Counting: year-quarter-day

This is a year-quarter-day method for the calendar_count_between() generic. It counts the number of precision units between start and end (i.e., the number of years or quarters).

Usage

# S3 method for clock_year_quarter_day
calendar_count_between(start, end, precision, ..., n = 1L)

Arguments

start, end

[clock_year_quarter_day]

A pair of year-quarter-day vectors. These will be recycled to their common size.

precision

[character(1)]

One of:

• "year"

• "quarter"

...

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.

Value

An integer representing the number of precision units between start and end.

Examples

# Compute the number of whole quarters between two dates
x <- year_quarter_day(2020, 3, 91)
y <- year_quarter_day(2025, 4, c(90, 92))
calendar_count_between(x, y, "quarter")
#> [1] 20 21

# Note that this is not always the same as the number of whole 3 month
# periods between two dates
x <- as_year_month_day(x)
y <- as_year_month_day(y)
calendar_count_between(x, y, "month", n = 3)
#> [1] 21 21