Calculate Z-value (Geostatistical Analyst)

Available with Geostatistical Analyst license.

Summary

Uses the interpolation model in a geostatistical layer to predict a value at a single location.

Usage

• This tool is generally used only in a model or in scripting.

Parameters

Dialog

Label	Explanation	Data Type
Input geostatistical layer	The geostatistical layer to be analyzed.	Geostatistical Layer
Input point	The x,y coordinate of the point for which the Z-value will be calculated.	Point

Derived Output

Label	Explanation	Data Type
Output Z-value	The predicted Z-value at the specified x,y coordinate.	Double

Python

arcpy.ga.GACalculateZValue(in_geostat_layer, point_coord)

Name	Explanation	Data Type
in_geostat_layer	The geostatistical layer to be analyzed.	Geostatistical Layer
point_coord	The x,y coordinate of the point for which the Z-value will be calculated.	Point

Derived Output

Name	Explanation	Data Type
out_z_value	The predicted Z-value at the specified x,y coordinate.	Double

Code sample

GACalculateZValue (Python window)

Predict a value at a location using a kriging geostatistical layer.

import arcpy
arcpy.env.workspace = "C:/gapyexamples/data"
outCZV = arcpy.GACalculateZValue_ga("C:/gapyexamples/data/Kriging.lyr", 
                                    "-2000000 -50000")
print(outCZV)

GACalculateZValue (stand-alone script)

Predict a value at a location using a kriging geostatistical layer.

# Name: CalculateZValue_Example_02.py
# Description: Uses the interpolation model in a geostatistical 
#              layer to predict a value at a single location.
# Requirements: Geostatistical Analyst Extension

# Import system modules
import arcpy

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

# Set local variables
inGALayer = "C:/gapyexamples/data/Kriging.lyr"
pointCoord = "-2000000 -50000"

# Execute CalculateZValue
outCZV = arcpy.GACalculateZValue_ga(inGALayer, pointCoord)

# Print results
print(outCZV)

Environments

Current Workspace

Licensing information

• Basic: Requires Geostatistical Analyst
• Standard: Requires Geostatistical Analyst
• Advanced: Requires Geostatistical Analyst