lubridate (version 0.1)

ymd: Parse dates according to the order that year, month, and day elements appear...

Description

Parse dates according to the order that year, month, and day elements appear

Usage

ymd(...)

Arguments

...

a character or numeric vector of suspected dates

Value

• a vector of POSIXct date-time objects

Details

Transforms dates stored in character and numeric vectors to POSIXct objects. These functions automatically recognize the following separators: "-", "/", ".", and "" (i.e., no separators).

Users should choose the function that models the order in which year(y), month(m), and date(d) appear in the dates. All inputed dates are considered to have the same order and the same separators.

ymd() type functions automatically assign the Universal Coordinated Time Zone (UTC) to the parsed dates. This time zone can be changed with force_tz.

See Also

parse_date, guess_format

Examples

x <- c("09-01-01", "09-01-02", "09-01-03")
ymd(x)
# "2009-01-01 UTC" "2009-01-02 UTC" "2009-01-03 UTC"
z <- c("2009-01-01", "2009-01-02", "2009-01-03")
ymd(z)
# "2009-01-01 UTC" "2009-01-02 UTC" "2009-01-03 UTC"
ymd(090101)
# "2009-01-01 UTC"
ymd(90101)
# "2009-01-01 UTC"
now() > ymd(20090101) 
# TRUE
dmy(010210)
mdy(010210)