Visible to Intel only — GUID: GUID-3DF9E14A-90AF-4B55-9679-B109A76F16FB
Visible to Intel only — GUID: GUID-3DF9E14A-90AF-4B55-9679-B109A76F16FB
PARITY
Transformational Intrinsic Function (Generic): Reduces an array by using an exclusive OR (.NEQV.) operation.
result = PARITY (mask)
result = PARITY (mask, dim)
mask |
(Input) Must be an array of type logical. |
dim |
(Input) Must be a scalar integer with a value in the range 1 <= dim <= n, where n is the rank of mask. |
Results
The result has the same type and kind parameters as mask. It is scalar if dim is not specified; otherwise, the result has rank n - 1 and shape [d1, d2, ..., ddim-1, ddim+1 , ..., dn] where [d1, d2,..., dn] is the shape of mask.
The result of PARITY(mask) has the value .TRUE. if an odd number of the elements of mask are true; otherwise, .FALSE..
If mask has rank one, PARITY(mask, dim) is equal to PARITY(mask). Otherwise, the value of element (s1, s2, ..., sdim-1, sdim+1 , ..., sn) of PARITY(mask, dim) is equal to PARITY (mask (s1, s2, ..., sdim-1 , :, sdim+1 , ..., sn)).
Example
If A is the array
[ T F T ] [ T T F ]
and T has the value .TRUE. and F has the value .FALSE., then
PARITY (A, DIM=1) has the value [F, T, T] and PARITY (A, DIM=2) has the value [F, F].