com.bayesserver.data

Class R2CrossValidationTestResult

java.lang.Object

com.bayesserver.data.R2CrossValidationTestResult

All Implemented Interfaces:

CrossValidationTestResult

public final class R2CrossValidationTestResult
extends Object
implements CrossValidationTestResult

Represents the R Squared statistic (Coefficient of determination) on a partition of data.

Constructor Summary

Constructors

Constructor and Description
R2CrossValidationTestResult(double weightedCaseCount, double rSquared, double meanActual, double varianceActual) Initializes a new instance of the R2CrossValidationTestResult class.

Method Summary

Modifier and Type	Method and Description
double	getMeanActual() Gets the mean of the actual column values (as opposed to the predicted values).
Object	getValue() Gets the test result value for this test partitioning.
double	getVarianceActual() Gets the variance of the actual column values (as opposed to the predicted values).
double	getWeightedCaseCount() Gets the number of records in the test partitioning.
Double	numericValue() Returns the test result as a numeric value if supported, otherwise returns null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

R2CrossValidationTestResult

public R2CrossValidationTestResult(double weightedCaseCount,
                                   double rSquared,
                                   double meanActual,
                                   double varianceActual)

Initializes a new instance of the R2CrossValidationTestResult class.

Parameters:

weightedCaseCount - The number of cases (rows) in the partition.

rSquared - the R Squared statistic (Coefficient of determination) on a partition of data.

meanActual - The mean of the actual column values (as opposed to the predicted values).

varianceActual - The variance of the actual column values (as opposed to the predicted values).

Method Detail

getValue

public Object getValue()

Gets the test result value for this test partitioning. This might be the log-likelihood, or the lift, etc...

Specified by:

getValue in interface CrossValidationTestResult

getWeightedCaseCount

public double getWeightedCaseCount()

Gets the number of records in the test partitioning.

Specified by:

getWeightedCaseCount in interface CrossValidationTestResult

numericValue

public Double numericValue()

Returns the test result as a numeric value if supported, otherwise returns null.

Specified by:

numericValue in interface CrossValidationTestResult

Returns:

The numeric test result if supported.

getMeanActual

public double getMeanActual()

Gets the mean of the actual column values (as opposed to the predicted values).

getVarianceActual

public double getVarianceActual()

Gets the variance of the actual column values (as opposed to the predicted values).