Example usage for org.jfree.data.time RegularTimePeriod next

List of usage examples for org.jfree.data.time RegularTimePeriod next

  1. HOME
  2. Java
  3. org.jfree
  4. org.jfree.data.time.*
  5. RegularTimePeriod
  6. next

Introduction

In this page you can find the example usage for org.jfree.data.time RegularTimePeriod next.

Prototype

public abstract RegularTimePeriod next();

Source Link

Document

Returns the time period following this one, or null if some limit has been reached.

Usage

From source file:info.financialecology.finance.utilities.datastruct.VersatileTimeSeries.java

/**
 * Creates a new time series with the natural logarithm (base e) of values of each data 
 * point of this time series.  /*from w  w  w  . j  a v a 2  s .c  o m*/
 * 
 * @param name the label of the new time series
 * @return a new time series with the log values
 */
public VersatileTimeSeries operatorLn(String name) {
    VersatileTimeSeries ats = new VersatileTimeSeries(name);
    RegularTimePeriod currentTime = getTimePeriod(0);

    for (int i = 0; i < this.getItemCount(); i++) {
        ats.add(currentTime, Math.log(this.getValue(i).doubleValue()));
        currentTime = currentTime.next();
    }

    return ats;
}

From source file:info.financialecology.finance.utilities.datastruct.VersatileTimeSeries.java

/**
 * Creates a new time series by applying the first-order backward difference 
 * operator to this time series. This can be used for instance to compute the 
 * log returns series from log prices.//ww  w .  jav  a2 s . c om
 * 
 * @param name the label of the new time series
 * @return a new time series with the difference values
 */
public VersatileTimeSeries operatorDifference(String name) {
    VersatileTimeSeries ats = new VersatileTimeSeries(name);
    RegularTimePeriod currentTime = getTimePeriod(0);
    RegularTimePeriod startTime = getTimePeriod(0);

    ats.add(currentTime, 0);

    for (int i = 1; i < this.getItemCount(); i++) {
        currentTime = currentTime.next();
        ats.add(currentTime, this.getValue(i).doubleValue() - this.getValue(i - 1).doubleValue());
    }

    ats.update(startTime, ats.getValue(1)); // Difference not defined for first data point, so choose the simplest interpolation

    return ats;
}

From source file:com.afunms.system.manage.equipManager.java

/**
 * Creates a sample dataset./*from w ww  . ja va 2s.  co m*/
 * 
 * @param count
 *                the item count.
 * 
 * @return the dataset.
 */
private XYDataset createForceDataset(final int count) {
    final TimeSeriesCollection dataset = new TimeSeriesCollection();
    final TimeSeries s1 = new TimeSeries("", Minute.class);
    RegularTimePeriod start = new Minute();
    double force = 3.0;
    for (int i = 0; i < count; i++) {
        s1.add(start, force);
        start = start.next();
        force = Math.max(0.5, force + (Math.random() - 0.5) * 0.5);
    }
    dataset.addSeries(s1);
    return dataset;
}

From source file:com.afunms.system.manage.equipManager.java

/**
 * Creates a sample dataset.// w  w  w  .j av  a 2s  .  com
 * 
 * @param count
 *                the item count.
 * 
 * @return the dataset.
 */
private XYDataset createDirectionDataset(final int count) {
    final TimeSeriesCollection dataset = new TimeSeriesCollection();
    final TimeSeries s1 = new TimeSeries("", Minute.class);
    RegularTimePeriod start = new Minute();
    double direction = 180.0;
    for (int i = 0; i < count; i++) {
        s1.add(start, direction);
        start = start.next();
        direction = direction + (Math.random() - 0.5) * 15.0;
        if (direction < 0.0) {
            direction = direction + 360.0;
        } else if (direction > 360.0) {
            direction = direction - 360.0;
        }
    }
    dataset.addSeries(s1);
    return dataset;
}

From source file:info.financialecology.finance.utilities.datastruct.VersatileTimeSeries.java

