Arguments
par.model
character string giving the name of the parametric
model to fit to the empirical variogram. Implemented models are
exponential, spherical, gauss, gencauchy, and
matern.
emp.variog
an object of the class emp.variog, output of the function Emp.variog or of the function
avg.variog.
max.dist.fit
number giving the maximum distance considered when fitting the variogram.
init.val
numeric vector giving the initial values for the parameters. The number of initial values to be entered depends on the variogram model specified.
init.var
number giving an initial estimate for the variance parameter of the variogram.
fix.nugget
logical field indicating whether the nugget should be considered fixed or not. If TRUE the nugget effect will be assumed to be constant, and a value
for the fixed nugget effect can be also provided. If the value provided is different from the one entered in the init.val field, then the value of the nugget effect
is taken to be the one entered in the init.val field.