/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.mahout.math.random; import com.google.common.collect.HashMultiset; import com.google.common.collect.Multiset; import org.apache.mahout.common.RandomUtils; import org.junit.Test; import java.util.List; public class IndianBuffetTest { @Test public void testBasicText() { RandomUtils.useTestSeed(); IndianBuffet<String> sampler = IndianBuffet.createTextDocumentSampler(30); Multiset<String> counts = HashMultiset.create(); int[] lengths = new int[100]; for (int i = 0; i < 30; i++) { final List<String> doc = sampler.sample(); lengths[doc.size()]++; for (String w : doc) { counts.add(w); } System.out.printf("%s\n", doc); } } }