Data classification is the process of
organizing data into categories for its
most effective and efficient use.
A well-planned data classification system
makes essential data easy to find and
two of the most common "default"
methods of classifying data are presented. These
are two of many choices available in recent
versions of ArcView , and a designer should be
aware of the differences among all of the
methods. Each has advantages and
Quantiles. This method classifies data into a
certain number of categories with an equal
number of units in each category.
Equal Intervals . This method sets the value
ranges in each category equal in size. The entire
range of data values ( max - min ) is divided
equally into however many categories have been