public class Mean extends Object implements Statistic
E(X) = Σ (xi) / NThis implementation supports incremental update of the statistic. The R equivalent function is
mean
.Constructor and Description |
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Mean()
Construct an empty
Mean calculator. |
Mean(double[] data)
Construct a
Mean calculator,
initialized with a sample. |
Mean(Mean that)
Copy constructor.
|
Modifier and Type | Method and Description |
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void |
addData(double... data)
Recompute the statistic with more data, incrementally if possible.
|
long |
N()
Get the size of the sample.
|
String |
toString() |
double |
value()
Get the value of the statistic.
|
public Mean()
Mean
calculator.public Mean(double[] data)
Mean
calculator,
initialized with a sample.data
- a samplepublic Mean(Mean that)
that
- a Mean
calculatorpublic void addData(double... data)
Statistic
public double value()
Statistic
public long N()
Statistic
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