Figure 9.18a,b,c,d: These graphs show some of the possible display options for
viewing series experimental semivariograms. Graph a) shows the scatter of all the
simulation experimental semivariograms (o), the mean 
(h) value for each lag (n), and
the extents (- - -)of the sample (h) lag values. Graph b) shows the same data set
without the individual experimental semivariograms. Graph c) shows the same information as
b), but the 95% confidence interval for the range of (h) for each lag is shown. Graph d)
shows an individual experimental semivariogram from the series set in a), b), and c).
