Various date utilities

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

is.Date(x)

Date(length = 0L)

NA_Date_

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.

Format

An object of class Date of length 1.

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