Hi,
I know how to create a unique primary list. How do I create a unique secondary list based on a category in the primary list without having to make a unique primary list first?
I hope this is not as confusing as it sounds. I have included a mock excel spreadsheet that will demonstrate what I am trying to do.
Thanks for your help adn suggestions!! P.S has to work in excel 2010.
Thanks,
Mia
Last edited by AliGW; 01-16-2021 at 02:17 AM. Reason: Solved tag applied - no need to edit the title.
How about
=IFERROR(INDEX(Table1[Category 2],AGGREGATE(15,6,(ROW(Table1[Category 2])-ROW('Messy Data set'!B$3)+1)/(Table1[Category 1]=B$3)/(ISNA(MATCH(Table1[Category 2],B$3:B3,0))),1)),"")
In B4 copied down:
=IFERROR(INDEX(Table1[Category 2],AGGREGATE(15,6,ROW($3:$500)/(Table1[Category 1]=Table2[[#Headers],[Plant]]),ROW(1:1))),"")
Ali
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one option, for XL2010, utilising structured references:
B4:
=IF($B3="","",IFERROR(INDEX(Table1[Category 2],AGGREGATE(15,6,(ROW(Table1[Category 2])-ROW(Table1[#Headers]))/(Table1[Category 1]=$B$3)/ISNA(MATCH(Table1[Category 2],$B$3:$B3,0)),1)),""))
copied down
if you're working with big datasets I would advocate the pre-emptive null string test on prior result -- this will limit how many times you execute the AGGREGATE unnecessarily (to once) - without doing a unique count (expensive)
Thanks. It's good to see the different options to use. These worked for me.
If that takes care of your original question, please select Thread Tools from the menu link above and mark this thread as SOLVED. I did this for you today - no need to edit the thread title.
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