ml/attribute/JavaAttributeSuite.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package org.apache.spark.ml.attribute;
0019
0020 import org.junit.Assert;
0021 import org.junit.Test;
0022
0023 public class JavaAttributeSuite {
0024
0025   @Test
0026   public void testAttributeType() {
0027     AttributeType numericType = AttributeType.Numeric();
0028     AttributeType nominalType = AttributeType.Nominal();
0029     AttributeType binaryType = AttributeType.Binary();
0030     Assert.assertEquals(numericType, NumericAttribute.defaultAttr().attrType());
0031     Assert.assertEquals(nominalType, NominalAttribute.defaultAttr().attrType());
0032     Assert.assertEquals(binaryType, BinaryAttribute.defaultAttr().attrType());
0033   }
0034
0035   @Test
0036   public void testNumericAttribute() {
0037     NumericAttribute attr = NumericAttribute.defaultAttr()
0038       .withName("age").withIndex(0).withMin(0.0).withMax(1.0).withStd(0.5).withSparsity(0.4);
0039     Assert.assertEquals(attr.withoutIndex(), Attribute.fromStructField(attr.toStructField()));
0040   }
0041
0042   @Test
0043   public void testNominalAttribute() {
0044     NominalAttribute attr = NominalAttribute.defaultAttr()
0045       .withName("size").withIndex(1).withValues("small", "medium", "large");
0046     Assert.assertEquals(attr.withoutIndex(), Attribute.fromStructField(attr.toStructField()));
0047   }
0048
0049   @Test
0050   public void testBinaryAttribute() {
0051     BinaryAttribute attr = BinaryAttribute.defaultAttr()
0052       .withName("clicked").withIndex(2).withValues("no", "yes");
0053     Assert.assertEquals(attr.withoutIndex(), Attribute.fromStructField(attr.toStructField()));
0054   }
0055 }