A Simple S3-Class for Year-Isoweek Dates

Source: R/date_yw.R

A simple data type for storing year-isoweek dates in a human readable integer format, e.g.: the 52nd isoweek of 2012 is stored as 201252. Supports simple arithmetic operations such as + and - as well formatting.

date_yw(y, w)

is_date_yw(x)

as_date_yw(x)

Arguments

y

year
w

week (optional)
x

any R object

Value

date_yw returns an object of type date_yw

is_date_yw returns TRUE or FALSE depending on whether its argument is of type date_yw or not.

as_date_yw attempts to coerce its argument to date_yw

See also

format.date_yw(), seq.date_yw(), date_xx_arithmetic()

Other date_xx subclasses: date_ym(), date_yq(), date_y()

Examples

date_yw(2013, 12)
#> [1] "2013-W12"

as_date_yw(201612)
#> [1] "2016-W12"