Generate lists from array

[schris]

Hi, new user here who's not bad at Excel, but doesn't have a lot of experience with arrays. My problem:

Given a list of groups (in this example types of fruit) and membership in each group (names), I'd like to generate a rows where each person's group memberships are listed.

[TABLE="width: 384"]
<tbody>[TR]
[TD="class: xl66, width: 64"][/TD]
[TD="width: 64"]A[/TD]
[TD="width: 64"]B[/TD]
[TD="width: 64"]C[/TD]
[TD="width: 64"]D[/TD]
[TD="width: 64"]E[/TD]
[/TR]
[TR]
[TD="class: xl66"]1[/TD]
[TD="class: xl67"]
[/TD]
[TD="class: xl68"]Name1[/TD]
[TD="class: xl68"]Name2[/TD]
[TD="class: xl68"]Name3[/TD]
[TD="class: xl68"]Name4[/TD]
[/TR]
[TR]
[TD="class: xl66"]2[/TD]
[TD="class: xl68"]Apple
[/TD]
[TD="class: xl67"]Paul[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]3[/TD]
[TD="class: xl68"]Banana[/TD]
[TD="class: xl67"]Greg[/TD]
[TD="class: xl67"]George[/TD]
[TD="class: xl67"]Jeff[/TD]
[TD="class: xl67"]Ed[/TD]
[/TR]
[TR]
[TD="class: xl66"]4[/TD]
[TD="class: xl68"]Orange[/TD]
[TD="class: xl67"]Ron[/TD]
[TD="class: xl67"]Paul[/TD]
[TD="class: xl67"]Greg[/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]5[/TD]
[TD="class: xl68"]Grape[/TD]
[TD="class: xl67"]Chris[/TD]
[TD="class: xl67"]Ed[/TD]
[TD="class: xl67"]Paul[/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]6[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="class: xl66"]7[/TD]
[TD]Output:[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="class: xl66"]8[/TD]
[TD="class: xl69"]Chris
[/TD]
[TD="class: xl67"]Grape[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]9[/TD]
[TD="class: xl69"]Ed[/TD]
[TD="class: xl67"]Banana[/TD]
[TD="class: xl67"]Grape[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]10[/TD]
[TD="class: xl69"]George[/TD]
[TD="class: xl67"]Banana[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]11[/TD]
[TD="class: xl69"]Greg[/TD]
[TD="class: xl67"]Banana[/TD]
[TD="class: xl67"]Orange[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]12[/TD]
[TD="class: xl69"]Paul[/TD]
[TD="class: xl67"]Apple[/TD]
[TD="class: xl67"]Orange[/TD]
[TD="class: xl67"]Grape[/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]13[/TD]
[TD="class: xl69"]Ron[/TD]
[TD="class: xl67"]Orange[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
[TR]
[TD="class: xl66"]14[/TD]
[TD="class: xl69"]Jeff[/TD]
[TD="class: xl67"]Banana[/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[TD="class: xl67"][/TD]
[/TR]
</tbody>[/TABLE]


I've tried variations of array, INDEX, MATCH and SMALL, but have had no luck. I'm starting to wonder if this is even possible with Excel.

Frustrated fruit vendor,
Steve

 

[Eric W]

Welcome to the Board.

Try:

	A	B	C	D	E

<colgroup><col style="width: 25pxpx"><col><col><col><col><col></colgroup><thead>
</thead><tbody>
[TD="align: center"]1[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Name1[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Name2[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Name3[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Name4[/TD]

[TD="align: center"]2[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Apple[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Paul[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]

[TD="align: center"]3[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Banana[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Greg[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]George[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Jeff[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Ed[/TD]

[TD="align: center"]4[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Orange[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Ron[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Paul[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Greg[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]

[TD="align: center"]5[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Grape[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Chris[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Ed[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Paul[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]

[TD="align: center"]6[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]

[TD="align: center"]7[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Output:[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] , align: right"][/TD]

[TD="align: center"]8[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Chris[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Grape[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]9[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Ed[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Banana[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Grape[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]10[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]George[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Banana[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]11[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Greg[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Banana[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Orange[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]12[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Paul[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Apple[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Orange[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Grape[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]13[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Ron[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Orange[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

[TD="align: center"]14[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Jeff[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "]Banana[/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]
[TD="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=FAFAFA]#FAFAFA[/URL] "][/TD]

