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java.lang.Objectorg.apache.commons.math.stat.descriptive.SummaryStatistics
org.apache.commons.math.stat.descriptive.SummaryStatisticsImpl
Provides a default SummaryStatistics implementation.
| Field Summary | |
protected GeometricMean |
geoMean
geoMean of values that have been added |
protected Max |
max
max of values that have been added |
protected Mean |
mean
mean of values that have been added |
protected Min |
min
min of values that have been added |
protected long |
n
count of values that have been added |
protected SecondMoment |
secondMoment
SecondMoment is used to compute the mean and variance |
protected Sum |
sum
sum of values that have been added |
protected SumOfLogs |
sumLog
sumLog of values that have been added |
protected SumOfSquares |
sumsq
sum of the square of each value that has been added |
protected Variance |
variance
variance of values that have been added |
| Constructor Summary | |
SummaryStatisticsImpl()
Construct a SummaryStatistics |
|
| Method Summary | |
void |
addValue(double value)
Add a value to the data |
void |
clear()
Resets all statistics and storage |
double |
getGeometricMean()
Returns the geometric mean of the values that have been added. |
double |
getMax()
Returns the maximum of the values that have been added. |
double |
getMean()
Returns the mean of the values that have been added. |
double |
getMin()
Returns the minimum of the values that have been added. |
long |
getN()
Returns the number of available values |
double |
getStandardDeviation()
Returns the standard deviation of the values that have been added. |
double |
getSum()
Returns the sum of the values that have been added to Univariate. |
double |
getSumsq()
Returns the sum of the squares of the values that have been added. |
double |
getVariance()
Returns the variance of the values that have been added. |
String |
toString()
Generates a text report displaying summary statistics from values that have been added. |
| Methods inherited from class org.apache.commons.math.stat.descriptive.SummaryStatistics |
equals, getSummary, hashCode, newInstance, newInstance |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Field Detail |
protected long n
protected SecondMoment secondMoment
protected Sum sum
protected SumOfSquares sumsq
protected Min min
protected Max max
protected SumOfLogs sumLog
protected GeometricMean geoMean
protected Mean mean
protected Variance variance
| Constructor Detail |
public SummaryStatisticsImpl()
| Method Detail |
public void addValue(double value)
addValue in class SummaryStatisticsvalue - the value to addpublic long getN()
getN in interface StatisticalSummarygetN in class SummaryStatisticspublic double getSum()
getSum in interface StatisticalSummarygetSum in class SummaryStatisticspublic double getSumsq()
Double.NaN is returned if no values have been added.
getSumsq in class SummaryStatisticspublic double getMean()
Double.NaN is returned if no values have been added.
getMean in interface StatisticalSummarygetMean in class SummaryStatisticspublic double getStandardDeviation()
Double.NaN is returned if no values have been added.
getStandardDeviation in interface StatisticalSummarygetStandardDeviation in class SummaryStatisticspublic double getVariance()
Double.NaN is returned if no values have been added.
getVariance in interface StatisticalSummarygetVariance in class SummaryStatisticspublic double getMax()
Double.NaN is returned if no values have been added.
getMax in interface StatisticalSummarygetMax in class SummaryStatisticspublic double getMin()
Double.NaN is returned if no values have been added.
getMin in interface StatisticalSummarygetMin in class SummaryStatisticspublic double getGeometricMean()
Double.NaN is returned if no values have been added.
getGeometricMean in class SummaryStatisticspublic String toString()
public void clear()
clear in class SummaryStatistics
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