Created with_range() fn on RegularTimeSeries.

Dependencies

• [2] XIWTRGR6 Prepare to make external iterator for TimeSeries.
• [*] QYLGEDIV First record.

Change contents

• edit in src/lib.rs at line 300
  [2.1546]

  [2.1546]
  +

  + /// Remove `DatePoints` outside `date_range` from `Self`.

  + pub fn with_range(&mut self, date_range: &DateRange) {

  + let start_date = match date_range.start_date {

  + None => self.ts.0.first().unwrap().date(),

  + Some(start) => start,

  + };

  + let end_date = match date_range.end_date {

  + None => self.ts.0.last().unwrap().date(),

  + Some(end) => end,

  + };

  + self.ts.0.retain(|dp| dp.date >= start_date && dp.date <= end_date)

  + }

  + }

  +

  + #[test]

  + fn test_with_range() {

  + let date1 = MonthlyDate::ym(1995, 11);

  + let date2 = MonthlyDate::ym(1995, 12);

  + let date3 = MonthlyDate::ym(1996, 1);

  + let date4 = MonthlyDate::ym(1996, 2);

  + let date5 = MonthlyDate::ym(1996, 3);

  +

  + let dp1 = DatePoint::new(date1, [1.2]);

  + let dp2 = DatePoint::new(date2, [1.4]);

  + let dp3 = DatePoint::new(date3, [1.6]);

  + let dp4 = DatePoint::new(date4, [1.8]);

  + let dp5 = DatePoint::new(date5, [2.0]);

  +

  + let v = vec!( dp1, dp2, dp3, dp4, dp5);

  +

  + let mut rts: RegularTimeSeries<1> = TimeSeries::new(v).try_into().unwrap();

  +

  + let date_range = DateRange::new(Some(date2), Some(date4));

  +

  + rts.with_range(&date_range);

  +

  + let mut iter = rts.iter(DateRange::new(None, None));

  + assert_eq!(iter.next().unwrap().date(), date2);

  + assert_eq!(iter.next().unwrap().date(), date3);

  + assert_eq!(iter.next().unwrap().date(), date4);

  + assert!(iter.next().is_none());