mdy.Date: Convert numeric dates to Date object, and vice versa

In arsenal: An Arsenal of 'R' Functions for Large-Scale Statistical Summaries

Description

Convert numeric dates for month, day, and year to Date object, and vice versa.

Usage

mdy.Date(month, day, year, yearcut = 120)

Date.mdy(date)

is.Date(x)

Arguments

month	integer, month (1-12).
day	integer, day of the month (1-31, depending on the month).
year	integer, either 2- or 4-digit year. If two-digit number, will add 1900 onto it, depending on range.
yearcut	cutoff for method to know if to convert to 4-digit year.
date	A date value.
x	An object.

Details

Test if an object is a date.

More work may need to be done with yearcut and 2-digit years. Best to give a full 4-digit year.

Value

mdy.Date returns a Date object, and Date.mdy returns a list with integer values for month, day, and year. is.Date returns a single logical value.

See Also

Date, DateTimeClasses

Examples

mdy.Date(9, 2, 2013)

tmp <- mdy.Date(9, 2, 2013)
Date.mdy(tmp)

is.Date(tmp)

Example output

[1] "2013-09-02"
$month
[1] 9

$day
[1] 2

$year
[1] 2013

[1] TRUE

arsenal documentation built on June 5, 2021, 1:06 a.m.