Log Message:
Gstat is a program for the modelling, prediction and simulation ofgeostatistical \ 
data in one, two or three dimensions.  Geostatistical data are data \ 
(measurements) collected at known locations in space,from a function (process) \ 
that has a value at every location in a certain (1, 2 or 3-D) domain. These data \ 
(or some transform of them)are modelled as the sum of a constant or varying \ 
trend and a spatially correlated residual. Given a model for the trend, and \ 
under somestationarity assumptions, geostatistical modelling involves the \ 
estimation of the spatial correlation. Geostatistical prediction('kriging') is \ 
finding the best linear unbiased prediction (the expected value) with its \ 
prediction error for a variable at a location, given observations and a model \ 
for their spatial variation. Simulation of a spatial variable is the creation of \ 
randomly drawn realizations of a field given a model 
 for the data,possibly conditioned on observations.