/*
* Encog(tm) Core v3.0 - Java Version
* http://www.heatonresearch.com/encog/
* http://code.google.com/p/encog-java/
* Copyright 2008-2011 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.app.analyst.commands;
import java.io.File;
import org.encog.app.analyst.EncogAnalyst;
import org.encog.app.analyst.csv.normalize.AnalystNormalizeCSV;
import org.encog.app.analyst.script.prop.ScriptProperties;
import org.encog.app.analyst.util.AnalystReportBridge;
import org.encog.util.csv.CSVFormat;
import org.encog.util.logging.EncogLogging;
/**
* The normalize command is used to normalize data. Data normalization generally
* maps values from one number range to another, typically to -1 to 1.
*
*/
public class CmdNormalize extends Cmd {
/**
* The name of this command.
*/
public static final String COMMAND_NAME = "NORMALIZE";
/**
* Construct the normalize command.
*
* @param theAnalyst
* The analyst to use.
*/
public CmdNormalize(final EncogAnalyst theAnalyst) {
super(theAnalyst);
}
/**
* {@inheritDoc}
*/
@Override
public final boolean executeCommand(final String args) {
// get filenames
final String sourceID = getProp().getPropertyString(
ScriptProperties.NORMALIZE_CONFIG_SOURCE_FILE);
final String targetID = getProp().getPropertyString(
ScriptProperties.NORMALIZE_CONFIG_TARGET_FILE);
final File sourceFile = getScript().resolveFilename(sourceID);
final File targetFile = getScript().resolveFilename(targetID);
EncogLogging.log(EncogLogging.LEVEL_DEBUG, "Beginning normalize");
EncogLogging.log(EncogLogging.LEVEL_DEBUG, "source file:" + sourceID);
EncogLogging.log(EncogLogging.LEVEL_DEBUG, "target file:" + targetID);
// mark generated
getScript().markGenerated(targetID);
// get formats
final CSVFormat inputFormat = getScript()
.determineInputFormat(sourceID);
final CSVFormat outputFormat = getScript().determineOutputFormat();
// prepare to normalize
final AnalystNormalizeCSV norm = new AnalystNormalizeCSV();
norm.setScript(getScript());
getAnalyst().setCurrentQuantTask(norm);
norm.setReport(new AnalystReportBridge(getAnalyst()));
final boolean headers = getScript().expectInputHeaders(sourceID);
norm.analyze(sourceFile, headers, inputFormat, getAnalyst());
norm.setOutputFormat(outputFormat);
norm.setProduceOutputHeaders(true);
norm.normalize(targetFile);
getAnalyst().setCurrentQuantTask(null);
return norm.shouldStop();
}
/**
* {@inheritDoc}
*/
@Override
public final String getName() {
return CmdNormalize.COMMAND_NAME;
}
}