/**
 * Constructs a time series object with the unique identifier <code>key</code> 
 * and values taken from the double array <code>dal</code>.
 * //from  ww  w  . j  a va 2 s.co m
 * @param key the unique identifier of the time series
 * @param dal the values provided as a double array
 * @param startTime optional startTime of the series
 */
public VersatileTimeSeries(String key, DoubleArrayList dal, RegularTimePeriod... startTimeOpt) {
    super(key);
    internalParams = new InternalParams();
    RegularTimePeriod currentTime;

    if (startTimeOpt.length != 0) {

        Assertion.assertStrict(startTimeOpt.length == 1, Level.ERR, "Only one "
                + "optional argument allowed for startTime, but " + startTimeOpt.length + " provided");
        currentTime = startTimeOpt[0];

        if (currentTime instanceof org.jfree.data.time.Second)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.SECOND);
        else if (currentTime instanceof org.jfree.data.time.Minute)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.MINUTE);
        else if (currentTime instanceof org.jfree.data.time.Hour)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.HOUR);
        else if (currentTime instanceof org.jfree.data.time.Day)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.DAY);
        else if (currentTime instanceof org.jfree.data.time.Week)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.WEEK);
        else if (currentTime instanceof org.jfree.data.time.Month)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.MONTH);
        else if (currentTime instanceof org.jfree.data.time.Quarter)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.QUARTER);
        else if (currentTime instanceof org.jfree.data.time.Year)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.YEAR);
        else
            Assertion.assertOrKill(false, "The time period " + currentTime.getClass() + " is not implemented ");
    } else { // set a default start time if not provided by caller 

        currentTime = new Day(1, 1, 2014);
        this.getInternalParams().overrideTimePeriod(TIME_PERIOD.DAY);
    }

    for (int i = 0; i < dal.size(); i++) {
        this.add(currentTime, dal.get(i));
        currentTime = currentTime.next();
    }
}

From source file:info.financialecology.finance.utilities.datastruct.VersatileTimeSeries.java

/**
 * Constructs a time series object with the unique identifier <code>key</code> 
 * and values taken from the DoubleTimeSeries <code>dts</code>.
 * /*www  . jav a  2  s  .c  om*/
 * @param key the unique identifier of the time series
 * @param dts the values provided as a {@link DoubleTimeSeries}
 * @param startTime optional startTime of the series
 */
public VersatileTimeSeries(String key, DoubleTimeSeries dts, RegularTimePeriod... startTimeOpt) {
    super(key);
    internalParams = new InternalParams();
    RegularTimePeriod currentTime;

    if (startTimeOpt.length != 0) {

        Assertion.assertOrKill(startTimeOpt.length == 1, "Only one "
                + "optional argument allowed for startTime, but " + startTimeOpt.length + " provided");
        currentTime = startTimeOpt[0];

        if (currentTime instanceof org.jfree.data.time.Second)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.SECOND);
        else if (currentTime instanceof org.jfree.data.time.Minute)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.MINUTE);
        else if (currentTime instanceof org.jfree.data.time.Hour)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.HOUR);
        else if (currentTime instanceof org.jfree.data.time.Day)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.DAY);
        else if (currentTime instanceof org.jfree.data.time.Week)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.WEEK);
        else if (currentTime instanceof org.jfree.data.time.Month)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.MONTH);
        else if (currentTime instanceof org.jfree.data.time.Quarter)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.QUARTER);
        else if (currentTime instanceof org.jfree.data.time.Year)
            this.getInternalParams().overrideTimePeriod(TIME_PERIOD.YEAR);
        else
            Assertion.assertOrKill(false, "The time period " + currentTime.getClass() + " is not implemented ");
    } else { // set a default start time if not provided by caller 

        currentTime = new Day(1, 1, 2014); // TODO set this to TICK once the class is implemented
        this.getInternalParams().overrideTimePeriod(TIME_PERIOD.DAY);
    }

    for (int i = 0; i < dts.size(); i++) {
        this.add(currentTime, dts.getValue(i));
        currentTime = currentTime.next();
    }
}