LIST.COMBINE

LIST.COMBINE(list_1,list_2)
list_1
a 1-dimensional array
list_2
a 1-dimesnional aray

LIST.COMBINE takes two lists and returns a single list.

tboulden

Board Regular
Joined
Jan 14, 2021
Messages
73
Office Version
  1. 365
Platform
  1. Windows
LIST.COMBINE takes two lists and returns a single list.

This is a beginner's version of List.Combine from Power Query; although lists are comma-delimited in Power Query and display vertically, commas delimit columns in arrays and display horizontally. I've opted to have List.Combine display vertically here; if you prefer horizontally, change k,SEQUENCE(i+j) => k,SEQUENCE(1,i+j).

This is a "dumb" version as it is agnostic about the orientation of the lists its combining. A smarter version that handles 2-D and orientations is @RicoS COMBINEARRAYS.

Excel Formula:
=LAMBDA(
    list_1,
    list_2,
    LET(
        i,COUNTA(list_1),
        j,COUNTA(list_2),
        k,SEQUENCE(i+j),
        IF(
            k<=i,INDEX(list_1,k),
            INDEX(list_2,k-i)
        )
    )
)

LAMBDA_Testing_ListCombine.xlsm
ABCDEF
1Anonymous:1123
22
33A
4AB
5BC
6C
7
8Named:1
92
103
11A
12B
13C
Scratch
Cell Formulas
RangeFormula
B1:B6B1=LAMBDA(list₁,list₂,LET(i,COUNTA(list₁),j,COUNTA(list₂),k,SEQUENCE(i+j),IF(k<=i,INDEX(list₁,k),INDEX(list₂,k-i))))(D1#,D3#)
D1:F1D1={1,2,3}
D3:D5D3=CHAR(SEQUENCE(3,1,65))
B8:B13B8=List.Combine(D1#,D3#)
Dynamic array formulas.
 
Upvote 0

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