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

Constructors
Constructor and Description
`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

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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

Class DataHolder

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DataHolder

DataHolder

DataHolder

DataHolder

Method Detail

fillRandom

getArrayList

getArray

clear

add

setRelation

add

read

getDimention

setDimention

analyseSet

getMin

getMax

getSize

getRelation

getName

setName

getElement

getRow

print

toString

main