/*
* 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.ml.data.market;
import org.encog.engine.network.activation.ActivationFunction;
import org.encog.ml.data.temporal.TemporalDataDescription;
/**
* This class is used to describe the type of financial data that is needed.
* Each piece of data can be used for input, prediction or both. If used for
* input, it will be used as data to help predict. If used for prediction, it
* will be one of the values predicted. It is possible, and quite common, to use
* data from both input and prediction.
*
* @author jheaton
*
*/
public class MarketDataDescription extends TemporalDataDescription {
/**
* The ticker symbol to be loaded.
*/
private final TickerSymbol ticker;
/**
* The type of data to be loaded from the specified ticker symbol.
*/
private final MarketDataType dataType;
/**
* Construct a MarketDataDescription item.
*
* @param ticker
* The ticker symbol to use.
* @param dataType
* The data type needed.
* @param type
* The normalization type.
* @param activationFunction
* The activation function to apply to this data, can be null.
* @param input
* Is this field used for input?
* @param predict
* Is this field used for prediction?
*/
public MarketDataDescription(final TickerSymbol ticker,
final MarketDataType dataType, final Type type,
final ActivationFunction activationFunction, final boolean input,
final boolean predict) {
super(activationFunction, type, input, predict);
this.ticker = ticker;
this.dataType = dataType;
}
/**
* Construct a MarketDataDescription item.
*
* @param ticker
* The ticker symbol to use.
* @param dataType
* The data type needed.
* @param type
* The normalization type.
* @param input
* Is this field used for input?
* @param predict
* Is this field used for prediction?
*/
public MarketDataDescription(final TickerSymbol ticker,
final MarketDataType dataType, final Type type, final boolean input,
final boolean predict) {
this(ticker, dataType, type, null, input, predict);
}
/**
* Construct a MarketDataDescription item.
*
* @param ticker
* The ticker symbol to use.
* @param dataType
* The data type needed.
* @param input
* Is this field used for input?
* @param predict
* Is this field used for prediction?
*/
public MarketDataDescription(final TickerSymbol ticker,
final MarketDataType dataType, final boolean input,
final boolean predict) {
this(ticker, dataType, Type.PERCENT_CHANGE, null, input, predict);
}
/**
* @return the dataType
*/
public MarketDataType getDataType() {
return this.dataType;
}
/**
* @return the ticker
*/
public TickerSymbol getTicker() {
return this.ticker;
}
}