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#1
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Which is better? LOOKUP or INDEX?
I have data that's 50 some odd columns wide and about 500 rows deep. Is
there a more efficient method of looking up values using either a LOOKUP function or an INDEX function? I'm asking because I notice Excel starts to lag when I use VLOOKUP with such a large amount of data and I want to know if it would be worth my time changing it to a INDEX/MATCH funtion. Does one or the other work quicker? |
#2
Posted to microsoft.public.excel.worksheet.functions
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Which is better? LOOKUP or INDEX?
LOOKUP would be the best *BUT* the data *MUST* be sorted in ascending order
and if there isn't an exact match LOOKUP will find the next lowest item. This isn't optional like it is with VLOOKUP or INDEX/MATCH. After LOOKUP, INDEX/MATCH would be the next best option. Also note that if your data is sorted VLOOKUP can be a lot faster than when the data is not sorted. -- Biff Microsoft Excel MVP "PYO1012" wrote in message ... I have data that's 50 some odd columns wide and about 500 rows deep. Is there a more efficient method of looking up values using either a LOOKUP function or an INDEX function? I'm asking because I notice Excel starts to lag when I use VLOOKUP with such a large amount of data and I want to know if it would be worth my time changing it to a INDEX/MATCH funtion. Does one or the other work quicker? |
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