[R] gstat package. "singular" attibute
jgarcia at ija.csic.es
Fri Jan 5 12:06:00 CET 2007
I'm using the gstat package within R for an automated procedure that
uses ordinary kriging.
I can see that there is a logical ("singular") atrtibute of some
adjusted model semivariograms:
.- attr(*, "singular")= logi TRUE
I cannot find documentation about the exact meaning and the implications
of this attribute, and I dont know anything about the inner calculations
of model semivariograms.
I guess that the inverse of some matrix need to be calculated , and
this matrix is singular, but I also see that the model semivariogram is
Could you briefly tell me something about the significance of this
attribute and if I should not use these model semivariograms when the
"singular" attibute is true?
Thank you very much and best regards,
Institute of Earth Sciences Jaume Almera (CSIC)
Lluis Sole Sabaris s/n, 08028 Barcelona
Phone: +34 934095410
Fax: +34 934110012
e-mail:jgarcia at ija.csic.es
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