Grouping: year-day

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

Grouping for a year-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_day
calendar_group(x, precision, ..., n = 1L)

Arguments

x

[clock_year_day]

A year-day vector.

precision

[character(1)]

One of:

• "year"

• "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.

Value

x grouped at the specified precision.

Examples

x <- seq(as_naive_time(year_month_day(2019, 1, 1)), by = 5, length.out = 20)
x <- as_year_day(x)
x
#> <year_day<day>[20]>
#>  [1] "2019-001" "2019-006" "2019-011" "2019-016" "2019-021" "2019-026"
#>  [7] "2019-031" "2019-036" "2019-041" "2019-046" "2019-051" "2019-056"
#> [13] "2019-061" "2019-066" "2019-071" "2019-076" "2019-081" "2019-086"
#> [19] "2019-091" "2019-096"

# Group by day of the current year
calendar_group(x, "day", n = 20)
#> <year_day<day>[20]>
#>  [1] "2019-001" "2019-001" "2019-001" "2019-001" "2019-021" "2019-021"
#>  [7] "2019-021" "2019-021" "2019-041" "2019-041" "2019-041" "2019-041"
#> [13] "2019-061" "2019-061" "2019-061" "2019-061" "2019-081" "2019-081"
#> [19] "2019-081" "2019-081"