com.itemanalysis.psychometrics.histogram

Class SturgesBinCalculation

java.lang.Object

com.itemanalysis.psychometrics.histogram.SturgesBinCalculation

All Implemented Interfaces:

BinCalculation

public class SturgesBinCalculation
extends java.lang.Object
implements BinCalculation

Sturges' method for computing the number of bins.

Author:

J. Patrick Meyer

Constructor Summary

Constructors

Constructor and Description
SturgesBinCalculation(double n, double min, double max)

Method Summary

Modifier and Type	Method and Description
double	binWidth() Gets the bin width according to the number of bins calculated by Sturges' method.
BinCalculationType	getType()
int	numberOfBins() Gets the number of bins as computed by Sturges' method.

Methods inherited from class java.lang.Object

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

Constructor Detail

SturgesBinCalculation

public SturgesBinCalculation(double n,
                             double min,
                             double max)

Method Detail

numberOfBins

public int numberOfBins()

Gets the number of bins as computed by Sturges' method.

Specified by:

numberOfBins in interface BinCalculation

Returns:

number of bins.

binWidth

public double binWidth()

Gets the bin width according to the number of bins calculated by Sturges' method.

Specified by:

binWidth in interface BinCalculation

Returns:

bin width.

getType

public BinCalculationType getType()

Specified by:

getType in interface BinCalculation