apoc.coll.combinations
Function
apoc.coll.combinations(coll [Any], minSelect Integer, maxSelect Integer)
- returns a collection of all combinations of list elements between the selection size minSelect and maxSelect (default: minSelect).
Signature
apoc.coll.combinations(coll :: LIST? OF ANY?, minSelect :: INTEGER?, maxSelect = -1 :: INTEGER?) :: (LIST? OF ANY?)
Input parameters
Name | Type | Default |
---|---|---|
coll |
LIST? OF ANY? |
null |
minSelect |
INTEGER? |
null |
maxSelect |
INTEGER? |
-1 |
Usage examples
The following returns a collection of all combinations of list elements of selection size between 3
and 4
elements:
RETURN apoc.coll.combinations([1,3,5,7,9], 3, 4) AS output;
Output |
---|
[[1, 3, 5], [1, 3, 7], [1, 5, 7], [3, 5, 7], [1, 3, 9], [1, 5, 9], [3, 5, 9], [1, 7, 9], [3, 7, 9], [5, 7, 9], [1, 3, 5, 7], [1, 3, 5, 9], [1, 3, 7, 9], [1, 5, 7, 9], [3, 5, 7, 9]] |
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