tuple_differencetuple_differenceTupleDifferencetuple_differenceTupleDifferenceTupleDifference (Operator)

Name

tuple_differencetuple_differenceTupleDifferencetuple_differenceTupleDifferenceTupleDifference — Compute the difference set of two input tuples.

Signature

Description

tuple_differencetuple_differenceTupleDifferencetuple_differenceTupleDifferenceTupleDifference returns the difference set from Set1Set1Set1Set1Set1set1 and Set2Set2Set2Set2Set2set2 in DifferenceDifferenceDifferenceDifferenceDifferencedifference. For example, if Set1Set1Set1Set1Set1set1 contains the values [0,1,3,3,5] and Set2Set2Set2Set2Set2set2 contains the values [2,3,5,10], the output DifferenceDifferenceDifferenceDifferenceDifferencedifference is [0,1]. The operator also allows mixed types of elements in the input tuples. However, the elements with different types will be considered as different elements, i.e. 1.0 and 1 are different. Also, this means, if Set1Set1Set1Set1Set1set1 and Set2Set2Set2Set2Set2set2 have different types of elements, their difference set could be Set1Set1Set1Set1Set1set1 itself. For example, if Set1Set1Set1Set1Set1set1 contains the values [2,5,3] and Set2Set2Set2Set2Set2set2 contains the values [2.0,5.0,3.0], the output DifferenceDifferenceDifferenceDifferenceDifferencedifference is [2,5,3].

Exception: Empty input tuples

If both input tuples are empty, the operator returns an empty tuple. If Set1Set1Set1Set1Set1set1 is empty and Set2Set2Set2Set2Set2set2 is not, the operator returns an empty tuple as well. If Set2Set2Set2Set2Set2set2 is empty and Set1Set1Set1Set1Set1set1 is not, the output corresponds to Set1Set1Set1Set1Set1set1.

HDevelop In-line Operation

HDevelop provides an in-line operation for tuple_differencetuple_differenceTupleDifferencetuple_differenceTupleDifferenceTupleDifference, which can be used in an expression in the following syntax:

Difference := difference(Set1, Set2)

Parallelization

• Multithreading type: independent (runs in parallel even with exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Automatically parallelized on internal data level.

Parameters

Result

If the parameters are valid, the operator tuple_differencetuple_differenceTupleDifferencetuple_differenceTupleDifferenceTupleDifference returns the value 2 (H_MSG_TRUE).

Alternatives

tuple_symmdifftuple_symmdiffTupleSymmdifftuple_symmdiffTupleSymmdiffTupleSymmdiff

See also

tuple_intersectiontuple_intersectionTupleIntersectiontuple_intersectionTupleIntersectionTupleIntersection, tuple_symmdifftuple_symmdiffTupleSymmdifftuple_symmdiffTupleSymmdiffTupleSymmdiff, tuple_uniontuple_unionTupleUniontuple_unionTupleUnionTupleUnion

Module

Foundation