DateUpdate: Changes the components of a date object
Description
update.Date and update.POSIXt return a date with the specified
elements updated. Elements not specified will be left unaltered. update.Date
and update.POSIXt do not add the specified values to the existing date, they
substitute them for the appropriate parts of the existing date.
Usage
# S3 method for POSIXt
update(object, ..., simple = FALSE)
Arguments
object
a date-time object
...
named arguments: years, months, ydays, wdays, mdays, days, hours,
minutes, seconds, tzs (time zone compnent)
simple
logical, passed to fit_to_timeline. If TRUE a simple fit
to time line is performed and no NA are produced for invalid dates. Invalid
dates are converted to meaningful dates by extrapolating the timezones.
Value
a date object with the requested elements updated. The object will
retain its original class unless an element is updated which the original
class does not support. In this case, the date returned will be a POSIXlt
date object.