This is an iso-year-week-day method for the calendar_count_between()
generic. It counts the number of precision units between start and end
(i.e., the number of ISO years).
Usage
# S3 method for clock_iso_year_week_day
calendar_count_between(start, end, precision, ..., n = 1L)
Value
An integer representing the number of precision units between
start and end.
Arguments
start, end
[clock_iso_year_week_day]
A pair of iso-year-week-day vectors. These will be recycled to their
common size.
precision
[character(1)]
One of:
"year"
...
These dots are for future extensions and must be empty.
n
[positive integer(1)]
A single positive integer specifying a multiple of precision to use.
# Compute the number of whole ISO years between two datesx <- iso_year_week_day(2001, 1, 2)
y <- iso_year_week_day(2021, 1, c(1, 3))
calendar_count_between(x, y, "year")