[R-sig-Geo] Error with STFDF

[Benedikt Gräler]

Dear Ziggy,

the spatio-temporal sum-metric variogram model is the only one that is
currently also implemented for the STSDF classes. You should be able
to coerce your STIDF to a STSDF using as(). In the STSDF case ("S"
meaning sparse), the space and time instances are stored once and an
index relates observations to their spatio-temporal location. It can
handle both extreme cases of a full layout (ST-F-DF) and the irregular
case (ST-I-DF). See Figure 1 in the spacetime vignette [1] for a
graphical representation of all four ST* layouts.

Best,

 Ben

[1] http://cran.r-project.org/web/packages/spacetime/vignettes/jss816.pdf

On 27.08.2013 01:03, Supadog wrote:
> Hi Tom,
> 
> Thanks for the response. I would like to interpolate for values in
> the 'value' column given different x, y and t values. I was hoping
> to use the krigeST function but I just did a little bit of
> searching and it appears as though it won't work with anything
> other than STFDF objects. Do I have any other options?
> 
> Thanks, Ziggy
> 
> 
> 
> -- View this message in context:
> http://r-sig-geo.2731867.n2.nabble.com/Error-with-STFDF-tp7584461p7584468.html
>
> 
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> 
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-- 
Benedikt Gräler

ifgi - Institute for Geoinformatics
University of Muenster

http://ifgi.uni-muenster.de/graeler

Phone: +49 251 83-33082
Mail: ben.graeler at uni-muenster.de