Tutorial Session 7 3D Kriging

Tutorial Session Seven – Three Dimensional Kriging The example session with EcoSSe which is described in this and Part 1 is intended as an example run to familiarise the user with the geostatistical facilities within the package. This documented example illustrates one possible set of analyses which may be carried out. It takes you through the following sequence of analyses: Ø Cross-validation of the semi-variogram model Ø Kriging a grid of point values for mapping There are many other facilities within the package, which are given as alternative options on the menus. This part of the documentation assumes that you have worked through Tutorial Three (Part 1) where we constructed and modelled semi-variograms on the copper values listed in the copper data set. Cross validation of the semi-variogram model For this Tutorial, we have decided to continue with some geostatistical estimation using the model which we have fitted. As you can see, I have chosen the option to . There is a bit of confusion in the literature in the naming of the process. Some authors call this jack-knifing. This nomenclature is misleading, since the procedure bears little relationship to what statisticians would expect by jack-knifing. Other authors use the two words hyphenated or as a single word. We have chosen the above form to emphasis the meaning of the procedure. We attempt to validate our semi-variogram by dropping out each sample value and (cross) ...