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Class weka.classifiers.evaluation.NumericPrediction
java.lang.Object
|
+----weka.classifiers.evaluation.NumericPrediction
- public class NumericPrediction
- extends Object
- implements Prediction, Serializable
Encapsulates an evaluatable numeric prediction: the predicted class value
plus the actual class value.
- 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 String toString()
- Gets a human readable representation of this prediction.
- Returns:
- a human readable representation of this prediction.
- Overrides:
- toString in class Object
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