By Werner G. Müller
The publication is worried with the statistical concept for finding spatial sensors. It bridges the space among spatial data and optimal layout idea. After introductions to these fields the subjects of exploratory designs and designs for spatial pattern and variogram estimation are taken care of. designated recognition is dedicated to describing new methodologies to deal with the matter of correlated observations.
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Particularly it can be utilized for detection of outliers and inﬂuential observations. Such phenomena can ˆ be found by depicting and exploring the residuals u ˆk = γk − γ(hk , θ) from the variogram ﬁtting. Single exceptionally large residuals can for example be used to detect outliers in the variogram cloud, which usually can be tracked back to outliers in the original data. As the ordinary residuals here have diﬀerent variances their value is limited in this respect. Therefore, Haslett et al.