ClassifyEqualInterval
Classify functions ClassifyEqualInterval
syntax
- ClassifyEqualInterval(a, Domain unit)
definition
ClassifyEqualInterval(a, domain unit) results in a Data item with class breaks, based on an equal interval distribution of classes. The resulting Values unit is the values unit of data item a, the resulting domain unit is the domain unit Argument.
- a: numeric data item to be classified
- domain unit: determining the number of class breaks.
description
An equal distribution of classes means the data item to be classified is split up in classes with, as far as possible, an equal interval size of each class.
The same function can also be applied from the GUI, by requesting the Palette Editor of a map layer and activating the Classify > Equal Interval classification.
The ClassifyEqualInterval results in a set of ClassBreaks that can be used in the Classify function to classify a data item.
applies to
- data item a with Numeric value type
- domain unit with Value type from group CanBeDomainUnit
since version
7.019
example
attribute<nrPersons> classifyEiNrInh (inh_4K) := ClassifyEqualInterval(NrInh, inh_4K);
| classifyEiNrInh |
|---|
| 0 |
| 341 |
| 683 |
| 1025 |
Table inh_4K, nr of rows = 4
| NrInh |
|---|
| 550 |
| 1025 |
| 300 |
| 200 |
| 0 |
| null |
| 300 |
| 2 |
| 20 |
| 55 |
| 860 |
| 1025 |
| 1025 |
| 100 |
| 750 |
Table District, nr of rows = 15