setintersect

The C++ interface for setintersect. More...

array	setintersect (const array &A, const array &B)
	Intersection of two vectors. More...
void	setintersect (array &U, array &IA, array &IB, const array &A, const array &B)
	Intersection of two vectors and their indices. More...

Detailed Description

The C++ interface for setintersect.

Returns the intersect of two sets.

Function Documentation

array af::setintersect	(	const array &	A,
		const array &	B
	)

Intersection of two vectors.

array a = array(seq(5));
array b = array(seq(5))-2*constant(1,5);
print(a);  //  0  1  2  3  4
print(b);  // -2 -1  0  1  2
array c = setunion(a,b);
print(c);  //  0  1  2

Parameters

[in]	A
[in]	B

Returns

values found in both vectors

void af::setintersect	(	array &	U,
		array &	IA,
		array &	IB,
		const array &	A,
		const array &	B
	)

Intersection of two vectors and their indices.

array a = array(seq(5));
array b = array(seq(5))-2*constant(1,5);
print(a);  //  0  1  2  3  4
print(b);  // -2 -1  0  1  2
array i, idxa, idxb;
setintersect(i, idxa, idxb, a, b);
print(i);  // 0 1 2
print(idxa);  // 0 1 2
print(idxb);  // 2 3 4

Parameters

[out]	U	values found in both A and B
[out]	IA	The indices of values in A present in B
[out]	IB	The indices of values in B present in A
[in]	A
[in]	B