| /* |
| * 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.samoa.instances; |
| |
| /** |
| * The Class FilteredSparseInstance. |
| * <p> |
| * This class is an extension to the original SparseInstance. |
| * It has been created to be used with feature selection |
| * algorithms for data streams. |
| * In contrast to SparseInstance objects, missing values are |
| * represented as NaNs instead of 0s (zeros). |
| * This allows learners to skip features with missing values. |
| * |
| * @author Jean Paul Barddal |
| */ |
| public class FilteredSparseInstance extends SparseInstance { |
| |
| /** |
| * Instantiates a new sparse instance. |
| * |
| * @param d the d |
| * @param res the res |
| */ |
| public FilteredSparseInstance(double d, double[] res) { |
| super(d, res); |
| } |
| |
| |
| /** |
| * Instantiates a new sparse instance. |
| * |
| * @param inst the inst |
| */ |
| public FilteredSparseInstance(InstanceImpl inst) { |
| super(inst); |
| } |
| |
| /** |
| * Instantiates a new sparse instance. |
| * |
| * @param numberAttributes the number attributes |
| */ |
| public FilteredSparseInstance(double numberAttributes) { |
| super(numberAttributes); |
| } |
| |
| /** |
| * Instantiates a new sparse instance. |
| * |
| * @param weight the weight |
| * @param attributeValues the attribute values |
| * @param indexValues the index values |
| * @param numberAttributes the number attributes |
| */ |
| public FilteredSparseInstance(double weight, double[] attributeValues, int[] indexValues, int numberAttributes) { |
| super(numberAttributes); |
| this.weight = weight; |
| this.instanceData = new FilteredSparseInstanceData(attributeValues, indexValues, numberAttributes); |
| } |
| |
| } |