public class WeightedVariance extends Object implements Statistic
| Constructor and Description |
|---|
WeightedVariance() |
WeightedVariance(boolean unbiased) |
WeightedVariance(double[] data,
double[] weights) |
WeightedVariance(double[] data,
double[] weights,
boolean unbiased) |
| Modifier and Type | Method and Description |
|---|---|
void |
addData(double... data)
Recompute the statistic with more data, incrementally if possible.
|
void |
addData(double[] data,
double[] weights) |
long |
N()
Get the size of the sample.
|
double |
stdev() |
double |
value()
Get the value of the statistic.
|
public WeightedVariance()
public WeightedVariance(boolean unbiased)
public WeightedVariance(double[] data,
double[] weights)
public WeightedVariance(double[] data,
double[] weights,
boolean unbiased)
public void addData(double... data)
Statisticpublic void addData(double[] data,
double[] weights)
public long N()
Statisticpublic double value()
Statisticpublic double stdev()
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