Get/set days component of a date-time.

`day(x)`mday(x)

wday(x, label = FALSE, abbr = TRUE)

qday(x)

yday(x)

day(x) <- value

mday(x) <- value

qday(x) <- value

wday(x) <- 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.

value

a numeric object

wday returns the day of the week as a decimal number (01-07, Sunday is 1) or an ordered factor (Sunday is first).

`day`

and `day<-`

are aliases for `mday`

and `mday<-`

respectively.

# NOT RUN { x <- as.Date("2009-09-02") wday(x) #4 wday(ymd(080101)) wday(ymd(080101), label = TRUE, abbr = FALSE) # Levels: Sunday < Monday < Tuesday < Wednesday < Thursday < Friday < Saturday wday(ymd(080101), label = TRUE, abbr = TRUE) # Levels: Sunday < Monday < Tuesday < Wednesday < Thursday < Friday < Saturday wday(ymd(080101) + days(-2:4), label = TRUE, abbr = TRUE) # Levels: Sunday < Monday < Tuesday < Wednesday < Thursday < Friday < Saturday 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 # }