How to use

smile.math.random.MersenneTwister

constructor

/**
 * Initialize with default random number generator engine.
 */
public Random() {
  real = new UniversalGenerator();
  twister = new MersenneTwister();
}

/**
 * Initialize with given seed for default random number generator engine.
 */
public Random(long seed) {
  real = new UniversalGenerator(seed);
  twister = new MersenneTwister(seed);
}

@Nonnull
public static PRNG createPRNG(@Nonnull PRNGType type) {
  final PRNG rng;
  switch (type) {
    case java:
      rng = new JavaRandom();
      break;
    case secure:
      rng = new JavaRandom(new SecureRandom());
      break;
    case smile:
      rng = new SmileRandom();
      break;
    case smileMT:
      rng = new SmileRandom(new smile.math.random.MersenneTwister());
      break;
    case smileMT64:
      rng = new SmileRandom(new smile.math.random.MersenneTwister64());
      break;
    case commonsMath3MT:
      rng = new CommonsMathRandom(new org.apache.commons.math3.random.MersenneTwister());
      break;
    default:
      throw new IllegalStateException("Unexpected type: " + type);
  }
  return rng;
}

@Nonnull
public static PRNG createPRNG(@Nonnull PRNGType type, long seed) {
  final PRNG rng;
  switch (type) {
    case java:
      rng = new JavaRandom(seed);
      break;
    case secure:
      rng = new JavaRandom(new SecureRandom(Primitives.toBytes(seed)));
      break;
    case smile:
      rng = new SmileRandom(seed);
      break;
    case smileMT:
      rng = new SmileRandom(
        new smile.math.random.MersenneTwister(Primitives.hashCode(seed)));
      break;
    case smileMT64:
      rng = new SmileRandom(new smile.math.random.MersenneTwister64(seed));
      break;
    case commonsMath3MT:
      rng = new CommonsMathRandom(
        new org.apache.commons.math3.random.MersenneTwister(seed));
      break;
    default:
      throw new IllegalStateException("Unexpected type: " + type);
  }
  return rng;
}