DescTools (version 0.99.34)

IsDate: Check If an Object Is of Type Date

Description

Check if the given x is of any known Date type.

Usage

IsDate(x, what = c("either", "both", "timeVaries"))

Arguments

x

a vector or values to be checked.

what

can be any value out of "either" (default), "both" or "timeVaries".

Value

logical vector of the same dimension as x.

Details

This checks for many known Date and Time classes: "POSIXt", "POSIXct", "dates", "times", "chron", "Date".

See Also

Year, Month, etc.

Examples

# NOT RUN {
IsDate(as.Date("2013-04-10"))

IsDate(31002)
# }