Various date utilities

Date() mirrors primitive contructors in base R (double(), character() etc.)

Usage

is.Date(x)

Date(length = 0L)

NA_Date_

Format

An object of class Date of length 1.

Arguments

x

an R object

length

A non-negative number specifying the desired length. Supplying an argument of length other than one is an error.

See also

is.instant(), is.timespan(), is.POSIXt(), POSIXct()

Examples

is.Date(as.Date("2009-08-03")) # TRUE
#> [1] TRUE
is.Date(difftime(now() + 5, now())) # FALSE
#> [1] FALSE