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st: Complicated counting
This is perhaps a mundane question (compared to some posts), but
important to me nonetheless:
My data looks like this:
I would like to create a variable with the number of hospitals that each
provider has worked at. For provider A it would be 1, for provider B it
would be 2.
Any help would be greatly appreciated.
Jesse Moore, MD
General Surgery Resident
Fletcher Allen Healthcare
University of Vermont
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