# Int (Spatial Analyst)

## Summary

Converts each cell value of a raster to an integer by truncation.

## Illustration

 OutRas = Int (InRas1)

## Usage

• The input values can be either positive or negative.

• If rounding is preferred to truncating, add a 0.5 input raster prior to performing the operation.

• There is a difference between the Int tool and the Round Down tool. For example, given the following two values Int always truncates the number:

• 1.5 becomes 1
• -1.5 becomes -1

while for the same two values, Round Down returns:

• 1.5 becomes 1.0
• -1.5 becomes -2.0

Another difference is that Round Down outputs floating-point values, while Int only outputs integer values.

• The maximum supported range of integer raster values is -2,147,483,648 (minimum size determined by -231) to 2,147,483,647 (maximum size determined by 231 – 1). If Int is used on a floating-point raster which has cells with values outside this range, those cells will be NoData in the output raster.

• Storing categorical (discrete) data as an integer raster will use significantly less disk space than the same information stored as a floating-point raster. Whenever possible, it is recommended to convert floating-point rasters to integer with this tool.

## Syntax

Int (in_raster_or_constant)
 Parameter Explanation Data Type in_raster_or_constant The input raster to be converted to integer. 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 input values converted to integers by truncation. Raster

## Code Sample

Int example 1 (Python window)

This example converts the input values to integer by truncation.

```import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outInt.save("C:/sapyexamples/output/outint2")```
Int example 2 (stand-alone script)

This example converts the input values to integer by truncation.

```# Name: Int_Ex_02.py
# Description: Converts each cell value of a raster to an integer by truncation
# 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

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

# Execute Int
outInt = Int(inRaster)

# Save the output
outInt.save("C:/sapyexamples/output/outint")```

## Licensing Information

ArcView: Requires Spatial Analyst or 3D Analyst
ArcEditor: Requires Spatial Analyst or 3D Analyst
ArcInfo: Requires Spatial Analyst or 3D Analyst

6/29/2011