kmEstimate is used to fit kriging models. This function should not be called directly, due to the environments defined in
km to avoid computing twice
nxn matrices. Call
an object of class
an environment specifying where to assign intermediate values for future gradient calculations.
An object of class
Park J-S, Baek J. (2001), Efficient computation of maximum likelihood estimators in a spatial linear model with power exponential covariogram, Computer Geosciences, 27, 1-7.