DataPoint

java.lang.Object
- jminhep.cluster.DataPoint

All Implemented Interfaces:

Serializable
```
public class DataPoint
extends Object
implements Serializable
```
Represents an abstraction for a data point in many-dimensional space

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

DataPoint(double[] xx)
Creates a new instance of a data point

DataPoint(double[] xx, int dim)
Creates a new instance of a data point

Constructors
Constructor and Description
`DataPoint(double[] xx)` Creates a new instance of a data point
`DataPoint(double[] xx, int dim)` Creates a new instance of a data point

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`assignToCluster(int _clusterNumber)` Assigns the data point to a cluster
`static double`	`distance(DataPoint dp1, DataPoint dp2)` Returns the distance between two data points
`static double`	`distanceSqrt(DataPoint dp1, DataPoint dp2)` Returns the squared distance between two data points
`double`	`getAttribute(int index)` Returns the attribute of data point
`int`	`getClusterNumber()` Returns the cluster to which the data point belongs
`int`	`getDimension()` Get dimension of the point
`static void`	`main(String[] args)` Main method -- to test the DataPoint class
`void`	`showAttributes()` Print all attributes of a data point
`String`	`toString()` Returns a string representation of this DataPoint

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DataPoint
```
public DataPoint(double[] xx,
                 int dim)
```
    Creates a new instance of a data point
    
    Parameters:
    
    xx - array of dimension dim
    
    dim - dimension
  - DataPoint
```
public DataPoint(double[] xx)
```
    Creates a new instance of a data point
    
    Parameters:
    
    xx - array
- Method Detail
  - getDimension
```
public int getDimension()
```
    Get dimension of the point
    
    Returns:
    
    dimension (int)
  - assignToCluster
```
public void assignToCluster(int _clusterNumber)
```
    Assigns the data point to a cluster
    
    Parameters:
    
    _clusterNumber - the cluster to which this data point is to be assigned
  - getClusterNumber
```
public int getClusterNumber()
```
    Returns the cluster to which the data point belongs
    
    Returns:
    
    the cluster number to which the data point belongs
  - getAttribute
```
public double getAttribute(int index)
```
    Returns the attribute of data point
    
    Parameters:
    
    index - current idex
    
    Returns:
    
    the value in many dimensions
  - showAttributes
```
public void showAttributes()
```
    Print all attributes of a data point
  - distance
```
public static double distance(DataPoint dp1,
                              DataPoint dp2)
```
    Returns the distance between two data points
    
    Parameters:
    
    dp1 - the first data point
    
    dp2 - the second data point
    
    Returns:
    
    the distance between the two data points (double)
  - distanceSqrt
```
public static double distanceSqrt(DataPoint dp1,
                                  DataPoint dp2)
```
    Returns the squared distance between two data points
    
    Parameters:
    
    dp1 - the first data point
    
    dp2 - the second data point
    
    Returns:
    
    the distance between the two data points
  - toString
```
public String toString()
```
    Returns a string representation of this DataPoint
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representation of this data point
  - main
```
public static void main(String[] args)
```
    Main method -- to test the DataPoint class
    
    Parameters:
    
    args - command line arguments

Class DataPoint

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DataPoint

DataPoint

Method Detail

getDimension

assignToCluster

getClusterNumber

getAttribute

showAttributes

distance

distanceSqrt

toString

main