recur_on_day_of_year() recurs on a specific day of the year.
Arguments
- x
[rrule]A recurrence rule.
- day
[integer]Days of the year to recur on. Values must be from
[-366, -1]and[1, 366].
Examples
library(lubridate, warn.conflicts = FALSE)
on_5th_day_of_year <- yearly() %>% recur_on_day_of_year(5)
alma_search("1999-01-01", "2000-12-31", on_5th_day_of_year)
#> [1] "1999-01-05" "2000-01-05"
# Notice that if you use a `since` date that has a day of the year
# after the specified one, it rolls to the next year
on_5th_day_of_year2 <- yearly(since = "1999-01-06") %>% recur_on_day_of_year(5)
alma_search("1999-01-01", "2000-12-31", on_5th_day_of_year2)
#> [1] "2000-01-05"
# Negative values select from the back, which is useful in leap years
leap_year(as.Date("2000-01-01"))
#> [1] TRUE
last_day_of_year <- yearly() %>% recur_on_day_of_year(-1)
last_day_of_year_bad <- yearly() %>% recur_on_day_of_year(365)
alma_search("1999-01-01", "2000-12-31", last_day_of_year)
#> [1] "1999-12-31" "2000-12-31"
alma_search("1999-01-01", "2000-12-31", last_day_of_year_bad)
#> [1] "1999-12-31" "2000-12-30"