Package org.onebusaway.transit_data_federation.services.realtime

Examples of org.onebusaway.transit_data_federation.services.realtime.ScheduleDeviationHistogram


      return bean;
    }
   
    int step = 120;

    ScheduleDeviationHistogram histo = _realTimeHistoryService.getScheduleDeviationHistogramForArrivalAndDepartureInstance(
        instance, step);

    if (histo != null) {

      int[] sds = histo.getScheduleDeviations();

      double[] values = new double[sds.length];
      String[] labels = new String[sds.length];
      for (int i = 0; i < sds.length; i++) {
        int sd = sds[i];
        values[i] = sd;
        labels[i] = Integer.toString(sd / 60);
      }

      HistogramBean hb = new HistogramBean();
      hb.setValues(values);
      hb.setCounts(histo.getCounts());
      hb.setLabels(labels);
      bean.setScheduleDeviationHistogram(hb);
    }

    return bean;
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      int stepSizeInSeconds) {

    values = noNans(values);

    if (values.length == 0)
      return new ScheduleDeviationHistogram(new int[0], new int[0]);

    Range r = new Range();
    for (double v : values)
      r.addValue(v);

    if (r.getRange() == 0)
      return new ScheduleDeviationHistogram(new int[] {(int) values[0]},
          new int[] {values.length});
   
    int halfStep = stepSizeInSeconds / 2;

    int from = (int) (Math.floor((r.getMin()-halfStep) / stepSizeInSeconds) * stepSizeInSeconds) + halfStep;
    int to = (int) (Math.ceil((r.getMax()+halfStep) / stepSizeInSeconds) * stepSizeInSeconds) - halfStep;
    int columns = (to - from) / stepSizeInSeconds;

    int[] scheduleDeviations = new int[columns];
    int[] counts = new int[columns];

    for (int i = 0; i < columns; i++)
      scheduleDeviations[i] = from + stepSizeInSeconds * i + halfStep;

    for (double value : values) {
      int index = (int) ((value - from) / stepSizeInSeconds);
      counts[index]++;
    }

    return new ScheduleDeviationHistogram(scheduleDeviations, counts);
  }
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