[R-sig-Geo] "Theta" value in Fields library for Tps

[Paul Hiemstra]

Hi Sandeep,

I would reproject your data using the spTransform function.

cheers,
Paul

On 10/05/2011 09:50 PM, Sandeep Patil wrote:
> Hello
>
> If anyone has used the function tps which fits thin plate splines on spatial
> data can
> you tell me what units do i specify parameter *theta *in.
>
> It controls the tapering range beyond which radial basis function is zero.
>
> I am specifying coordinates in *Lat* and *Lon* and calculating *great circle
> distances*.
>
> Sandeep
>
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>
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-- 
Paul Hiemstra, Ph.D.
Global Climate Division
Royal Netherlands Meteorological Institute (KNMI)
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