[R-sig-Geo] Factorial kriging in GStat - tips for implementation?
timjp at unimelb.edu.au
Thu Aug 27 02:48:51 CEST 2015
I'm looking to undertake factorial colocated cokriging with GStat but
factorial kriging does not appear to be an available option in GStat (eg
help.search("factorial kriging") ). There was a post in 2007 requesting
this feature (http://marc.info/?l=r-sig-geo&m=119810046000747) and a
proposed approach in 2000
no updates since. As far as I can tell, the required changes would be to
'gls.c' lines 412-423, specifically the call to GCV0 for calculating C0
(right-hand side of the kriging matrix) should be edited so that only
the covariance for the required factor is calculated.
Anyway, before I consider adding this feature to GStat, I'd be grateful
if anyone could share tips or thoughts. Lastly, any changes I make will
(of course) be freely shared.
Dr. Tim Peterson
The Department of Infrastructure Engineering
The University of Melbourne, 3010 Australia
T: +61 3 8344 9950, M: +61 0438 385 937
Dept. profile :
Research Gate : https://www.researchgate.net/profile/Tim_Peterson7
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