Arguments
ps
A numeric vector of length 2 giving the values
of phi and sigma^2, in that order.
ghat
A numeric vector giving the nonparametric
estimate of the PCF at all distances specified in useq
(see below)
useq
An increasing, equally spaced numeric vector
giving the spatial distances at which the contrast
criterion is to be evaluated.
model
A character string specifying the form of
the theoretical spatial correlation function (matches
'model' argument for CovarianceFct in the RandomFields
packages).
transform
A scalar-valued function which performs
a numerical transformation of its argument. Used for
calibration of the contrast criterion, by transforming
both parametric and nonparametric forms of the PCF.
power
A scalar used for calibration of the
contrast criterion: the power which to raise the
parametric and nonparametric forms of the PCF to.
...
Additional arguments if required for
definition of the correlation function as per 'model'.
See ?CovarianceFct (RandomFields).