Extract part of a list given start value in excel - excel

Question

I want to extract part of a list given the starting value found by means of index/match combinations or the vlookup function. However, hence only the initial value is returned but subsequent values in the list are also of interest and should follow this initial found value. Is there a way of combining functions that return sub-arrays? Thank you in advance for the help. Best Regards, Oliver

Answer 1

Say we have data like:
and we wanted the UK people, VLOOKUP() would only return William. If we want more than just William, then in C1 enter:
UK
and in C2 enter the array formula:
=IFERROR(INDEX($B$2:$B$22, SMALL(IF(C$1=$A$2:$A$22, ROW($A$2:$A$22)-MIN(ROW($A$2:$A$22))+1, ""), ROW(A1))),"")
and copy down:
Array formulas must be entered with Ctrl + Shift + Enter rather than just the Enter key.

Answer 2

1. Incrementing Row/Column Count Options
1a. Start Value, Sub-List Length
Let us assume this sample data and result format:
A B C D
---------------------------------------------
1|John Start Value Amy Amy
2|Jane Sub-List Length 3 Amber
3|Amy Chris
4|Amber
5|Chris
6|Dan
7|Bob
You can achieve this by using the following formula and autofilling down:
=IFERROR(INDEX($A:$A,(MATCH($C$1,$A:$A,0))+IF(ROWS($1:1)<=$C$2,ROWS($1:1)-1,#VALUE!)),"")
1b. Start Value, End Value
Sample data and result format:
A B C D
---------------------------------------------
1|John Start Value Amy Amy
2|Jane End Value Dan Amber
3|Amy Chris
4|Amber Dan
5|Chris
6|Dan
7|Bob
Use this formula and autofill down:
=IFERROR(INDEX($A:$A,(MATCH($C$1,$A:$A,0))+IF(ROWS($1:1)<=(MATCH($C$2,$A:$A,0)-MATCH($C$1,$A:$A,0)+1),ROWS($1:1)-1,#VALUE!)),"")
1c. Start Value, End of list
Sample data and result format:
A B C D
---------------------------------------------
1|John Start Value Chris Chris
2|Jane Dan
3|Amy Bob
4|Amber
5|Chris
6|Dan
7|Bob
Use this formula and autofill down:
=IFERROR(INDEX($A:$A,(MATCH($C$1,$A:$A,0))+IF(ROWS($1:1)<=(COUNTA($A:$A)-MATCH($C$1,$A:$A,0)+1),ROWS($1:1)-1,#VALUE!)),"")
Note: for options 1a - 1c if you wish to have a horizontal list result replace ROWS($1:1) with COLUMNS($A:A) and autofill to the right
2. Using a Predefined Array:
Note: These options requires you to select the range you want the values to be in, and then use ctrl + shift + enter to enter the data.
2a. Vertical Sublist, Fixed Length:
Sample data and result format, with fixed length of 4
A B C D
---------------------------------------------
1|John Start Value Amy Amy
2|Jane Amber
3|Amy Chris
4|Amber Dan
5|Chris
6|Dan
7|Bob
Select cells D1:D4 and enter in this formula:
=INDEX($A:$A,MATCH($C$1,$A:$A,0)+TRANSPOSE({0,1,2,3}))
Then use ctrl + shift + enter
2b. Horizontal Sublist, Fixed Length:
Sample data and result format, with fixed length of 4
A B C D E F G
----------------------------------------------------------
1|John Start Value Amy Amy Amber Chris Dan
2|Jane
3|Amy
4|Amber
5|Chris
6|Dan
7|Bob
Same as last formula without TRANSPOSE and selecting cells D1:G1:
=INDEX($A:$A,MATCH($C$1,$A:$A,0)+{0,1,2,3})
Again, use ctrl + shift + enter
Note: To increment the length add additional values to the array {0,1,2,3, ...}