Spatial aggregation summarizes features such as points, lines, and polygons within designated areas. It involves calculating the total number of features within each bounding area, as well as any specified statistics for the points, lines, or polygons. With lines and polygons, you can also calculate the summarized geography (length of lines and area) within the bounding areas. In ArcGIS for Excel and ArcGIS for SharePoint, you can perform spatial aggregation using the Spatial aggregation tab in the Analysis pane.
The resulting layer displays any of the following:
- When aggregating within polygons, styling is by Size symbol type.
- When aggregating within bins, styling is by Color symbol type.
- When points are being aggregated, styling is by the count of points.
- Summarized geometry is styled by summarized geometry.
- Summarized lines are styled by summarized length.
- Summarized polygons are styled by summarized area.
- If no summarized geometry exists, styling is by the count of features.
Your organization administrator must grant you the correct user type, role, and privileges to perform spatial analysis. In addition, certain capabilities require additional privileges, such as the ArcGIS Network Analyst extension and ArcGIS GeoEnrichment Service. Running these processes may consume credits. For more information about how ArcGIS uses credits, see Understand credits in the ArcGIS Online help.
Note:
Spatial aggregation is one method for visualizing high-density data. For more information, as well as an overview of other methods, see Best practices for visualizing high-density data.
Related topic
See the Aggregate features topic for more information about performing spatial analysis.
| ArcGIS for Excel | ArcGIS for SharePoint |
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