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MS Office Forum / Excel / Worksheet Functions / February 2007

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Which Excel Functions Require Arrays to be Sorted?

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ExcelMonkey - 28 Feb 2007 18:57 GMT
Can anyone tell me which Excel functions require sorted ascending arrays.  
For example, I know that the Lookup function only works if the array it looks
at is sorted in ascending fashion:

LOOKUP(LookupValue, Ascending Array)

Are there any other which require this?

Thanks

EM
George Nicholson - 28 Feb 2007 21:42 GMT
MATCH, VLOOKUP and HLOOKUP don't require that things be sorted in any order
*if* you use the optional arguments to look for an exact match.  If you want
approximate matches (the default, i believe, in all cases) then a sort order
is necessary.

Afaik, LOOKUP is the only function that requires sorted data under any
circumstance.

HTH,

> Can anyone tell me which Excel functions require sorted ascending arrays.
> For example, I know that the Lookup function only works if the array it
[quoted text clipped - 8 lines]
>
> EM
 
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