Use the Distribution page to control the way ranges of values are calculated for a map layer that has a spatial data and analytical data relationship. Color rules, size rules, and width rules use distribution options.
Select options to specify how to create ranges of data values. The color of a map element varies depending on its aggregated data value and where that value falls in the range.
Select the method to use to divide data values into distinct groups:
Optimal Divide the data by using a method that more accurately shows the distribution of data. This approach provides a balance between the EqualInterval and EqualDistribution methods. When you select this option, the number of subranges is calculated automatically.
EqualInterval Divide the range into equal intervals regardless of how many data points are in each interval. This approach can produce an unbalanced number of data points per interval.
EqualDistribution Divide the range so that an equal number of data points are in each interval. This is also called the quantiles method. This approach can obscure the actual distribution of data.
Custom Specify your own subranges.
Number of subranges
Select the number of intervals to divide the data into.
Specify the beginning value for the range. By default, the value is the minimum value based on the data from the datasets that are used by the map layer, the layer group expression, the filters defined on the dataset and layer group, and the center view of the map viewport.
Specify the ending value for the range. By default, the value is the maximum value based on the data from the datasets that are used by the map layer, the layer group expression, the filters defined on the dataset and layer group, and the center view of the map viewport.
Available when you choose the Custom option for Distribution. Click this button to create a subrange.
Specify the value for the beginning of the custom subrange.
Specify the value for the end of the custom subrange.