Identify Even or Odd Numbers
Simple functions to test for or return the even or odd numbers.
is.even(x) is.odd(x) even(x) odd(x)
x |
any numeric, but maybe makes the most sense with integers. |
Return a logical vector/matrix of the same dimension as the argument x telling whether each component is odd (is.odd) or even (is.even), or return just the even (even) or odd (odd) numbers from the vector/matrix. Uses %%.
Returns a logical vector/matrix/array of the same dimension as x in the case of is.even and is.odd, and returns a vector of length less than or equal to x in the case of even and odd; or if no even/odd values, returns integer(0).
Eric Gilleland
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is.even( 1:7 ) is.odd( 1:7 ) even( 1:7 ) odd( 1:7 )
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