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kddml.Core.DataSources.NumericalStatistic Class Reference

Inheritance diagram for kddml.Core.DataSources.NumericalStatistic:

kddml.Core.DataSources.AttributeStatistic kddml.Core.DataSources.NumericalStatisticManager kddml.Core.DataSources.AttributeStatisticManager kddml.Core.DataSources.AttributeStatisticManager List of all members.

Public Member Functions

double getMean ()
double getStandardDeviation ()
double getVariance ()
String toString ()
Double getMinValue ()
Double getMaxValue ()

Protected Member Functions

Attribute toAttribute ()

Detailed Description

This class is used to represent statistics on numerical attributes.

Title: KDDML

Description: Knowledge Discovery in Database Environment

Copyright: Copyright (c) 2003-2005

Company: Universita' di Pisa - Dipartimento di Informatica

Author:
Andrea Romei (romei@di.unipi.it)
Version:
2.0.16


Member Function Documentation

double kddml.Core.DataSources.NumericalStatistic.getMean  ) 
 

Returns the mean of the values.

Returns:
double

Implements kddml.Core.DataSources.NumericalStatisticManager.

double kddml.Core.DataSources.NumericalStatistic.getStandardDeviation  ) 
 

Returns the standard deviation of the values (i.e. the squared root of the variance).

Returns:
double

Implements kddml.Core.DataSources.NumericalStatisticManager.

double kddml.Core.DataSources.NumericalStatistic.getVariance  ) 
 

Returns the variance of the values.

Returns:
double

Implements kddml.Core.DataSources.NumericalStatisticManager.

String kddml.Core.DataSources.NumericalStatistic.toString  ) 
 

Returns a representation of this object as string.

Returns:
String

Reimplemented from kddml.Core.DataSources.AttributeStatistic.

Double kddml.Core.DataSources.NumericalStatistic.getMinValue  ) 
 

Returns the minimum value. Returns null if the number of instances is 0.

Returns:
Double

Implements kddml.Core.DataSources.NumericalStatisticManager.

Double kddml.Core.DataSources.NumericalStatistic.getMaxValue  ) 
 

Returns the maximum value. Returns null if the number of instances is 0.

Returns:
Double

Implements kddml.Core.DataSources.NumericalStatisticManager.

Attribute kddml.Core.DataSources.NumericalStatistic.toAttribute  )  [protected, virtual]
 

Returns a representation of this object as weka.core.Attribute.

Returns:
Attribute

Implements kddml.Core.DataSources.AttributeStatistic.


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