/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* Licensed 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.util.normalize.input;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
/**
* An input field based on a CSV file. This is a text field that is mapped to an
* integer value. The first text value is mapped to 0, the second to 1, and so
* on.
*/
public class InputFieldCSVText extends InputFieldCSV {
/**
* The mappings.
*/
private Map<String,Integer> mappings = new HashMap<String,Integer>();
/**
* The current map index.
*/
private int currentMapIndex;
/**
* Construct an InputFieldCSVText with the default constructor. This is mainly
* used for reflection.
*/
public InputFieldCSVText() {
super();
}
/**
* Construct a input field for a CSV file.
*
* @param usedForNetworkInput
* True if this field is used for actual input to the neural
* network, as opposed to segregation only.
* @param file
* The tile to read.
* @param offset
* The CSV file column to read.
*/
public InputFieldCSVText(final boolean usedForNetworkInput, final File file,
final int offset) {
super(usedForNetworkInput,file,offset);
}
/**
* Add a string mapping.
* @param name The name of the mapping.
* @return The index the mapping was assigned to.
*/
public int addMapping(String name) {
this.mappings.put(name, currentMapIndex);
int result = currentMapIndex;
this.currentMapIndex++;
return result;
}
public Map<String,Integer> getMappings() {
return this.mappings;
}
}