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Excel? - Matching an absolute value to a range ..

Old 01-31-08, 01:13 PM
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Excel? - Matching an absolute value to a range ..

Hey all. I am in search of a solution and hope that someone may be kind enough to offer a little headway.

Data Set:

A - B - C
1 - Store # - Time - Inventory
2 - 139 - 17:15 - 950
3 - 139 - 18:15 - 870
4 - 139 - 19:15 - 850
5 - 139 - 20:15 - 850

Table:

E - F
Store # - Cut off Time
067 - 18:00
139 - 18:25
140 - 18:00
151 - 19:00

Basically what I am trying to do is out of a long data set of multiple stores and times get the inventory result for the closest time (only) given to the absolute cut off time listed within the table. -or- in this example, since the cut off time for 139 is 18:25 PM then my best inventory result for the closest time is 870.

Each "closest time" from the data set are time stamps from readings taken for a liquid product every hour.

=IF(VLOOKUP(A2,$E$2:$F$5,6,FALSE)=B2*,C2,0) is the formula I would consider for this excercise. However since the time value in each row within the data set will most likely never exactly match the time on the table - this formula does not work in its current form.

I've tried adding an arithmatic operators such "+-" or "+/-" where the asterick is situated in the formula but its not working.

Thank you in advance!
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Old 01-31-08, 02:53 PM
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Have you tried using True instead of False in your Vlookup? True is supposed to return a nearest value. I've never used it myself but might work in this case. Or, alternatively, maybe parse the hour out with HOUR() and try to get an exact match, within the hour?
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