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average if - between range



 
 
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  #1  
Old June 2nd, 2010, 02:29 PM posted to microsoft.public.excel.worksheet.functions
Chris26
external usenet poster
 
Posts: 17
Default average if - between range

Hi
I have the following data
Col-A Col-B
1/10/2009 10:20 0.006
1/10/2009 10:22 0.007
1/10/2009 10:24 0.006
........
1/06/2010 15:00 0.015

etc
What I would like to be able to do, is to calculate the average of the
vaules in Col B only between certain time periods i.e. 2am and 4am for each
day in the data set

Any help appreciated.
Many Thanks
Chris
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  #2  
Old June 2nd, 2010, 02:46 PM posted to microsoft.public.excel.worksheet.functions
Don Guillett[_2_]
external usenet poster
 
Posts: 607
Default average if - between range

=AVERAGE(IF((HOUR(F8:F28)=10)*(HOUR(F8:F28)11),G 8:G28))
An array formula that must be entered using ctrl+shift+enter
--
Don Guillett
Microsoft MVP Excel
SalesAid Software

"Chris26" wrote in message
...
Hi
I have the following data
Col-A Col-B
1/10/2009 10:20 0.006
1/10/2009 10:22 0.007
1/10/2009 10:24 0.006
.......
1/06/2010 15:00 0.015

etc
What I would like to be able to do, is to calculate the average of the
vaules in Col B only between certain time periods i.e. 2am and 4am for
each
day in the data set

Any help appreciated.
Many Thanks
Chris


  #3  
Old June 3rd, 2010, 12:26 PM posted to microsoft.public.excel.worksheet.functions
Jacob Skaria
external usenet poster
 
Posts: 5,952
Default average if - between range

With start datetime in cell C1 and enddate time in cell D1 try the below
array formula. Press CTRL+SHIFT+ENTER to enter the formula. If successful in
'Formula Bar' you can notice the curly braces at both ends like "{=formula}"

=AVERAGE(IF((A1:A10=C1)*(A1:A10=D1),B1:B10))

--
Jacob (MVP - Excel)


"Chris26" wrote:

Hi
I have the following data
Col-A Col-B
1/10/2009 10:20 0.006
1/10/2009 10:22 0.007
1/10/2009 10:24 0.006
.......
1/06/2010 15:00 0.015

etc
What I would like to be able to do, is to calculate the average of the
vaules in Col B only between certain time periods i.e. 2am and 4am for each
day in the data set

Any help appreciated.
Many Thanks
Chris

 




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