freenet.support.math

Interface RunningAverage

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

BootstrappingDecayingRunningAverage, DecayingKeyspaceAverage, MedianMeanRunningAverage, SimpleRunningAverage, TimeDecayingRunningAverage, TrivialRunningAverage

public interface RunningAverage
extends java.io.Serializable

A running average. That is, something that takes reports as numbers and generates a current value. Synchronized class, including clone().

Method Summary

Modifier and Type	Method and Description
RunningAverage	clone() Copy the RunningAverage (create a snapshot).
long	countReports()
double	currentValue()
void	report(double d)
void	report(long d)
double	valueIfReported(double r) Get what currentValue() would be if we reported some given value

Method Detail

clone

RunningAverage clone()

Copy the RunningAverage (create a snapshot). Deep copy, the new RA won't change when the first one does. Will synchronize on the original during the copy process.

currentValue

double currentValue()

Returns:

report

void report(double d)

Parameters:

d -

report

void report(long d)

Parameters:

d -

valueIfReported

double valueIfReported(double r)

Get what currentValue() would be if we reported some given value

Parameters:

r - the value to mimic reporting

Returns:

the output of currentValue() if we were to report r

countReports

long countReports()

Returns:

the total number of reports on this RunningAverage so far. Used for weighted averages, confidence/newbieness estimation etc.