Explain return of #N/A
Hi Folks!
Trying to extract uniques from a list and make it dynamic. It works as long
as there are at least 2 entries in the list. If there is only 1 entry in the
list the formula errors but i don't understand why.
The formula without the error trap: (array)
=INDEX(List,MATCH(0,COUNTIF(A$1:A1,List),0))
List is a dynamic range name.
With only a single entry in List and A1 being empty, this is how the formula
evaluates:
=INDEX({1},MATCH(0,0,0))
Match returns #N/A when it should return 1 since 0 matches 0 and it's in the
first position of the lookup_array and the result of the entire formula
shoud be 1 since 1 is in the first position of the Index array.
Can anyone explain why this is not working?
Thanks
Biff
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