NaturalRanking.IntList

java.lang.Object
- org.apache.commons.statistics.ranking.NaturalRanking.IntList

Enclosing class:

NaturalRanking
```
private static class NaturalRanking.IntList
extends java.lang.Object
```
An expandable list of int values. This allows tracking array positions without using boxed values in a List<Integer>.

Field Summary

Fields
Modifier and Type Field Description

private int[] data
The list data.

private int max
The maximum size of array to allocate.

private int size
The size of the list.

Constructor Summary

Constructors
Constructor Description

IntList(int max)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) void`	`add(int value)`	Adds the value to the list.
`(package private) void`	`clear()`	Clear the list.
`(package private) int`	`get(int index)`	Gets the element at the specified `index`.
`(package private) void`	`shuffle(java.util.function.IntUnaryOperator randomIntFunction)`	Shuffle the list.
`(package private) int`	`size()`	Gets the number of elements in the list.
`private static void`	`swap(int[] array, int i, int j)`	Swaps the two specified elements in the specified array.

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

- Field Detail
  - max
```
private final int max
```
    The maximum size of array to allocate.
  - size
```
private int size
```
    The size of the list.
  - data
```
private int[] data
```
    The list data. Initialised with space to store a tie of 2 values.
- Constructor Detail
  - IntList
```
IntList(int max)
```
    Parameters:
    
    max - Maximum size of array to allocate. Can use the length of the parent array for which this is used to track indices.
- Method Detail
  - add
```
void add(int value)
```
    Adds the value to the list.
    
    Parameters:
    
    value - the value
  - get
```
int get(int index)
```
    Gets the element at the specified index.
    
    Parameters:
    
    index - Element index
    
    Returns:
    
    the element
  - size
```
int size()
```
    Gets the number of elements in the list.
    
    Returns:
    
    the size
  - clear
```
void clear()
```
    Clear the list.
  - shuffle
```
void shuffle(java.util.function.IntUnaryOperator randomIntFunction)
```
    Shuffle the list.
    
    Parameters:
    
    randomIntFunction - Function maps positive x randomly to [0, x).
  - swap
```
private static void swap(int[] array,
                         int i,
                         int j)
```
    Swaps the two specified elements in the specified array.
    
    Parameters:
    
    array - Data array
    
    i - First index
    
    j - Second index