mikera.indexz

Class Indexz

java.lang.Object

mikera.indexz.Indexz

public class Indexz
extends java.lang.Object

Class for static index methods

Method Summary

Modifier and Type	Method and Description
static Index	create(AIndex source)
static Index	create(int[] source)
static Index	create(java.util.List<java.lang.Integer> data)
static Index	createLength(int length)
static Index	createProgression(int start, int length, int skip) Create an Index containing an arithmetic progression
static Index	createRandomChoice(int count, Index source)
static Index	createRandomChoice(int count, int max)
static Index	createRandomPermutation(int length)
static Index	createRandomSelection(int length, int maxValue) Creates a random selection of given length from the numbers 0..maxValue-1 Results are not sorted.
static Index	createRandomSubset(AIndex index, double probability) Returns a random subset of an Index, including each element with the given probability
static Index	createRandomSubset(int length, double probability)
static Index	createSequence(int length) Creates a Index containing the sequence 0, 1, ...
static Index	createSequence(int start, int length) Create an Index containing an arithmetic sequence (a, a+1, a+2 .....

Methods inherited from class java.lang.Object

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

Method Detail

create

public static Index create(java.util.List<java.lang.Integer> data)

create

public static Index create(AIndex source)

create

public static Index create(int[] source)

createProgression

public static Index createProgression(int start,
                                      int length,
                                      int skip)

Create an Index containing an arithmetic progression

createSequence

public static Index createSequence(int start,
                                   int length)

Create an Index containing an arithmetic sequence (a, a+1, a+2 ..... a+length-1)

createSequence

public static Index createSequence(int length)

Creates a Index containing the sequence 0, 1, ... length-1

Parameters:

length -

Returns:

createRandomPermutation

public static Index createRandomPermutation(int length)

createRandomChoice

public static Index createRandomChoice(int count,
                                       int max)

createRandomChoice

public static Index createRandomChoice(int count,
                                       Index source)

createRandomSubset

public static Index createRandomSubset(AIndex index,
                                       double probability)

Returns a random subset of an Index, including each element with the given probability

Parameters:

probability -

Returns:

createRandomSubset

public static Index createRandomSubset(int length,
                                       double probability)

createRandomSelection

public static Index createRandomSelection(int length,
                                          int maxValue)

Creates a random selection of given length from the numbers 0..maxValue-1 Results are not sorted. May contain duplicates

Parameters:

length -

probability -

Returns:

createLength

public static Index createLength(int length)