Reputation: 302
For the given sample data, I need a formula to find the difference between E2-E7 which is comparing today's hourly data with exact time of the previous week.
P.S. 3/27 11.00 AM
has to be compared with 3/20 11.00 AM
not with 11.00 PM.
C D E F G H Row-1 Date Time X1 X2 X3 X4 Row-2 3/27 11:00 AM 760197 408260 359812 77.55% Row-3 3/27 10:00 AM 758371 369609 326323 78.00% Row-4 3/27 9:00 AM 756123 313521 278248 78.31% Row-5 3/27 8:00 AM 753097 232591 206849 78.26% Row-6 3/21 11:00 PM 760197 408260 359812 77.55% Row-7 3/21 11:00 AM 760197 408260 359812 77.55%
Upvotes: 2
Views: 3189
Reputation: 8587
This is an illustration of a solution, and could for sure be simplified.
But maybe you can use it...
As you see, the formulas used are:
=C2&D2
=C2-DAY(7)
=J2&D2
=MATCH(K2,I:I,0)
=E2-INDIRECT("E"&L2)
Hope it helps.
Upvotes: 0
Reputation: 59440
Combine Date and Time (say in ColumnA) and in Row2 use:
=IFERROR(E2-VLOOKUP(A2-7,A:E,5,FALSE),"")
Copy down as required.
Upvotes: 2