Analysis of Spatial Aggregation
Cancer maps have recently become a tool commonly used in cancer epidemiology. Much more than being a “nice”, “eye-pleasing” table substitute, they provide a way of conveying quickly such information as the presence of clusters of areas at similar risk. However, it is not always easy to derive from the inspection of the map the statistical significance of these clusters, i. e., to answer the question “could this pattern have occurred purely by chance?”
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