epiweek: Constructor for epiweek objects

In grates: Grouped Date Classes

Constructor for epiweek objects

Description

epiweek() is a constructor for ⁠<grates_epiweek>⁠ objects.

Usage

epiweek(year = integer(), week = integer())

Arguments

year	⁠[integer]⁠ Vector representing the year associated with week. double vectors will be converted via as.integer(floor(x)).
week	⁠[integer]⁠ Vector representing the week associated with 'year. double vectors will be converted via as.integer(floor(x)).

Details

Epiweeks are defined to start on a Sunday and ⁠<grates_epiweek>⁠ objects are stored as the number of weeks (starting at 0) from the first Sunday after the Unix Epoch (1970-01-01). That is, the number of seven day periods from 1970-01-04.

Internally they have the same representation as a ⁠<grates_yearweek_sunday>⁠ object so are akin to an alias but with a marginally more efficient implementation.

Value

A ⁠<grates_epiweek>⁠ object.

See Also

as_epiweek() and new_epiweek().

Examples

epiweek(year = 2000L, week = 3L)

grates documentation built on July 9, 2023, 7:09 p.m.