isLeapYear {tis}

Check Leap Year

Description

Checks whether or not the elements of its input are leap years.

Usage

isLeapYear(y)

Arguments

y

numeric vector of years

Details

y is a leap year if it is evenly divisible by 4 and either it is not evenly divisible by 100 or it is evenly divisible by 400, i.e., y%%4 == 0 & (y%%100 != 0 | y%%400 == 0).

Value

logical vector of same length as y indicating whether or not the given years are leap years.

Examples

isLeapYear(c(1899:2004))