[R-sig-Geo] variogramST does not like STIDF

[Edzer Pebesma]

On 10/05/2012 03:13 PM, Bruin, Sytze de wrote:
> Hi Edzer,
> 
> Thanks for your answer!
> After the lengthy computation of the variogram (> 65000 observations) on the data that were coerced from STIDF to STSDF, a warning was issued that fixed distances were assumed, which may indicate that I did something wrong. If so, a separate method for STIDF data would be welcome! 

It indicates that your time points are irregular, but are taken as
(coerced to) regular. If your time points are nearly regular, this is no
problem.

> In the meantime, I implemented a primitive R script computing an ST variogram for data irregularly spaced in space and time, allowing different lag boundaries for space and time (which is still running).

Great; if it works, please consider contributing it!
> 
> Best,
> Sytze de Bruin
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-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics      e.pebesma at wwu.de