public class Mean<N extends Number> extends MappedAccumulator<N>
Calculate the Arithmetic mean from a finite sample of N observations.
Modifier and Type | Field and Description |
---|---|
protected double |
_mean |
_samples
Constructor and Description |
---|
Mean() |
Modifier and Type | Method and Description |
---|---|
void |
accumulate(N value)
Accumulate the given value.
|
Mean<N> |
clone() |
boolean |
equals(Object obj) |
double |
getMean()
Return the mean value of the accumulated values.
|
double |
getStandardError()
Return the
Standard error
of the calculated mean.
|
int |
hashCode() |
String |
toString() |
getSamples, map
protected double _mean
public Mean()
public double getMean()
Double.NaN
if getSamples() == 0
.public double getStandardError()
public void accumulate(N value)
Accumulator
accumulate
in interface Accumulator<N extends Number>
accumulate
in class MappedAccumulator<N extends Number>
value
- the value to accumulate.NullPointerException
- if the given value
is null
.public int hashCode()
hashCode
in class MappedAccumulator<N extends Number>
public boolean equals(Object obj)
equals
in class MappedAccumulator<N extends Number>
© 2007-2014 Franz Wilhelmstötter (2014-03-07 19:35)