Various POSIX utilities
POSIXct() mirrors primitive contructors in base R (double(),
character() etc.)
is.POSIXt(x) is.POSIXlt(x) is.POSIXct(x) POSIXct(length = 0L, tz = "UTC") NA_POSIXct_
x |
an R object |
length |
A non-negative number specifying the desired length. Supplying an argument of length other than one is an error. |
tz |
a timezone (defaults to "utc") |
An object of class POSIXct (inherits from POSIXt) of length 1.
TRUE if x is a POSIXct or POSIXlt object, FALSE otherwise.
is.POSIXt(as.Date("2009-08-03"))
is.POSIXt(as.POSIXct("2009-08-03"))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.