Hi -
On page 312 of "Geostatistics: modeling spatial uncertainty" the authors
Chiles and Delfiner discuss algebraic dependence between drift
coefficients of a primary and secondary variable, in the simplest case.
Under what typical conditions can such an assumption about drifts be
made? In the case of terrain data for example, where the height is the
primary variable and the slope or gradient the secondary variable. Are
the drift coefficients of both variables ... erm ... dependent? And why.
Ultimately, I'm trying to work out the cokriging equation for such a
problem.
Thanks,
- Olumide
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