edestefano
New Member
- Joined
- Nov 17, 2010
- Messages
- 1
Barry Houdini provided the following which helped divide my data set into 15 min chunks of time and list the number of counts in each time period:
=SUMPRODUCT((FLOOR(MOD(B$1:B$4,1),"0:15")=C1)+0
where B is time of an event in hours:minutes.
This worked well on a small data set using 15 minute time periods. However, my data set is large (90 days) and I want to divide it into 5 hour time periods. I think I'm having problems incorporating the date in the above formula. I tried to make column B include date AND time, but I'm not sure how to define the significance variable for the FLOOR.
=SUMPRODUCT((FLOOR(MOD(B$1:B$4,1),"0:15")=C1)+0
where B is time of an event in hours:minutes.
This worked well on a small data set using 15 minute time periods. However, my data set is large (90 days) and I want to divide it into 5 hour time periods. I think I'm having problems incorporating the date in the above formula. I tried to make column B include date AND time, but I'm not sure how to define the significance variable for the FLOOR.
