Stacking combine of Dynamic Arrays

jaeiow

Board Regular
Joined
Jun 12, 2022
Messages
139
Office Version
  1. 365
Platform
  1. Windows
(I have attached a sample table that can generate the error)

I have a formula for creating a stacked combined column based off dynamic arrays. This formula that was posted here by the thread author, tm23 seems to work, but only returns results if the source stays below a certain row limit. In the sample, you can fix the #CALC by deleting a majority of the rows. I'm thinking about a different way of writing a formula for this might work, since the solution was posted in 2020 there have been updates to Excel working with dynamic arrays.

The formulas are:
A2:
Excel Formula:
=NUMBERVALUE(LEFT(tblFlatten[IDx],LEN(tblFlatten[IDx])-1))
B2:
Excel Formula:
=IFNA(RIGHT(tblFlatten[IDx],1),"")&"~"&NUMBERVALUE(LEFT(tblFlatten[IDx],LEN(tblFlatten[IDx])-1))&"~"
D2:
Excel Formula:
=UNIQUE(NUMBERVALUE(LEFT(tblFlatten[IDx],LEN(tblFlatten[IDx])-1)))
F2:
Excel Formula:
=LET(
lookup_values,D2#,
lookup_array,A2#,
return_array_to_concat,B2#,
col_range_to_concat,B:B,
separator_row,"\",
separator_col,"|",
if_not_found,"No result",

array_before_split,IFERROR(INDEX(col_range_to_concat,IF((lookup_values=TRANSPOSE(lookup_array)),TRANSPOSE(ROW(return_array_to_concat)),"")),separator_col),
CountCol_array_before_split,COLUMNS(array_before_split),
array_to_split,TEXTJOIN(IF(ROUNDDOWN(SEQUENCE(CountCol_array_before_split,1,1,1/(IF(CountCol_array_before_split=1,1,CountCol_array_before_split-1))),0)>1,separator_row,separator_col),0,array_before_split),
pre_final_result,SUBSTITUTE(TRANSPOSE(INDEX((FILTERXML("<b><a>"&SUBSTITUTE(TEXTJOIN(separator_row,,array_to_split),separator_row,"</a><a>")&"</a></b>","//a")),SEQUENCE(ROWS(array_to_split),LEN(INDEX(array_to_split,1,1))-LEN(SUBSTITUTE(INDEX(array_to_split,1,1),separator_row,))+1))),separator_col&separator_col,""),
IF(pre_final_result=separator_col,if_not_found,pre_final_result))

Here is tblFlatten. (reduce the number of rows to fix the error)
IDx
1a
1b
1c
1d
1e
1f
1g
1h
2a
2b
2c
2d
2e
2f
2g
2h
3a
3b
3c
3d
3e
3f
3g
3h
4a
4b
4c
4d
4e
4f
4g
4h
5a
5b
5c
5d
5e
5f
5g
5h
6a
6b
6c
6d
6e
6f
6g
6h
7a
7b
7c
7d
7e
7f
7g
7h
8a
8b
8c
8d
8e
8f
8g
8h
9a
9b
9c
9d
9e
9f
9g
9h
10a
10b
10c
10d
10e
10f
10g
10h
11a
11b
11c
11d
11e
11f
11g
11h
12a
12b
12c
12d
12e
12f
12g
12h
13a
13b
13c
13d
13e
13f
13g
13h
14a
14b
14c
14d
14e
14f
14g
14h
15a
15b
15c
15d
15e
15f
15g
15h
16a
16b
16c
16d
16e
16f
16g
16h
17a
17b
17c
17d
17e
17f
17g
17h
18a
18b
18c
18d
18e
18f
18g
18h
19a
19b
19c
19d
19e
19f
19g
19h
20a
20b
20c
20d
20e
20f
20g
20h
21a
21b
21c
21d
21e
21f
21g
21h
22a
22b
22c
22d
22e
22f
22g
22h
23a
23b
23c
23d
23e
23f
23g
23h
24a
24b
24c
24d
24e
24f
24g
24h
25a
25b
25c
25d
25e
25f
25g
25h
26a
26b
26c
26d
26e
26f
26g
26h
27a
27b
27c
27d
27e
27f
27g
27h
28a
28b
28c
28d
28e
28f
28g
28h
29a
29b
29c
29d
29e
29f
29g
29h
30a
30b
30c
30d
30e
30f
30g
30h
31a
31b
31c
31d
31e
31f
31g
31h
32a
32b
32c
32d
32e
32f
32g
32h
33a
33b
33c
33d
33e
33f
33g
33h
34a
34b
34c
34d
34e
34f
34g
34h
35a
35b
35c
35d
35e
35f
35g
35h
36a
36b
36c
36d
36e
36f
36g
36h
37a
37b
37c
37d
37e
37f
37g
37h
38a
38b
38c
38d
38e
38f
38g
38h
39a
39b
39c
39d
39e
39f
39g
39h
40a
40b
40c
40d
40e
40f
40g
40h
41a
41b
41c
41d
41e
41f
41g
41h
42a
42b
42c
42d
42e
42f
42g
42h
43a
43b
43c
43d
43e
43f
43g
43h
44a
44b
44c
44d
44e
44f
44g
44h
45a
45b
45c
45d
45e
45f
45g
45h
46a
46b
46c
46d
46e
46f
46g
46h
47a
47b
47c
47d
47e
47f
47g
47h
48a
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48e
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48g
48h
49a
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49f
49g
49h
50a
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50e
50f
50g
50h
51a
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51d
51e
51f
51g
51h
52a
52b
52c
52d
52e
52f
52g
52h
53a
53b
53c
53d
53e
53f
53g
53h
54a
54b
54c
54d
54e
54f
54g
54h
55a
55b
55c
55d
55e
55f
55g
55h
56a
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56e
56f
56g
56h
57a
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57d
57e
57f
57g
57h
58a
58b
58c
58d
58e
58f
58g
58h
59a
59b
59c
59d
59e
59f
59g
59h
60a
60b
60c
60d
60e
60f
60g
60h
61a
61b
61c
61d
61e
61f
61g
61h
62a
62b
62c
62d
62e
62f
62g
62h
63a
63b
63c
63d
63e
63f
63g
63h
64a
64b
64c
64d
64e
64f
64g
64h
65a
65b
65c
65d
65e
65f
65g
65h
66a
66b
66c
66d
66e
66f
66g
66h
67a
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67c
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67f
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67h
68a
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68g
68h
69a
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69g
69h
70a
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70g
70h
71a
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71e
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71g
71h
72a
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72g
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73a
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73e
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73g
73h
74a
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74g
74h
75a
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75c
75d
75e
75f
75g
75h
76a
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76d
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76g
76h
77a
77b
77c
77d
77e
77f
77g
77h
78a
78b
78c
78d
78e
78f
 

Excel Facts

What did Pito Salas invent?
Pito Salas, working for Lotus, popularized what would become to be pivot tables. It was released as Lotus Improv in 1989.
Rather than supplying a formula that does not work, can you explain what you are trying to do & what your expected out come is?
 
Upvote 0
This will probably do what you want, but if you post some realistic data, we may be able to get rid of those helper columns.
Excel Formula:
=BYROW(D2#,LAMBDA(br,TEXTJOIN("|",,FILTER(B2#,A2#=br+0))))
 
Upvote 0
Solution
My scenario is unpivoted data similar to the one above, except for my "comment" column uses a-f's and 1, 2, 3... as the inputs of index-match. So thank you. This is the solution.
 
Upvote 0
You're welcome & thanks for the feedback.
 
Upvote 0

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