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Highest Position

Available with Spatial Analyst license.

  • Summary
  • Illustration
  • Usage
  • Syntax
  • Code Sample
  • Environments
  • Licensing Information

Summary

Determines on a cell-by-cell basis the position of the raster with the maximum value in a set of rasters.

Illustration

Highest Position illustration
OutRas = HighestPosition([InRas1, InRas2, InRas3])

Usage

  • An arbitrary number of rasters can be specified in the input rasters list.

  • The order of the input rasters is relevant for this tool.

  • If a cell location contains NoData on any of the input rasters, that location will be assigned NoData on the output.

  • The output raster is always of integer type.

  • If two or more input rasters contain the maximum value for a particular cell location, the position of the first one is returned on the output raster.

  • See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool.

Syntax

HighestPosition (in_rasters_or_constants)
ParameterExplanationData Type
in_rasters_or_constants
[in_raster_or_constant,...]

The list of input rasters for which the position of the input with the highest value will be determined.

A number can be used as an input; however, the cell size and extent must first be set in the environment.

Raster Layer | Constant

Return Value

NameExplanationData Type
out_raster

The output raster.

For each cell in the output raster, the value represents the position of the raster with the highest value.

Raster

Code Sample

HighestPosition example 1 (Python window)

This example evaluates several input rasters and returns as an output value the position in the list of the raster with the maximum value.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outHighestPosition = HighestPosition(["degs", "negs", "fourgrd"])
outHighestPosition.save("C:/sapyexamples/output/outhp.img")
HighestPosition example 2 (stand-alone script)

This example evaluates several input rasters and returns as an output value the position in the list of the raster with the maximum value.

# Name: HighestPosition_Ex_02.py
# Description: Determines the position of a raster with the maximum
#              value in a set of rasters
# Requirements: Spatial Analyst Extension

# Import system modules
import arcpy
from arcpy import env
from arcpy.sa import *

# Set environment settings
env.workspace = "C:/sapyexamples/data"

# Set local variables
inRaster01 = "degs"
inRaster02 = "negs"
inRaster03 = "fourgrd"

# Check out the ArcGIS Spatial Analyst extension license
arcpy.CheckOutExtension("Spatial")

# Execute HighestPosition
outHighestPosition = HighestPosition([inRaster01, inRaster02, inRaster03])

# Save the output 
outHighestPosition.save("C:/sapyexamples/output/outhp")

Environments

  • Auto Commit
  • Cell Size
  • Compression
  • Current Workspace
  • Extent
  • Geographic Transformations
  • Mask
  • Output CONFIG Keyword
  • Output Coordinate System
  • Raster Statistics
  • Scratch Workspace
  • Snap Raster
  • Tile Size

Licensing Information

  • ArcGIS for Desktop Basic: Requires Spatial Analyst
  • ArcGIS for Desktop Standard: Requires Spatial Analyst
  • ArcGIS for Desktop Advanced: Requires Spatial Analyst

Related Topics

  • An overview of the Local toolset
  • Finding the position from an input list meeting a specified criterion
  • Lowest Position
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