Available with Spatial Analyst license.
Available with Image Analyst license.
Calculates the base e exponential of the cells in a raster.
Input values can be integer or float, and can be negative as well as positive.
You can review some results for both positive and negative floating-point input values in the examples of output values from the Exponential tools.
The base e exponential is the most commonly used exponential function.
Input values less than or equal to -745 will be set to NoData in the output, because these values cannot be accurately represented by 32-bit floating-point numbers.
The output raster from this tool is always floating-point type, regardless of the input value type.
Output values from this tool are always positive.
See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool.
The input values for which to find the base e exponential.
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|
The output raster.
The cell values are the base e exponential of the input values.
This example calculates the base e exponential of the input raster values, and returns the result as a TIFF raster.
import arcpy from arcpy import env from arcpy.sa import * env.workspace = "C:/sapyexamples/data" outExp = Exp("landuse") outExp.save("C:/sapyexamples/output/outexp.tif")
This example calculates the base e exponential of the input raster values.
# Name: Exp_Ex_02.py # Description: Calculates the base e exponential of cells in a raster # 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 inRaster = "landuse" # Execute Exp outExp = Exp(inRaster) # Save the output outExp.save("C:/sapyexamples/output/outexp")
- ArcGIS Desktop Basic: Requires Spatial Analyst or Image Analyst
- ArcGIS Desktop Standard: Requires Spatial Analyst or Image Analyst
- ArcGIS Desktop Advanced: Requires Spatial Analyst or Image Analyst