Description of the class
"Date" representing calendar dates.
## S3 method for class 'Date': summary((object, digits = 12, ...))
- An object summarized.
- Number of significant digits for the computations.
- Further arguments to be passed from or to other methods.
Dates are represented as the number of days since 1970-01-01, with negative values for earlier dates. They are always printed following the rules of the current Gregorian calendar, even though that calendar was not in use long ago (it was adopted in 1752 in Great Britain and its colonies).
It is intended that the date should be an integer, but this is not enforced in the internal representation. Fractional days will be ignored when printing. It is possible to produce fractional days via the
mean method or by adding or subtracting (see
The print methods respect
Sys.Date for the current date.
Ops.Date for operators on
format.Date for conversion to and from character strings.
hist.Date for plotting.
weekdays for convenience extraction functions.
round.Date for utility operations.
DateTimeClasses for date-time classes.
Documentation reproduced from R 3.0.2. License: GPL-2.