Examples of org.joda.time.DateTime.minusMonths()

org.joda.time.DateTime.minusMonths()
Returns a copy of this datetime minus the specified number of months.
The calculation will do its best to only change the month field retaining the same day of month. However, in certain circumstances, it may be necessary to alter smaller fields. For example, 2007-05-31 minus one month cannot result in 2007-04-31, so the day of month is adjusted to 2007-04-30.
The following three lines are identical in effect:
```
 DateTime subtracted = dt.minusMonths(6); DateTime subtracted = dt.minus(Period.months(6)); DateTime subtracted = dt.withFieldAdded(DurationFieldType.months(), -6); 
```
This datetime instance is immutable and unaffected by this method call. @param months the amount of months to subtract, may be negative @return the new datetime minus the increased months @since 1.1

    for (int i = 0; i < counts.length; i++) {
      assertEquals("count at index " + i + " should be " + (i + 1), i + 1, counts[i]);
    }


    // Check a query for twelve months past
    counts = aggregateCounterRepository.getCounts(counterName, new Interval(end.minusMonths(11), end), AggregateCountResolution.month).getCounts();
    assertEquals(12, counts.length);


    counts = aggregateCounterRepository.getCounts(counterName, 3, end, AggregateCountResolution.month).getCounts();
    assertEquals(3, counts.length);
    assertEquals(6, counts[2]);

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        Assert.assertEquals(2L, cubeWrapper.getUniqueUsersForDay(monthBegin));
        Assert.assertEquals(2L, cubeWrapper.getUniqueUsersForDay(monthBegin.minusDays(1)));
        
        Assert.assertEquals(2L, cubeWrapper.getUniqueUsersForMonth(monthBegin));
        Assert.assertEquals(2L, cubeWrapper.getUniqueUsersForMonth(monthBegin.minusMonths(1)));
    }
}

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                           1,
                           0,
                           0,
                           0);
      
      firstDateOfMonth = firstDateOfMonth.minusMonths(PeriodSelector.this.numberOfPeriods);
      
      return firstDateOfMonth;
    }
    public DateTime getUpperBound(){
      DateTime lastDateOfMonth = new DateTime(this.year,

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            List<Map<TagGroup, Double>> daily = Lists.newArrayList();
            List<Map<TagGroup, Double>> weekly = Lists.newArrayList();
            List<Map<TagGroup, Double>> monthly = Lists.newArrayList();


            // get last month data
            ReadWriteData lastMonthData = new DataWriter(prefix + "hourly_" + prodName + "_" + AwsUtils.monthDateFormat.print(monthDateTime.minusMonths(1)), true).getData();


            // aggregate to daily, weekly and monthly
            int dayOfWeek = monthDateTime.getDayOfWeek();
            int daysFromLastMonth = dayOfWeek - 1;
            int lastMonthNumHours = monthDateTime.minusMonths(1).dayOfMonth().getMaximumValue() * 24;

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            ReadWriteData lastMonthData = new DataWriter(prefix + "hourly_" + prodName + "_" + AwsUtils.monthDateFormat.print(monthDateTime.minusMonths(1)), true).getData();


            // aggregate to daily, weekly and monthly
            int dayOfWeek = monthDateTime.getDayOfWeek();
            int daysFromLastMonth = dayOfWeek - 1;
            int lastMonthNumHours = monthDateTime.minusMonths(1).dayOfMonth().getMaximumValue() * 24;
            for (int hour = 0 - daysFromLastMonth * 24; hour < data.getNum(); hour++) {
                if (hour < 0) {
                    // handle data from last month, add to weekly
                    Map<TagGroup, Double> prevData = lastMonthData.getData(lastMonthNumHours + hour);
                    for (TagGroup tagGroup: tagGroups) {

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        for (int i = 0; i < 12; i++) {
            // create a new period
            DateTimePeriod period = DateTimePeriod.createMonth(now.getYear(), now.getMonthOfYear(), zone);
            periods.add(period);
            // subtract 1 month
            now = now.minusMonths(1);
        }


        Collections.reverse(periods);


        return periods;

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        for (int i = 0; i < 12; i++) {
            // create a new period
            DateTimePeriod period = createMonth(now.getYear(), now.getMonthOfYear(), zone);
            periods.add(period);
            // subtract 1 month
            now = now.minusMonths(1);
        }


        return periods;
    }

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