nrandom 1.0.1

Random index in array

app_random

Random index in array

/// Return random number with probability
/// Ex: length = 5
/// 1 2 3 4 5 => default probability = 100 / length = 20% each number
/// If choose 1
/// => probability of number 1 will DECREASE A HALF (changeable) -> from 20% to 10%
/// => 10% from number 1 will increase all the remaining 4 numbers
/// 1    2      3      4      5
/// 10%  22.5%  22.5%  22.5%  22.5%
/// Continue, next random is number 3
/// 1       2       3       4       5
/// 13.75%  26.25%  11.25%  26.25%  26.25%
///

Usage

// Arrange
final int length = 5;
final NRandom nrandom = NRandom(length);

// Act
final int index = nrandom.getNextIndex();