popEpi (version 0.3.1)

is.Date: Test if object is a Date object

Description

Tests if an object is a Date object and returns a logical vector of length 1. IDate objects are also Date objects, but date objects from package date are not.

Usage

is.Date(obj)

Arguments

obj

object to test on

See Also

get.yrs, is_leap_year, as.Date

Examples

## the base "capital Date" format
da <- as.Date("2000-01-01")
is.Date(da) ## TRUE
date::is.date(da) ## FALSE

## IDate format from data.table
da <- as.IDate("2000-01-01")
is.Date(da) ## TRUE
date::is.date(da) ## FALSE

## from package "date"
da <- date::as.date("1jan2000")
is.Date(da) ## FALSE
date::is.date(da) ## TRUE