clock (version 0.7.1)

year-month-day-group: Grouping: year-month-day

Description

This is a year-month-day method for the calendar_group() generic.

Grouping for a year-month-day object can be done at any precision, as long as x is at least as precise as precision.

Usage

# S3 method for clock_year_month_day
calendar_group(x, precision, ..., n = 1L)

Value

x grouped at the specified precision.

Arguments

x

[clock_year_month_day]

A year-month-day vector.

precision

[character(1)]

One of:

• "year"

• "month"

• "day"

• "hour"

• "minute"

• "second"

• "millisecond"

• "microsecond"

• "nanosecond"

...

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.

Examples

steps <- duration_days(seq(0, 100, by = 5))
x <- year_month_day(2019, 1, 1)
x <- as_naive_time(x) + steps
x <- as_year_month_day(x)
x

# Group by a single month
calendar_group(x, "month")

# Or multiple months
calendar_group(x, "month", n = 2)

# Group 3 days of the month together
y <- year_month_day(2019, 1, 1:12)
calendar_group(y, "day", n = 3)

# Group by 5 nanosecond of the current second
z <- year_month_day(
  2019, 1, 2, 1, 5, 20, 1:20,
  subsecond_precision = "nanosecond"
)
calendar_group(z, "nanosecond", n = 5)