Summary
Creates a graduated symbol layer for points with multiple incidents occurring at or near the same location. This tool also calculates cumulative percentage for 80/20 analysis of problem locations.
Usage
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Generates a new feature class output and sorts it based on newly generated Cluster Count, Cumulative Percentage, and Percentage fields.
- The Cluster Count field represents the number of points found within the cluster tolerance for that cluster.
- The Cumulative Percentage field represents the combined percentage of the current cluster point and all other larger cluster points. This value can be used to do determine if a disproportionate number of cluster locations represent a larger proportion of crimes (for example, 20% of cluster locations contain 80% of total crimes committed).
Syntax
EightyTwentyAnalysis_crime (Input_Point_Features, Output_Feature_Class, Minimum_Cluster_Size, Attributes_to_Preserve, {Cluster_Tolerance})
| Parameter | Explanation | Data Type |
| Input Point Features | Input point features containing incident data to be analyzed. | Feature Layer |
| Output Feature Class | Output point cluster feature class. Feature class will be symbolized by the cluster count and will contain attributes from the input points used to create cluster. | Feature Class |
| Minimum Cluster Size | Any clusters smaller than the specified size will be removed from the output feature class. | Long |
| Attributes to Preserve | Attributes from input features to preserve (for example, a street address). At least one attribute is required. | Field (Multiple Value) |
| Cluster Tolerance (Optional) | Linear distance at which input points will be considered part of the same cluster. | Linear Unit |
Licensing information
- ArcGIS Desktop Basic: Yes
- ArcGIS Desktop Standard: Yes
- ArcGIS Desktop Advanced: Yes