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

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

Convert numeric dates to Date object, and vice versa

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)

eheinzen/arsenal documentation built on Sept. 11, 2022, 10:59 a.m.