This chapter and the following one are devoted to the variogram. In this one, after defining the variogram, its theoretical properties are discussed (e.g. zone of influence, behaviour near the origin, anisotropies, presence of a drift, etc.). The common variogram models are presented. Images of variables having some of these variograms have been simulated to highlight the differences between the models. The formula for calculating the variance of a linear combination of regionalized variables in terms of the variogram is proved. The reason why only positive definite functions can be used as models for the variogam is stressed.
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- The Variogram
Dr. Margaret Armstrong
- Springer Berlin Heidelberg
in-adhesives, MKVS, Nordson/© Nordson, ViscoTec/© ViscoTec, Hellmich GmbH/© Hellmich GmbH