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Class weka.classifiers.evaluation.NumericPrediction
java.lang.Object
|
+----weka.classifiers.evaluation.NumericPrediction
- public class NumericPrediction
- extends java.lang.Object
- implements Prediction, java.io.Serializable
Encapsulates an evaluatable numeric prediction: the predicted class value
plus the actual class value.
- Version:
- $Revision: 1.5 $
- Author:
- Len Trigg (len@intelligenesis.net)
NumericPrediction(double, double)
- Creates the NumericPrediction object with a default weight of 1.0.
NumericPrediction(double, double, double)
- Creates the NumericPrediction object.
actual()
- Gets the actual class value.
error()
- Calculates the prediction error.
predicted()
- Gets the predicted class value.
toString()
- Gets a human readable representation of this prediction.
weight()
- Gets the weight assigned to this prediction.
NumericPrediction
public NumericPrediction(double actual,
double predicted)
Creates the NumericPrediction object with a default weight of 1.0.
- Parameters:
actual
- the actual value, or MISSING_VALUE.
predicted
- the predicted value, or MISSING_VALUE.
NumericPrediction
public NumericPrediction(double actual,
double predicted,
double weight)
Creates the NumericPrediction object.
- Parameters:
actual
- the actual value, or MISSING_VALUE.
predicted
- the predicted value, or MISSING_VALUE.
weight
- the weight assigned to the prediction.
actual
public double actual()
Gets the actual class value.
- Returns:
- the actual class value, or MISSING_VALUE if no
prediction was made.
predicted
public double predicted()
Gets the predicted class value.
- Returns:
- the predicted class value, or MISSING_VALUE if no
prediction was made.
weight
public double weight()
Gets the weight assigned to this prediction. This is typically the weight
of the test instance the prediction was made for.
- Returns:
- the weight assigned to this prediction.
error
public double error()
Calculates the prediction error. This is defined as the predicted
value minus the actual value.
- Returns:
- the error for this prediction, or
MISSING_VALUE if either the actual or predicted value
is missing.
toString
public java.lang.String toString()
Gets a human readable representation of this prediction.
- Returns:
- a human readable representation of this prediction.
- Overrides:
- toString in class java.lang.Object
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