ISO yearweek to last date (Sunday)

Returns the date of the Sunday that ends a given ISO yearweek.

Usage

isoyearweek_to_last_date(x)

# Default S3 method
isoyearweek_to_last_date(x)

# S3 method for class 'character'
isoyearweek_to_last_date(x)

Arguments

x

ISO yearweek as a character string of the form "yyyy-ww", e.g. "2020-19" for the 19th ISO week of 2020.

Value

A base::Date vector giving the Sunday of each ISO yearweek.

Details

ISO weeks run Monday to Sunday, so the returned date is the Sunday of the supplied yearweek.

See also

isoyear_to_last_date() and season_to_last_date() do the same for an ISO year and for a season. Each takes a different input grammar, so they are not interchangeable. vignette("date_conversion", package = "cstime") for worked date, ISO year and ISO week conversions. No vignette runs this function.

Examples

isoyearweek_to_last_date(c("2019-19", "2020-01"))
#> [1] "2019-05-12" "2020-01-05"