year_day: Calendar: year-day

Description Usage Arguments Details Value Examples

View source: R/gregorian-year-day.R

Description

year_day() constructs a calendar vector from the Gregorian year and day of the year.

Usage

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year_day(
  year,
  day = NULL,
  hour = NULL,
  minute = NULL,
  second = NULL,
  subsecond = NULL,
  ...,
  subsecond_precision = NULL
)

Arguments

year

[integer]

The year. Values [-32767, 32767] are generally allowed.

day

[integer / NULL]

The day of the year. Values [1, 366] are allowed.

hour

[integer / NULL]

The hour. Values [0, 23] are allowed.

minute

[integer / NULL]

The minute. Values [0, 59] are allowed.

second

[integer / NULL]

The second. Values [0, 59] are allowed.

subsecond

[integer / NULL]

The subsecond. If specified, subsecond_precision must also be specified to determine how to interpret the subsecond.

If using milliseconds, values [0, 999] are allowed.

If using microseconds, values [0, 999999] are allowed.

If using nanoseconds, values [0, 999999999] are allowed.

...

These dots are for future extensions and must be empty.

subsecond_precision

[character(1) / NULL]

The precision to interpret subsecond as. One of: "millisecond", "microsecond", or "nanosecond".

Details

Fields are recycled against each other.

Fields are collected in order until the first NULL field is located. No fields after the first NULL field are used.

Value

A year-day calendar vector.

Examples

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# Just the year
x <- year_day(2019:2025)
x

year_day(2020, 1:10)

# Last day of the year, accounting for leap years
year_day(2019:2021, "last")

# Precision can go all the way out to nanosecond
year_day(2019, 100, 2, 40, 45, 200, subsecond_precision = "nanosecond")

clock documentation built on July 23, 2021, 1:06 a.m.