Calculate Distance Band from Neighbor Count (Spatial Statistics)

Summary

Returns the minimum, the maximum, and the average distance to the specified Nth nearest neighbor (N is an input parameter) for a set of features. Results are accessible from the Results window.

Illustration

Calculate Distance Band from Neighbor Count illustration

Usage

Syntax

CalculateDistanceBand_stats (Input_Features, Neighbors, Distance_Method)
ParameterExplanationData Type
Input_Features

The feature class or layer used to calculate distance statistics.

Feature Layer
Neighbors

The number of neighbors (N) to consider for each feature. This number should be any integer between one and the total number of features in the feature class. A list of distances between each feature and its Nth neighbor is compiled, and the maximum, minimum, and average distances are output to the Results window.

Long
Distance_Method

Specifies how distances are calculated from each feature to neighboring features.

  • EUCLIDEAN_DISTANCEThe straight-line distance between two points (as the crow flies)
  • MANHATTAN_DISTANCEThe distance between two points measured along axes at right angles (city block); calculated by summing the (absolute) difference between the x- and y-coordinates
String

Code Sample

CalculateDistanceBandfromNeighborCount Example (Python Window)

The following Python Window script demonstrates how to use the CalculateDistanceBandfromNeighborCount tool.

import arcpy
arcpy.env.workspace = "c:/data"
mindist, avgdist, maxdist = arcpy.CalculateDistanceBand_stats("Blocks", 10, "EUCLIDEAN_DISTANCE")
CalculateDistanceBandfromNeighborCount Example (stand-alone Python script)

The following stand-alone Python script demonstrates how to use the CalculateDistanceBandfromNeighborCount tool.

# import module
import arcpy

# Set geoprocessing environment Workspace
arcpy.env.workspace = "c:/data"

# Set variables 
infc = "Blocks"
field = "POP2000"
outfc = "PopHotSpots"
neighbors = 10
 
# Run the CalculateDistanceBand tool to get a distance for use with the Hot Spot tool from the tool result object
mindist, avgdist, maxdist = arcpy.CalculateDistanceBand_stats(infc, neighbors, "EUCLIDEAN_DISTANCE")
 
# Run the Hot Spot Analysis tool, using the maxdist output from the Calculate Distance Band tool as an input
arcpy.HotSpots_analysis(infc, field, outfc, "Fixed Distance Band", "EUCLIDEAN_DISTANCE", "None", maxdist)

Environments

Output Coordinate System

Feature geometry is projected to the Output Coordinate System prior to analysis. All mathematical computations are based on the Output Coordinate System spatial reference.

Related Topics

Licensing Information

ArcView: Yes
ArcEditor: Yes
ArcInfo: Yes

3/7/2012