</tbody>

Sheet8​

[TABLE="width: 85%"]
<tbody>[TR]
[TD]Array Formulas[TABLE="width: 100%"]
<thead>[TR="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]
[TH="width: 10px"]Cell[/TH]
[TH="align: left"]Formula[/TH]
[/TR]
</thead><tbody>[TR]
[TH="width: 10px, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]B8[/TH]
[TD="align: left"]{=IFERROR(INDEX($A$2:$A$5,SMALL(IF($B$2:$E$5=$A8,ROW($A$2:$A$5)-ROW($A$2)+1),COLUMNS($B8:B8))),"")}[/TD]
[/TR]
</tbody>[/TABLE]
Entered with Ctrl+Shift+Enter. If entered correctly, Excel will surround with curly braces {}.
Note: Do not try and enter the {} manually yourself[/TD]
[/TR]
</tbody>[/TABLE]

 

[schris]

Holy cow Eric, it works! Thank you so much, I can't believe how fast you whipped that up, I've been struggling with it for hours.

Very much appreciated!
Steve

 

[Marcelo Branco]

If you do need/want to extract the names in alphabetical order maybe something like this


[TABLE="class: grid"]
<tbody>[TR]
[TD="bgcolor: #DCE6F1"][/TD]
[TD="bgcolor: #DCE6F1"]

A​

[/TD]
[TD="bgcolor: #DCE6F1"]

B​

[/TD]
[TD="bgcolor: #DCE6F1"]

C​

[/TD]
[TD="bgcolor: #DCE6F1"]

D​

[/TD]
[TD="bgcolor: #DCE6F1"]

E​

[/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

1​

[/TD]
[TD][/TD]
[TD]

Name1​

[/TD]
[TD]

Name2​

[/TD]
[TD]

Name3​

[/TD]
[TD]

Name4​

[/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

2​

[/TD]
[TD]

Apple​

[/TD]
[TD]

Paul​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

3​

[/TD]
[TD]

Banana​

[/TD]
[TD]

Greg​

[/TD]
[TD]

George​

[/TD]
[TD]

Jeff​

[/TD]
[TD]

Ed​

[/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

4​

[/TD]
[TD]

Orange​

[/TD]
[TD]

Ron​

[/TD]
[TD]

Paul​

[/TD]
[TD]

Greg​

[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

5​

[/TD]
[TD]

Grape​

[/TD]
[TD]

Chris​

[/TD]
[TD]

Ed​

[/TD]
[TD]

Paul​

[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

6​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

7​

[/TD]
[TD]

Output:​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

8​

[/TD]
[TD="bgcolor: #D9D9D9"]

Chris​

[/TD]
[TD]

Grape​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

9​

[/TD]
[TD="bgcolor: #D9D9D9"]

Ed​

[/TD]
[TD]

Banana​

[/TD]
[TD]

Grape​

[/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

10​

[/TD]
[TD="bgcolor: #D9D9D9"]

George​

[/TD]
[TD]

Banana​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

11​

[/TD]
[TD="bgcolor: #D9D9D9"]

Greg​

[/TD]
[TD]

Banana​

[/TD]
[TD]

Orange​

[/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

12​

[/TD]
[TD="bgcolor: #D9D9D9"]

Jeff​

[/TD]
[TD]

Banana​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

13​

[/TD]
[TD="bgcolor: #D9D9D9"]

Paul​

[/TD]
[TD]

Apple​

[/TD]
[TD]

Orange​

[/TD]
[TD]

Grape​

[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

14​

[/TD]
[TD="bgcolor: #D9D9D9"]

Ron​

[/TD]
[TD]

Orange​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="bgcolor: #DCE6F1"]

15​

[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]


Array formula in A8 copied down (gray area)
=IFERROR(INDIRECT(TEXT(SMALL(IFERROR(IF(IF(B$2:E$5<>"",COUNTIF(B$2:E$5,"<"&B$2:E$5)+1,"")-SUM(COUNTIF(A$7:A7,B$2:E$5))=1,ROW(B$2:E$5)*10^5+COLUMN(B$2:E$5)),""),1),"L0C00000"),0),"")
Ctrl+Shift+Enter

M.

 

[Eric W]

Well, it really helps if you've seen something like it before!

Glad we could help!