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Index - Offset - Match Issues
I have a large dataset (about 55,000 records) that consists of instrument
readings taken at different times on different days (between 24 - 40 readings per day). The data is in the format: Col A - dates; Col B - times (24 hour clock format); and Col C - instrument readings. I want to extract (on another worksheet) the maximum instrument reading per day and the time of that reading (Col A - dates; Col. B - max reading for the date in Col A; Col. C - time of that reading). I have successfully extracted the maximum instrument reading with the array formula: {=MAX(IF(Sheet1!A1:A55000=A1,Sheet1!C1:C55000))} However, I have not been able to extract the time of the maximum reading. Is the solution come combination of INDEX and /or MATCH and/or OFFSET? Any help appreciated. I am using XL2002. Ray Wright |
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