Apportion

Introduction

Apportion can assign the values of selected fields in the spatial data at a high level to the spatial units at a lower level, based on the spatial relationship and the ratio field in the spatial data at the lower level.

1. Set the input data

• Input Data: Spatial data at a high level.

2. Set the fields to apportion

• Fields to Apportion: The values of the fields will assigned to the units at a lower level.

3. Set the target data

• Target Data: Spatial data at a lower level.

4. Set the ratio field

• Ratio Field: The assigned value of a target unit will be determined by the ratio of its value in this field to the sum of values in this field for all units whose center are within the same unit of the input data.

5. Set the output data

• Output Data Name: If no name is set, the default is “toolName_time”.

6. Submit

After completing the above settings, click Submit to start the tool.
When it finishes successfully, a message will be shown at the top of the page. You can click the Open Data button to start accessing the data or go to the Data page to view it.