Classifying your Data

You can group features into classes using the Legend Editor. The default classification groups data into five categories based on the Natural Breaks, or Jenks, method of classification. However, you can easily change the classification.

In the example below, the Counties theme has been grouped into five categories based on the Pop_93 field in its theme table.

You can display classes with a color ramp (in which colors change gradually from the first to the last symbol). The color ramp used below starts with light red for the class representing the lowest population and ends with dark red for the class representing the highest population.

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