I need to populate a sheet on Excel with averages in 24 hours blocks. I have a sheet with raw data every 30 minutes and another "averages" sheet where I write the "FROM" and "TO" dates (usually 24 hours range) and then the averages for all columns in the other sheet (48 cells in each average as the data is grabbed every 30 minutes).
Example Data Sheet:
06/01/2013 06:00 AM 5 10
06/01/2013 06:30 AM 4 12
06/01/2013 07:00 AM 3 11
06/01/2013 07:30 AM 5 09
Example Averages Sheet:
From 06/01/2013 06:00 AM To 06/02/2013 06:00 AM 4.5 11.5
Why does AVERAGE with two VLOOKUPs doesn't work? It works if I write a comma separating the two numbers and make an average between them but not if I use ":" to average a series of data between those two VLOOKUPs. Any ideas?
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