Square Root (Spatial Analyst)

Summary

Calculates the square root of the cell values in a raster.

Illustration

OutRas = SquareRoot(InRas1)

Usage

• Input values that are less than 0 will be NoData in the output raster.

• The output raster from this tool is always floating point type, regardless of the input value type.

Syntax

SquareRoot (in_raster_or_constant)

Parameter	Explanation	Data Type
in_raster_or_constant	The input values to find the square root of. In order to use a number as an input for this parameter, the cell size and extent must first be set in the environment.	Raster Layer | Constant

Return Value

Name	Explanation	Data Type
out_raster	The output raster. The cell values are the square root of the input cell values.	Raster

Code Sample

SquareRoot example 1 (Python window)

This example finds the square root of the values in the input GRID raster and gererates the output as an IMG raster.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outSquareRoot = SquareRoot("elevation")
outSquareRoot.save("C:/sapyexamples/output/outsqrt.img")

SquareRoot example 2 (stand-alone script)

This example finds the square root of the values in the input GRID raster.

# Name: SquareRoot_Ex_02.py
# Description: Calculates the square root of cells in a raster
# Requirements: Spatial Analyst Extension
# Author: ESRI

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

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

# Set local variables
inRaster = "elevation"

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

# Execute SquareRoot
outSQRT = SquareRoot(inRaster)

# Save the output 
outSQRT.save("C:/sapyexamples/output/outsqrt")

Environments

Cell Size, Current Workspace, Mask, Output Coordinate System, Extent, Scratch Workspace, Snap Raster

Licensing Information

ArcView: Requires Spatial Analyst

ArcEditor: Requires Spatial Analyst

ArcInfo: Requires Spatial Analyst