ArcMap

InList

Available with Spatial Analyst license.

Summary

Determines which values from the first input are contained in a set of other inputs, on a cell-by-cell basis.

For each cell, if the value of the first input raster is found in any of the list of other inputs, that value will be assigned to the output raster. If it is not found, the output cell will be NoData.

Illustration

InList illustration
OutRas = InList(InRas1,[0, 2, 3, 7])

Usage

  • If all of the inputs are integer, the output raster will be integer. If any of the inputs are floating point, the output will be floating point.

  • In the list of input rasters, the order is not relevant to the outcome of this tool.

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

Syntax

InList (in_raster_or_constant, in_raster_or_constants)
ParameterExplanationData Type
in_raster_or_constant

The input raster whose values will be looked for in the input list.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer; Constant
in_raster_or_constants
[in_raster_or_constant,...]

A list of input rasters in which the cell values from the first input will be looked for.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer; Constant

Return Value

NameExplanationData Type
out_raster

The output raster.

Raster

Code sample

InList example 1 (Python window)

This example determines which cell values in the first input are found in the set of other input rasters.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outInList = InList("redlandsc1", ["redlandsc2", "redlandsc3"])
outInList.save("C:/sapyexamples/output/outinlist.tif")
InList example 2 (stand-alone script)

This example determines which cell values in the first input are found in the set of other input rasters.

# Name: InList_Ex_02.py
# Description: Determines which values from the first input are
#              contained in the other inputs
# 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
inRaster1 = "redlandsc1"
inRaster2 = "redlandsc2"
inRaster3 = "redlandsc3"

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

# Execute InList
outInList = InList(inRaster1, [inRaster2, inRaster3])

# Save the output 
outInList.save("C:/sapyexamples/output/outinlist")

Environments

Licensing information

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

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