Point

java.lang.Object
- org.ojalgo.data.cluster.Point

All Implemented Interfaces:

java.lang.Comparable<Point>
```
public final class Point
extends java.lang.Object
implements java.lang.Comparable<Point>
```
Immutable coordinate point used by the clustering utilities. A Point wraps a float[] (to minimise memory footprint) and an id. Distance calculations are central to most algorithms.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Point.Factory
Simple factory that generates consecutive ids and ensures consistent dimensionality.

Field Summary

Fields
Modifier and Type Field Description

float[] coordinates
Features

int id
Index/Key

Constructor Summary

Constructors
Constructor Description

Point(int id, float[] coordinates)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareTo(Point ref)`
`double`	`distance(DistanceMeasure measure, Point other)`	Distance using the supplied `DistanceMeasure`.
`boolean`	`equals(java.lang.Object obj)`
`int`	`hashCode()`
`static double[]`	`mean(java.util.Collection<Point> points)`
`static Point.Factory`	`newFactory()`
`static Point`	`of(int id, float... coordinates)`	Creates a point with the supplied id and coordinates (no defensive copy).
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

coordinates
```
public final float[] coordinates
```
Features

id
```
public final int id
```
Index/Key

Constructor Detail

Point

Point(int id,
      float[] coordinates)

Method Detail
- mean
```
public static double[] mean(java.util.Collection<Point> points)
```
- newFactory
```
public static Point.Factory newFactory()
```
- of
```
public static Point of(int id,
                       float... coordinates)
```
  Creates a point with the supplied id and coordinates (no defensive copy). Caller must ensure the coordinate array is not mutated afterwards if logical immutability is desired.
- compareTo
```
public int compareTo(Point ref)
```
  Specified by:
  
  compareTo in interface java.lang.Comparable<Point>
- distance
```
public double distance(DistanceMeasure measure,
                       Point other)
```
  Distance using the supplied DistanceMeasure.
- equals
```
public boolean equals(java.lang.Object obj)
```
  Overrides:
  
  equals in class java.lang.Object
- hashCode
```
public int hashCode()
```
  Overrides:
  
  hashCode in class java.lang.Object
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object