Package smile.validation.metric

Class Accuracy

java.lang.Object
smile.validation.metric.Accuracy
All Implemented Interfaces:
Serializable, ClassificationMetric
public class Accuracy extends Object implements ClassificationMetric
The accuracy is the proportion of true results (both true positives and true negatives) in the population.
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Accuracy
    instance
    Default instance.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Accuracy()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    of(int[] truth, int[] prediction)
    Calculates the classification accuracy.
    double
    score(int[] truth, int[] prediction)
    Returns a score to measure the quality of classification.
    String
    toString()
     

    Methods inherited from class java.lang.Object

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

  • Field Details

    • instance

      public static final Accuracy instance
      Default instance.

  • Constructor Details

    • Accuracy

      public Accuracy()

  • Method Details

    • score

      public double score(int[] truth, int[] prediction)
      Description copied from interface: ClassificationMetric
      Returns a score to measure the quality of classification.
      Specified by:
      score in interface ClassificationMetric
      Parameters:
      truth - the true class labels.
      prediction - the predicted class labels.
      Returns:
      the metric.

    • of

      public static double of(int[] truth, int[] prediction)
      Calculates the classification accuracy.
      Parameters:
      truth - the ground truth.
      prediction - the prediction.
      Returns:
      the metric.

    • toString

      public String toString()
      Overrides:
      toString in class Object