`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 `km`

instead.

`kmEstimate(model, envir)`

model

an object of class `km`

.

envir

an environment specifying where to assign intermediate values for future gradient calculations.

An object of class `km`

.

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.