CrossValidationResult

サマリー

The CrossValidationResult class is returned by the Cross Validation tool and contains access to the cross-validation results that can be generated for any geostatistical layer.

ディスカッション

The CrossValidationResult class is similar to the Result class except for the additional read-only properties that it contains. For detailed help, see the Cross Validation tool.

Only the mean and root mean square error results are available for IDW, Global Polynomial Interpolation, Radial Basis Functions, Diffusion Interpolation With Barriers, and Kernel Interpolation With Barriers.

Percent in 90% Interval, Percent in 95% Interval, and Average CRPS are only available for Empirical Bayesian Kriging and EBK Regression Prediction models.

プロパティ

名前	説明	データタイプ
averageCRPS (読み取り専用)	The average of the Continuous Ranked Probability Scores (CRPS) for all points.	Double
averageStandard (読み取り専用)	The average of the prediction standard errors.	Double
count (読み取り専用)	The number of input samples.	Long
inputCount (読み取り専用)	The number of inputs.	Integer
maxSeverity (読み取り専用)	Specifies the maximum severity of the messages. 0—The tool produced only informative messages. 1—The tool produced a warning message but no error messages. 2—The tool produced an error message.	Integer
meanError (読み取り専用)	The averaged difference between the measured and the predicted values.	Double
meanStandardized (読み取り専用)	Mean standardized error.	Double
messageCount (読み取り専用)	The number of messages.	Integer
outputCount (読み取り専用)	The number of outputs.	Integer
percentIn90Interval (読み取り専用)	The percentage of points that are contained in a 90 percent cross validated confidence interval.	Double
percentIn95Interval (読み取り専用)	The percentage of points that are contained in a 95 percent cross validated confidence interval.	Double
resultID (読み取り専用)	The job ID. If the tool is not a geoprocessing service, the value will be `""`.	String
rootMeanSquare (読み取り専用)	The root mean square error.	Double
rootMeanSquareStandardized (読み取り専用)	The root-mean-square-standardized error should be close to 1 if the prediction standard errors are valid. If the root-mean-square-standardized error is greater than 1, you are underestimating the variability in your predictions. If the root-mean-square-standardized error is less than 1, you are overestimating the variability in your predictions.	Double
status (読み取り専用)	Specifies the job status. 0—The job status is New. 1—The job status is Submitted. 2—The job status is Waiting. 3—The job status is Executing. 4—The job status is Succeeded. 5—The job status is Failed. 6—The job status is Timed out. 7—The job status is Cancelling. 8—The job status is Cancelled. 9—The job status is Deleting. 10—The job status is Deleted.	Integer

方法

`cancel()`

Cancel an associated job.

`getInput(index)`

Returns a given input, either as a string or a RecordSet object.

名前	説明	データタイプ
index	The index position of the input as an integer, or the parameter name.	Variant

戻り値

データタイプ	説明
Variant	The input, either as a `RecordSet` object or a string.

`getMapImageURL({parameter_list}, {height}, {width}, {resolution})`

Returns a map service image for a given output, if one exists.

名前	説明	データタイプ
parameter_list (オプション)	The parameters on which the map service image will be based.	Integer
height (オプション)	The height of the image.	Double
width (オプション)	The width of the image.	Double
resolution (オプション)	The resolution of the image.	Double

戻り値

データタイプ	説明
String	The URL of the map image.

`getMessage(index)`

Returns a specific message by index position.

名前	説明	データタイプ
index	The index position of the message.	Integer

戻り値

データタイプ	説明
String	The geoprocessing message.

`getMessages({severity})`

Returns the geoprocessing tool messages.

名前	説明	データタイプ
severity (オプション)	The type of messages to be returned. 0—Informative, warning, and error messages are returned. 1—Only warning messages are returned. 2—Only error messages are returned. Not specifying a severity level will return all types of messages. The default value is 0.	Integer

名前

説明

データタイプ

severity

(オプション)

The type of messages to be returned.

0—Informative, warning, and error messages are returned.
1—Only warning messages are returned.
2—Only error messages are returned.

Not specifying a severity level will return all types of messages.

The default value is 0.

Integer

戻り値

データタイプ	説明
String	The geoprocessing tool messages.

`getOutput(index)`

Returns a given output, either as a RecordSet object or a string.

If the output of the tool, such as Make Feature Layer, is a layer, getOutput will return a Layer object.

名前	説明	データタイプ
index	The index position of the output as an integer, or the parameter name.	Variant

戻り値

データタイプ説明

データタイプ	説明
Variant	The output, either as a `RecordSet` or a string. If the output of the tool, such as Make Feature Layer, is a layer, `getOutput` will return a `Layer` object. Result outputs can also be accessed by index by integer or by name. For example, to access the record count from the Get Count tool, `result.getOutput(0)`, `result[0]`, `result.getOutput("row_count")`, and `result["row_count"]` are equivalent.

Variant

The output, either as a RecordSet or a string.

If the output of the tool, such as Make Feature Layer, is a layer, getOutput will return a Layer object.

Result outputs can also be accessed by index by integer or by name. For example, to access the record count from the Get Count tool, result.getOutput(0), result[0], result.getOutput("row_count"), and result["row_count"] are equivalent.

`getSeverity(index)`

Specifies the severity of a specific message.

名前	説明	データタイプ
index	The message index position.	Integer

戻り値

データタイプ	説明
Integer	The severity of the specific message. 0—Informative, warning, and error messages are returned. 1—Only warning messages are returned. 2—Only error messages are returned.

データタイプ

説明

Integer

The severity of the specific message.

0—Informative, warning, and error messages are returned.
1—Only warning messages are returned.
2—Only error messages are returned.

コードのサンプル

CrossValidation (Python window)

Perform cross-validation on an input geostatistical layer.

import arcpy
arcpy.env.workspace = "C:/gapyexamples/data"
cvResult = arcpy.ga.CrossValidation("C:/gapyexamples/data/kriging.lyr")
print("Root Mean Square error = " + str(cvResult.rootMeanSquare))

CrossValidation (stand-alone script)

Perform cross-validation on an input geostatistical layer.

# Name: CrossValidation_Example_02.py
# Description: Perform cross validation on an input geostatistical layer.
# Requirements: Geostatistical Analyst extension

# Import system modules
import arcpy

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

# Set local variables
inLayer = "C:/gapyexamples/data/kriging.lyr"

# Run CrossValidation
cvResult = arcpy.ga.CrossValidation(inLayer)
print("Root Mean Square error = " + str(cvResult.rootMeanSquare))