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Data Analysis and Statistics for Geography, Environmental Science, and Engineering
book

Data Analysis and Statistics for Geography, Environmental Science, and Engineering

by Miguel F. Acevedo
December 2012
Beginner content levelBeginner
557 pages
19h 5m
English
CRC Press
Content preview from Data Analysis and Statistics for Geography, Environmental Science, and Engineering
264 Data Analysis and Statistics for Geography, Environmental Science, and Engineering
k
mT
sm
T
=
()
()
/
/
2
2
(8.9)
and p is the probability that a cell contains a point
p
k
mT
k
==
λ
/
(8.10)
The mean is the rate m/T. We then use chi-square to test if pattern distributed according to a nega-
tive binomial.
For example, suppose we have T = 3 × 3 = 9 cells and that we observe m = 13 points. The rate
is m/T = 13/9 = 1.44. Suppose we observe the following counts in each cell 1, 0, 1, 0, 1, 5, 2, 2, 1.
Therefore, the observed values of number of cells with r = 0, 1, 2, 3, 4, 5 are 2, 4, 2, 0, 0, 1. The
variance is calculated to be s
2
= 2.27. Therefore, the clus ...
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Publisher Resources

ISBN: 9781439885017