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Comment: Published by Scroll Versions from space DEV and version r0810

D toc

Excerpt

Generates a nested array containing the cross-product of all elements in two or more arrays.

  • Input arrays can be referenced as column names or array literals.
  • If Array1 has M elements and Array2 has N elements, the generated array has M X N elements.
Info

NOTE: Be careful applying this function across columns of large arrays. A limit is automatically applied on large arrays to prevent overloading the browser. Avoid apply the ARRAYCROSS transform to very wide columns.

D s lang vs sql

D s
snippetBasic

Array literal reference example:

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextderive type:single value:arraycross[["A","B"],["1","2","3"]] )

arraycross[["A","B"],["1","2","3"]] )


Output:
Returns a single array:

Code Block
[["A","1"],["A","2"],["A","3"],["B","1"],["B","2"],["B","3"]] 

Column reference example:

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextderive type:single value:arraycross(array1,array2,array3) as:'cross_Array'

arraycross(array1,array2,array3)

Output: Returns an array containing a single array listing all combinations of elements between array1, array2 , and array3.

D s
snippetSyntax

D lang syntax
RawWrangletrue
Typesyntax
showNotetrue
WrangleTextderive type:single value:arraycross(array_ref1,array_ref2)

arraycross(array_ref1,array_ref2)


ArgumentRequired?Data TypeDescription
array_ref1Ystring or arrayName of first column or first array literal to apply to the function
array_ref2Ystring or arrayName of second column or second array literal to apply to the function

D s lang notes

array_ref1, array_ref2

Array literal or name of the array column whose intersection you want to derive.

D s
snippetusage

Required?Data TypeExample Value
YesArray literal or column referencemyArray1, myArray2

D s
snippetExamples

Example - Simple cross example

Include Page
EXAMPLE - Nested Functions
EXAMPLE - Nested Functions

D s also
labelnested