Available with Spatial Analyst license.


A list identifying what the individual input values should be reclassified to in an output raster.


RemapValue remap table image
RemapValue remap table for the Reclassify functions.


The RemapValue object can be used in the Reclassify tool and the WOTable class.

The oldValue can be assigned to NoData by entering NoData (a string) as the newValue.

Reclassifying individual values is usually done when the input values are categorical, for example, land use, or when changing only a few values.


 RemapValue (remapTable)
ParameterExplanationData Type
[[oldValue, newValue],...]

The remap table to be used to remap the old values to new values.

It defines a list to be used to remap the input values. It is a list of lists, with the inner lists being composed of two components.

The components are:

  • oldValue—Represents an original value from the base raster (data type: double, long, string).
  • newValue—Is the new reclassified value (data type: long).

The oldValue can be numeric or string. The newValue must be integer.



PropertyExplanationData Type
(Read and Write)

The remap table that is used to remap the original values to new values.


Code sample

RemapValue example 1 (Python window)

Demonstrates how to create a RemapValue class and use it in the Reclassify tool within the Python window.

import arcpy
from arcpy import env
from import *
env.workspace = "C:/sapyexamples/data"
myRemapValue = RemapValue([["Water", 0], ["Wetlands", 0], ["Barrenland", 1], ["Brushtransitional", 2], ["Builtup",3]])
outReclassRV = Reclassify("landuse", "LANDUSE2", myRemapValue)"C:/sapyexamples/output/reclassrv")
RemapValue example 2 (stand-alone script)

Performs a reclassification with the RemapValue class.

# Name:
# Description: Uses the RemapValue object to execute Reclassify tool.
# Requirements: Spatial Analyst Extension

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

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

# Set local variables
inRaster = "negs"

# Define the RemapValue Object
myRemapVal = RemapValue([[-3,9],[0,1],[3,-4],[4,5],[5,6],[6,4],[7,-7]])

# Execute Reclassify
outReclassRV = Reclassify(inRaster, "VALUE", myRemapVal, "")

# Save the output"C:/sapyexamples/output/reclassrevar2")

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