This is an iso-year-week-day method for the
generic. It counts the number of
precision units between
(i.e., the number of ISO years).
# S3 method for clock_iso_year_week_day calendar_count_between(start, end, precision, ..., n = 1L)
- start, end
A pair of iso-year-week-day vectors. These will be recycled to their common size.
These dots are for future extensions and must be empty.
A single positive integer specifying a multiple of