edu.illinois.cs.cogcomp.core.stats

Class OneVariableStats

java.lang.Object

edu.illinois.cs.cogcomp.core.stats.OneVariableStats

All Implemented Interfaces:

Serializable

public class OneVariableStats
extends Object
implements Serializable

Statistics of one variable.

Author:

Vivek Srikumar

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
OneVariableStats()

Method Summary

Modifier and Type	Method and Description
void	add(double d)
double	max()
double	mean()
double	min()
void	reset()
double	std() Calculate the Population Standard Deviation.
double	stdErr() Calculate the standard error of the mean (SEM): the standard deviation of the sample-mean's estimate of a population mean.

Methods inherited from class java.lang.Object

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

Constructor Detail

OneVariableStats

public OneVariableStats()

Method Detail

reset

public void reset()

add

public void add(double d)

mean

public double mean()

std

public double std()

Calculate the Population Standard Deviation. $\sqrt(\frac{\sum(X-M)^2}{n})$

Returns:

Population Standard Deviation

stdErr

public double stdErr()

Calculate the standard error of the mean (SEM): the standard deviation of the sample-mean's estimate of a population mean.

Returns:

The SEM, which is std() divided by the square root of the sample size.

min

public double min()

max

public double max()