an object inheriting from class "dates", or
coercible to such via as.chron.
abbreviate
should abbreviated names be returned? Default is TRUE.
Details
Note that months, quarters and weekdays are
generics defined in package base which also provides methods for
objects of class "Date" as generated, e.g., by
Sys.Date. These methods return character rather
than factor variables as the default methods in chron do.
To take advantage of the latter, Date objects can be converted to
dates objects using as.chron, see the examples.
Value
an ordered factor corresponding to days, weekdays, months, quarters,
or years of x for the respective function.
See Also
is.weekend,
is.holiday
Examples
dts <- dates("07/01/78") + trunc(50 * rnorm(30))
plot(weekdays(dts))
plot(months(dts))
## The day in the current timezone as a Date object.
Dt <- Sys.Date()
## Using the months method for Date objects.
months(Dt)
## Using the months default method.
months(as.chron(Dt))