Example 42.3: Cluster Analysis with Significance Tests This example uses artificial data containing two clusters. One cluster is from a circular bivariate normal distribution. The other is a ...

Cluster analysis is a technique used to group sets of objects that share similar characteristics. It is common in statistics. Investors will use cluster analysis to develop a cluster trading ...

Example 59.1: Standardization of Variables in Cluster Analysis To illustrate the effect of standardization in cluster analysis, this example uses the Fish data set described in the "Getting Started" ...

Cluster analysis tells you about clusters of words that are getting stronger or weaker. For example, it is clear the probability that BP and "oil spill" appear close to each other spiked recently.