Java Doc for SummaryStatistics.java in  » Science » Apache-commons-math-1.1 » org » apache » commons » math » stat » descriptive » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Apache commons math 1.1 » org.apache.commons.math.stat.descriptive   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.commons.math.stat.descriptive.SummaryStatistics All known Subclasses:   org.apache.commons.math.stat.descriptive.SummaryStatisticsImpl, SummaryStatistics abstract public class SummaryStatistics implements StatisticalSummary,Serializable(Code) Abstract factory class for univariate statistical summaries. version:    $Revision: 348519 $ $Date: 2005-11-23 12:12:18 -0700 (Wed, 23 Nov 2005) $ Method Summary abstract public  void addValue(double v)      abstract public  void clear()      public  boolean equals(Object object)      Returns true iff object is a SummaryStatistics instance and all statistics have the same values as this. Parameters:   object - the object to test equality against. abstract public  double getGeometricMean()      abstract public  double getMax()      abstract public  double getMean()      abstract public  double getMin()      abstract public  long getN()      abstract public  double getStandardDeviation()      Returns the standard deviation of the available values. The standard deviation, Double.NaN if no values have been added or 0.0 for a single value set. abstract public  double getSum()      Returns the sum of the values that have been added to Univariate. public  StatisticalSummary getSummary()      Return a StatisticalSummaryValues instance reporting current statistics. abstract public  double getSumsq()      Returns the sum of the squares of the available values. abstract public  double getVariance()      Returns the variance of the available values. The variance, Double.NaN if no values have been added or 0.0 for a single value set. public  int hashCode()      public static  SummaryStatistics newInstance(Class cls)      Create an instance of a SummaryStatistics Parameters:   cls - the type of SummaryStatistics object tocreate. public static  SummaryStatistics newInstance()      Create an instance of a SummaryStatistics a new SummaryStatistics instance. Method Detail addValue abstract public void addValue(double v)(Code) Adds the value to the data to be summarized Parameters:   v - the value to be added clear abstract public void clear()(Code) Resets all statistics equals public boolean equals(Object object)(Code) Returns true iff object is a SummaryStatistics instance and all statistics have the same values as this. Parameters:   object - the object to test equality against. true if object equals this getGeometricMean abstract public double getGeometricMean()(Code) Returns the geometric mean of the available values The geometricMean, Double.NaN if no values have been added, or if the productof the available values is less than or equal to 0. getMax abstract public double getMax()(Code) Returns the maximum of the available values The max or Double.NaN if no values have been added. getMean abstract public double getMean()(Code) Returns the arithmetic mean of the available values The mean or Double.NaN if no values have been added. getMin abstract public double getMin()(Code) Returns the minimum of the available values The min or Double.NaN if no values have been added. getN abstract public long getN()(Code) Returns the number of available values The number of available values getStandardDeviation abstract public double getStandardDeviation()(Code) Returns the standard deviation of the available values. The standard deviation, Double.NaN if no values have been added or 0.0 for a single value set. getSum abstract public double getSum()(Code) Returns the sum of the values that have been added to Univariate. The sum or Double.NaN if no values have been added getSummary public StatisticalSummary getSummary()(Code) Return a StatisticalSummaryValues instance reporting current statistics. Current values of statistics getSumsq abstract public double getSumsq()(Code) Returns the sum of the squares of the available values. The sum of the squares or Double.NaN if no values have been added. getVariance abstract public double getVariance()(Code) Returns the variance of the available values. The variance, Double.NaN if no values have been added or 0.0 for a single value set. hashCode public int hashCode()(Code) Returns hash code based on values of statistics hash code newInstance public static SummaryStatistics newInstance(Class cls) throws InstantiationException, IllegalAccessException(Code) Create an instance of a SummaryStatistics Parameters:   cls - the type of SummaryStatistics object tocreate. a new factory. throws:   InstantiationException - is thrown if the object can not becreated. throws:   IllegalAccessException - is thrown if the type's defaultconstructor is not accessible. newInstance public static SummaryStatistics newInstance()(Code) Create an instance of a SummaryStatistics a new SummaryStatistics instance. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)