set_intersect

arrayfire.set_intersect(x: Array, y: Array, /, *, is_unique: bool = False) → Array

Calculates the intersection of two ArrayFire arrays, returning elements common to both arrays.

Parameters

xArray

The first input 1D ArrayFire array.

yArray

The second input 1D ArrayFire array.

is_uniquebool, optional, keyword-only, default: False

Specifies whether both input arrays contain unique elements. If set to True, the function assumes that the arrays do not have repeated elements, which can optimize the intersection operation.

Returns

Array

An ArrayFire array containing the intersection of x and y. The returned array includes elements that are common to both input arrays. If is_unique is True, the function assumes no duplicates within each input array, potentially enhancing performance.

Examples

>>> import arrayfire as af
>>> a = af.Array([1, 2, 3, 4, 5])
>>> b = af.Array([4, 5, 6, 7, 8])
>>> af.set_intersect(a, b)
[2 1 1 1]
    4.0000
    5.0000

Note

• Both x and y must be 1D arrays.

• The is_unique parameter can be used to optimize the intersection calculation when both input arrays are known to contain unique elements.