jminhep.cluster
Class DataHolder

java.lang.Object
  jminhep.cluster.DataHolder

All Implemented Interfaces:

Serializable

public class DataHolder
extends Object
implements Serializable

Represents an abstraction for a data holder in many dimensional space. All cluster operations are done using this holder

See Also:

Serialized Form

Constructor Summary

DataHolder()
Creates a new empty instance of data holder

DataHolder(DataPoint xMin, DataPoint xMax, int Dim, int Size)
Creates data holder with random number Input:

DataHolder(int dim)
Creates a new empty instance of data point

DataHolder(String name)
Creates a new empty instance of data point

Method Summary

void	add(DataPoint p) Add a data point to the holder
void	add(double[] xx) Add a new instance to data holder in form of array
void	analyseSet() Analyse the data holder by calculating min and max.
void	clear() Clear current data holder
void	fillRandom(DataPoint xMin, DataPoint xMax, int Dim, int Size) Fill an existing data holder with random numbers
DataPoint[]	getArray() Get the data in form of Array
ArrayList	getArrayList() Get all elements of the data holder in form of an ArrayList
int	getDimention() Get the dimension of the data
double[]	getElement(int n) Get array of elements at position n of the data holder
DataPoint	getMax() Get Max values of the data
DataPoint	getMin() Get Min values of the data holder
String	getName(int i) Get name of the i-th attribute
String	getRelation() Get name of the data holder (i.e.
DataPoint	getRow(int n) Get DataPoint at the position n
int	getSize() Get size of the data holder
static void	main(String[] args) Main method -- to test the DataPoint class
void	print() Print all entries of the data holder
void	read(String file) Reads the input data from the ARFF file and stores in the data holder
void	setDimention(int Dim) Set the dimension of the data
void	setName(int i, String title) Set the title for ith component
void	setRelation(String s) Set relation (name) of the data holder
String	toString() Convert to string all entries of the data holder

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DataHolder

public DataHolder()

Creates a new empty instance of data holder

DataHolder

public DataHolder(int dim)

Creates a new empty instance of data point

Parameters:

dim - dimension

DataHolder

public DataHolder(String name)

Creates a new empty instance of data point

Parameters:

name - Name of this data holder

DataHolder

public DataHolder(DataPoint xMin,
                  DataPoint xMax,
                  int Dim,
                  int Size)

Creates data holder with random number Input:

Parameters:

xMin - min number of DataPoint

xMax - max number of DataPoint

Dim - integer dimension of DataPoint

Size - number of rows

Method Detail

fillRandom

public void fillRandom(DataPoint xMin,
                       DataPoint xMax,
                       int Dim,
                       int Size)

Fill an existing data holder with random numbers

Parameters:

xMin - Min DataPoint

xMax - Max DataPoint

Dim - Dimension of DataPoint

Size - Number of rows

getArrayList

public ArrayList getArrayList()

Get all elements of the data holder in form of an ArrayList

Returns:

ArrayList

getArray

public DataPoint[] getArray()

Get the data in form of Array

Returns:

DataPoint[]

clear

public void clear()

Clear current data holder

add

public void add(DataPoint p)

Add a data point to the holder

Parameters:

p - New point

setRelation

public void setRelation(String s)

Set relation (name) of the data holder

Parameters:

s - name to be set

add

public void add(double[] xx)

Add a new instance to data holder in form of array

Parameters:

xx - array

read

public void read(String file)

Reads the input data from the ARFF file and stores in the data holder

getDimention

public int getDimention()

Get the dimension of the data

Returns:

dimension (int)

setDimention

public void setDimention(int Dim)

Set the dimension of the data

Parameters:

Dim - dimension

analyseSet

public void analyseSet()

Analyse the data holder by calculating min and max. You can access these values by calling GetMin() anf GetMax()

getMin

public DataPoint getMin()

Get Min values of the data holder

Returns:

DataPoint

getMax

public DataPoint getMax()

Get Max values of the data

Returns:

DataPoint

getSize

public int getSize()

Get size of the data holder

Returns:

Size of the data holder (int)

getRelation

public String getRelation()

Get name of the data holder (i.e. relation)

Returns:

name of the data holder

getName

public String getName(int i)

Get name of the i-th attribute

Returns:

Name of the attribute

setName

public void setName(int i,
                    String title)

Set the title for ith component

Parameters:

i - Index of a component

title - New title

getElement

public double[] getElement(int n)

Get array of elements at position n of the data holder

Returns:

array with the data at a position n (double[])

getRow

public DataPoint getRow(int n)

Get DataPoint at the position n

Returns:

DataPoint

print

public void print()

Print all entries of the data holder

toString

public String toString()

Convert to string all entries of the data holder

Overrides:

toString in class Object

main

public static void main(String[] args)

Main method -- to test the DataPoint class

Parameters:

args - command line arguments