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is.odd tests whether a number is odd. is.even returns the opposite
is.odd
is.even
is.odd(x)is.even(x)
is.even(x)
a vector of type logical
numeric object to be tested
x <- seq(1, 9, 2) is.odd(x) y <- seq(2, 8, 2) is.even(y) # NA values x[1] <- NA is.odd(x)
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