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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/*
* DateToNumeric.java
* Copyright (C) 2006-2017 University of Waikato, Hamilton, New Zealand
*/
package weka.filters.unsupervised.attribute;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Vector;
import weka.core.*;
import weka.core.Capabilities.Capability;
import weka.filters.SimpleBatchFilter;
/**
*
* A filter for turning numeric attributes into date attributes.
* The numeric value is assumed to be the number of milliseconds since January 1, 1970, 00:00:00 GMT,
* corresponding to the given date."
*
*
*
*
* Valid options are:
*
*
*
* -R <col1,col2-col4,...>
* Specifies list of attributes to turn into date ones. Only numeric attributes will be converted.
* First and last are valid indexes.
* (default: first-last)
*
*
*
* -V
* Invert matching sense of column indexes.
*
*
*
* -F <value index>
* Sets the output date format string (default corresponds to ISO-8601).
*
*
*
*
* @author eibe (eibe at waikato dot ac dot nz)
* @version $Revision: 14274 $
*/
public class NumericToDate extends SimpleBatchFilter implements WeightedAttributesHandler, WeightedInstancesHandler {
/** for serialization */
private static final long serialVersionUID = -6514657821295776239L;
/** Stores which columns to turn into date attributes */
protected Range m_Cols = new Range("first-last");
/** The default columns to turn into date attributes */
protected String m_DefaultCols = "first-last";
/** The default output date format. Corresponds to ISO-8601 format. */
protected static final SimpleDateFormat DEFAULT_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
/** The output date format. */
protected SimpleDateFormat m_DateFormat = DEFAULT_FORMAT;
/**
* Returns a string describing this filter
*
* @return a description of the filter suitable for displaying in the
* explorer/experimenter gui
*/
@Override
public String globalInfo() {
return "A filter for turning numeric attributes into date attributes." +
"The numeric value is assumed to be the number of milliseconds since January 1, 1970, 00:00:00 GMT, " +
"corresponding to the given date.";
}
/**
* Gets an enumeration describing the available options.
*
* @return an enumeration of all the available options.
*/
@Override
public Enumeration