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Defined interval

Release 9.2
Last modified August 15, 2007
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This classification scheme allows you to specify an interval by which to equally divide a range of attribute values. Rather than specifying the number of intervals as in the equal interval classification scheme, with this scheme, you specify the interval value. ArcMap automatically determines the number of classes based on the interval. The interval specified in the example below is 0.04 (or 4 percent).

Defined interval classification

Defined interval legend

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