lubridate (version 1.8.0)

month: Get/set months component of a date-time

Description

Date-time must be a POSIXct, POSIXlt, Date, Period, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, and fts objects.

Usage

month(x, label = FALSE, abbr = TRUE, locale = Sys.getlocale("LC_TIME"))
month(x) <- value

Value

If label = FALSE: month as number (1-12, 1 = January, 12 = December), otherwise as an ordered factor.

Arguments

x

a date-time object

label

logical. TRUE will display the month as a character string such as "January." FALSE will display the month as a number.

abbr

logical. FALSE will display the month as a character string label, such as "January". TRUE will display an abbreviated version of the label, such as "Jan". abbr is disregarded if label = FALSE.

locale

for month, locale to use for month names. Default to current locale.

value

a numeric object

Examples

x <- ymd("2012-03-26")
month(x)
month(x) <- 1
month(x) <- 13
month(x) > 3

month(ymd(080101))
month(ymd(080101), label = TRUE)
month(ymd(080101), label = TRUE, abbr = FALSE)
month(ymd(080101) + months(0:11), label = TRUE)