is.leapyear | R Documentation |
Check for leap years
is.leapyear(year)
year |
numeric |
logical. TRUE if year is a leap year
Simon Frey
http://en.wikipedia.org/wiki/Leap_year
is.leapyear(2000)
is.leapyear(2001)
is.leapyear(c(1970:2100))
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