View source: R/accessors-day.r
day | R Documentation |
Get/set days component of a date-time
day(x)
mday(x)
wday(
x,
label = FALSE,
abbr = TRUE,
week_start = getOption("lubridate.week.start", 7),
locale = Sys.getlocale("LC_TIME")
)
qday(x)
yday(x)
day(x) <- value
mday(x) <- value
qday(x) <- value
qday(x) <- value
wday(x, week_start = getOption("lubridate.week.start", 7)) <- value
yday(x) <- value
x |
a POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, or fts object. |
label |
logical. Only available for wday. TRUE will display the day of the week as an ordered factor of character strings, such as "Sunday." FALSE will display the day of the week as a number. |
abbr |
logical. Only available for wday. FALSE will display the day of the week as an ordered factor of character strings, such as "Sunday." TRUE will display an abbreviated version of the label, such as "Sun". abbr is disregarded if label = FALSE. |
week_start |
day on which week starts following ISO conventions: 1 means Monday
and 7 means Sunday (default). When |
locale |
locale to use for day names. Default to current locale. |
value |
(for |
mday()
and yday()
return the day of the month and day of the year
respectively. day()
and day<-()
are aliases for mday()
and mday<-()
.
wday()
returns the day of the week as a decimal number or an ordered factor
if label is TRUE
.
x <- as.Date("2009-09-02")
wday(x) # 4
wday(x, label = TRUE) # Wed
wday(x, week_start = 1) # 3
wday(x, week_start = 7) # 4
wday(x, label = TRUE, week_start = 7) # Wed (Sun is the first level)
wday(x, label = TRUE, week_start = 1) # Wed (Mon is the first level)
wday(ymd(080101))
wday(ymd(080101), label = TRUE, abbr = FALSE)
wday(ymd(080101), label = TRUE, abbr = TRUE)
wday(ymd(080101) + days(-2:4), label = TRUE, abbr = TRUE)
x <- as.Date("2009-09-02")
yday(x) # 245
mday(x) # 2
yday(x) <- 1 # "2009-01-01"
yday(x) <- 366 # "2010-01-01"
mday(x) > 3
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.