I have an Excel log that tracks individual occurrences of a particular event during each day. One row per occurrence, date, time, certain other variables. There are between 0 (unusual) and 15 daily occurrences, generally about 3-5/day. I am interested in the weekly trends over time. I now have about 18 months of daily data.
In a PVT I can easily count a weekly total (Pivot Analyse/Group/Day/7 days) for each week. What I want is a daily average by week, rather than a total by week.
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