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java.lang.Objectorg.apache.commons.math.stat.descriptive.AbstractUnivariateStatistic
public abstract class AbstractUnivariateStatistic
Abstract base class for all implementations of the
UnivariateStatistic
interface.
Provides a default implementation of evaluate(double[]),
delegating to evaluate(double[], int, int)
in the natural way.
Also includes a test
method that performs generic parameter
validation for the evaluate
methods.
Constructor Summary | |
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AbstractUnivariateStatistic()
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Method Summary | |
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abstract UnivariateStatistic |
copy()
Returns a copy of the statistic with the same internal state. |
double |
evaluate()
Returns the result of evaluating the statistic over the stored data. |
double |
evaluate(double[] values)
Returns the result of evaluating the statistic over the input array. |
abstract double |
evaluate(double[] values,
int begin,
int length)
Returns the result of evaluating the statistic over the specified entries in the input array. |
double[] |
getData()
Get a copy of the stored data array. |
void |
setData(double[] values)
Set the data array. |
void |
setData(double[] values,
int begin,
int length)
Set the data array. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public AbstractUnivariateStatistic()
Method Detail |
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public void setData(double[] values)
The stored value is a copy of the parameter array, not the array itself
values
- data array to store (may be null to remove stored data)evaluate()
public double[] getData()
public void setData(double[] values, int begin, int length)
values
- data array to storebegin
- the index of the first element to includelength
- the number of elements to includeevaluate()
public double evaluate()
The stored array is the one which was set by previous calls to
public double evaluate(double[] values)
evaluate
in interface UnivariateStatistic
values
- input array
public abstract double evaluate(double[] values, int begin, int length)
evaluate
in interface UnivariateStatistic
values
- the input arraybegin
- the index of the first element to includelength
- the number of elements to include
public abstract UnivariateStatistic copy()
copy
in interface UnivariateStatistic
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