
Introduction 13
0 2 4 6 8 10 12
0.0 0.5 1.0 1.5 2.0
r (cm)
g
(
r
)
0 2 4 6 8 10 12
0.0 0.5 1.0 1.5 2.0
r (cm)
g
(
r
)
0 2 4 6 8 10 12
0.0 0.5 1.0 1.5 2.0
r (cm)
g
(
r
)
Figure 1.16. Assessing statistical significance of correlation between p oints. Estimates of the
pair correlation function (solid lines) for the three wate r strider patterns. Dashed horizontal line
is the expected value if the pa tterns are completely random. Grey shading shows pointwise 5%
significan ce bands.
0 0
2 2
0
0
4 2
3
1
2 4
5 5
4
9
10
19
10
7
100
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350
Figure 1.17. Measuring spatial trend. E nterochromaffin-like cells in gastric mucosa (Figure 1.1)
showing (Left) coun ...