opennlp.tools.ml.model.MutableContext Maven / Gradle / Ivy
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* 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 opennlp.tools.ml.model;
import java.util.Arrays;
/**
* Class used to store parameters or expected values associated with this context which
* can be updated or assigned.
*/
public class MutableContext extends Context {
/**
* Creates a new parameters object with the specified parameters associated with the specified
* outcome pattern.
*
* @param outcomePattern Array of outcomes for which parameters exists for this context.
* @param parameters Parameters for the outcomes specified.
*/
public MutableContext(int[] outcomePattern, double[] parameters) {
super(outcomePattern, parameters);
}
/**
* Assigns the parameter or expected value at the specified outcomeIndex the specified value.
*
* @param outcomeIndex The index of the parameter or expected value to be updated.
* @param value The value to be assigned.
*/
public void setParameter(int outcomeIndex, double value) {
parameters[outcomeIndex]=value;
}
/**
* Updated the parameter or expected value at the specified outcomeIndex by adding the specified value to its current value.
*
* @param outcomeIndex The index of the parameter or expected value to be updated.
* @param value The value to be added.
*/
public void updateParameter(int outcomeIndex, double value) {
parameters[outcomeIndex]+=value;
}
public boolean contains(int outcome) {
return Arrays.binarySearch(outcomes,outcome) >= 0;
}
}