Forum Discussion
Combine two arrays, alternating their elements
I'm thinking how one would go about doing this in PQ. Input : arr1[] = {1, 2, 3, 4, 5, 6}
arr2[] = {11, 22, 33, 44}
Output: {1, 11, 2, 22, 3, 33, 4, 44, 5, 6}
Input : arr1[] = {1, 2, 3,...
Assuming the arrays are list objects in the Query editor, you can use this function:
List.Select(List.Combine(List.Zip({Array1, Array2})), each _ <> null)
Output: {1, 11, 2, 22, 3, 33, 4, 44, 5, 6}ImkeF How to get each combination into separate row ?
| ID | value |
| 1 | 1,11 |
| 2 | 2,22 |
| 3 | 3,33 |
you could use the tool Merge Columns, after having selected the involved columns:
then choice the separator you like:
PS
I intruded into the discussion to show a different approach, but only for fun.
I just wanted to experiment with recursion and I wrote this Anonymous.
let
interleave=(a1,a2,pos) =>
let
la1=List.Count(a1),
la2=List.Count(a2),
gl=if la1 >= la2 then a1 else a2,
ll=if la1 < la2 then a1 else a2,
ins_a1=List.InsertRange(gl,2*pos+1,{ll{pos}}),
p=pos+1
in
if p < List.Min({la1,la2}) then @interleave(ins_a1,ll,p) else ins_a1
in interleave