Hello,
I have a data.frame (ac.aaa) with lots of information of individual operated
patients. The interesting ones here are "hospital" which is a factor and
"op.year" which is an integer (length = 2436). In another data.frame (op.quot)
I have "hospital2" again a factor and "year" again an integer together with
information of "#operated / #arrived" for each year and hospital (length =
416).
I try to match
match(c(ac.aaa$hospital, ac.aaa$op.year), c(op.quot$hospital, op.quot$year))
unfortunately this gives a vector of length = 4872 so I'm doing it wrong. It
appears as if I fail to bind 'hospital and op.year' as well as 'hospital2 and
year' so hospital are matched to hospital2 and op.year to year and no matching
the combination wich is what i want. See my problem?
There must be a way!
Please, help me
Sincerely Fredrik Lundgren
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