Deifine range ignoring duplicates

  • Thread starter Thread starter Gotroots
  • Start date Start date
G

Gotroots

In Define Name in Excel 2007 I want to create a formula for A:A that excludes
duplicates in the range.

How do you create this formula.
 
You could use a column of formulas that would extract and gather together the unique values from
column A, and reference those values using a dynamic named range.

HTH,
Bernie
MS Excel MVP
 
Put this in one column over:
=IF(COUNTIF($A$1:A1,A1)=1,A1,"")

Put this one column over from that; enter with ctrl+shift+enter
=IF(ROW()-ROW($C$1:$C$20)+1>ROWS(B1:B20)-COUNTBLANK(B1:B20),"",INDIRECT(ADDRESS(SMALL((IF(B1:B20<>"",ROW(B1:B20),ROW()+ROWS(B1:B20))),ROW()-ROW($C$1:$C$20)+1),COLUMN(B1:B20),4)))

HTH,
Ryan--
 
Hi

Tested out your solution and here is how i got on:
=IF(COUNTIF($A$1:A1,A1)=1,A1,"")
Click to expand...

this formula works by removing the duplicates
=IF(ROW()-ROW($C$1:$C$20)+1>ROWS(B1:B20)-COUNTBLANK(B1:B20),"",INDIRECT(ADDRESS(SMALL((IF(B1:B20<>"",ROW(B1:B20),ROW()+ROWS(B1:B20))),ROW()-ROW($C$1:$C$20)+1),COLUMN(B1:B20),4)))
Click to expand...

Some records were not returned with this formula, don't know why.
 
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