List of usage examples for org.apache.commons.math3.random RandomDataImpl RandomDataImpl
public RandomDataImpl(RandomGenerator rand)
From source file:fi.smaa.common.RandomUtil.java
private RandomUtil(RandomGenerator engine) { this.random = new RandomDataImpl(engine); this.engine = engine; }
From source file:cc.redberry.core.combinatorics.IntPriorityPermutationsGeneratorTest.java
@Test public void test3() { final int dimm = 6; final int maxPerms = 100; RandomDataImpl rd = new RandomDataImpl(new MersenneTwister()); for (int count = 0; count < 100; ++count) { //Generate combinatorics int pCount = rd.nextInt(1, maxPerms); int[][] permutations = new int[pCount][]; for (int i = 0; i < pCount; ++i) OUTER: while (true) { permutations[i] = rd.nextPermutation(dimm, dimm); for (int j = 0; j < i; ++j) if (Arrays.equals(permutations[i], permutations[j])) continue OUTER; break; }//from w w w .jav a 2 s . c om IntPriorityPermutationsGenerator generator = new IntPriorityPermutationsGenerator(dimm); //adding priorities for (int i = 0; i < pCount; ++i) for (int j = 0; j <= pCount - i; ++j) { addPriority(generator, permutations[i]); generator.reset(); } for (int i = 0; i < pCount; ++i) assertTrue(Arrays.equals(permutations[i], generator.take())); } }