apoc.coll.combinations
Function

Details
Syntax	`apoc.coll.combinations(coll, minSelect [, maxSelect ])`
Description	Returns a collection of all combinations of `LIST<ANY>` elements between the selection size `minSelect` and `maxSelect` (default: `minSelect`).
Arguments	Name	Type	Description
	`coll`	`LIST<ANY>`	The list to return the combinations from.
	`minSelect`	`INTEGER`	The minimum selection size of the combination.
	`maxSelect`	`INTEGER`	The maximum selection size of the combination. The default is: `-1`.
Returns	`LIST<ANY>`

Usage examples

The following returns a collection of all combinations of LIST<ANY> elements of selection size between 3 and 4 elements:

RETURN apoc.coll.combinations([1,3,5,7,9], 3, 4) AS output;

Results
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]]