info] Initial exponential modal prior to fitting

[Edzer J. Pebesma]

Mach Nife wrote:

>I'm wondering, if I want to use the Exponential
>model, in a totally non-interactive way, what would be
>a good initial formula to use prior to fitting? I
>noticed that with different initial formulas, the
>result of the fitting is different...
>
>Please escuse me for my lack of knowledge on this
>subject.
>
>machnife
>
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I would choose a range parameter of 10% of the
spatial extent of the data area or volume, a zero
nugget and a sill equal to the sample variance.
--
Edzer