/*
* 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.target;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import org.encog.util.csv.CSVFormat;
import org.encog.util.csv.NumberList;
import org.encog.util.normalize.DataNormalization;
import org.encog.util.normalize.NormalizationError;
/**
* Store normalized data to a CSV file.
*/
public class NormalizationStorageCSV implements NormalizationStorage {
/**
* The output file.
*/
private File outputFile;
/**
* The output writer.
*/
private transient PrintWriter output;
/**
* The CSV format to use.
*/
private CSVFormat format;
/**
* Construct a CSV storage object from the specified file.
* @param format The format to use.
* @param file The file to write the CSV to.
*/
public NormalizationStorageCSV(final CSVFormat format, final File file) {
this.format = format;
this.outputFile = file;
}
public NormalizationStorageCSV()
{
this.format = CSVFormat.EG_FORMAT;
}
/**
* Construct a CSV storage object from the specified file.
* @param file The file to write the CSV to.
*/
public NormalizationStorageCSV(final File file) {
this.format = CSVFormat.ENGLISH;
this.outputFile = file;
}
/**
* Close the CSV file.
*/
public void close() {
this.output.close();
}
/**
* Open the CSV file.
*/
public void open(DataNormalization norm) {
try {
final FileWriter outFile = new FileWriter(this.outputFile);
this.output = new PrintWriter(outFile);
} catch (final IOException e) {
throw (new NormalizationError(e));
}
}
/**
* Write an array.
*
* @param data
* The data to write.
* @param inputCount
* How much of the data is input.
*/
public void write(final double[] data, final int inputCount) {
final StringBuilder result = new StringBuilder();
NumberList.toList(this.format, result, data);
this.output.println(result.toString());
}
}