chargerlib

Class FloatStatistics

Object

chargerlib.FloatStatistics

public class FloatStatistics
extends Object

Used for holding basic statistics on a set of measurements. The statistics kept are a count (i.e., the cardinality of the set), the min and max, and the sum. The actual values (i.e., the series) are not stored.

Field Summary

Fields

Modifier and Type	Field and Description
int	count
float	max
float	min
(package private) String	name
private float	square_sum
float	sum

Constructor Summary

Constructors

Constructor and Description
FloatStatistics(String n)

Method Summary

Modifier and Type	Method and Description
void	addValue(float val) Add a value to the set.
float	getAverage() Get the average of the series so far.
float	getStdDeviation() Get the standard deviation of the series so far.
void	reset() Resets all the statistics associated with the statistics object.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name

String name

count

public int count

max

public float max

min

public float min

sum

public float sum

square_sum

private float square_sum

Constructor Detail

FloatStatistics

public FloatStatistics(String n)

Parameters:

n - the name of the variable captured by these stats.

Method Detail

reset

public void reset()

Resets all the statistics associated with the statistics object. Sets the count to zero, max to a hugely negative number, min to a hugely positive number and the sum to 0.

addValue

public void addValue(float val)

Add a value to the set.

Parameters:

val -

getAverage

public float getAverage()

Get the average of the series so far. If count is zero, returns 0.

Returns:

the average of all the values in the series, zero if there are none.

getStdDeviation

public float getStdDeviation()

Get the standard deviation of the series so far. If count is zero, returns 0.

Returns:

the standard deviation of all the values in the series, zero if there are none.