001/*
002 * Copyright (c) 2015-2020, Oracle and/or its affiliates. All rights reserved.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.tribuo.classification.dtree;
018
019import com.oracle.labs.mlrg.olcut.config.ConfigurationManager;
020import com.oracle.labs.mlrg.olcut.config.Options;
021import com.oracle.labs.mlrg.olcut.config.UsageException;
022import org.tribuo.Model;
023import org.tribuo.Trainer;
024import org.tribuo.classification.Label;
025import org.tribuo.classification.TrainTestHelper;
026import org.tribuo.data.DataOptions;
027
028import java.io.IOException;
029import java.util.logging.Logger;
030
031/**
032 * Build and run a decision tree classifier for a standard dataset.
033 */
034public class TrainTest {
035
036    private static final Logger logger = Logger.getLogger(TrainTest.class.getName());
037
038    /**
039     * Command line options.
040     */
041    public static class TrainTestOptions implements Options {
042        @Override
043        public String getOptionsDescription() {
044            return "A simple train/test program for Classification trees.";
045        }
046
047        /**
048         * The data loading options.
049         */
050        public DataOptions generalOptions;
051        /**
052         * The CART trainer options.
053         */
054        public CARTClassificationOptions cartOptions;
055    }
056
057    /**
058     * Runs a TrainTest CLI.
059     * @param args the command line arguments
060     * @throws IOException if there is any error reading the examples.
061     */
062    public static void main(String[] args) throws IOException {
063        TrainTestOptions o = new TrainTestOptions();
064        try (ConfigurationManager cm = new ConfigurationManager(args,o)){
065            Trainer<Label> trainer = o.cartOptions.getTrainer();
066            Model<Label> model = TrainTestHelper.run(cm, o.generalOptions, trainer);
067            if (o.cartOptions.cartPrintTree) {
068                logger.info(model.toString());
069            }
070        } catch (UsageException e) {
071            logger.info(e.getMessage());
072        }
073    }
074}