[R] create groups from tallies

[Spencer Graves]

Have you considered "aggregate"?

hth.  spencer graves

Jeff D. Hamann wrote:
> I'm trying to figure out a way of grouping data from simple tally data. For
> example, I would like to turn the following table into the table at the
> bottom. I would normally do this in sql statements, but I won't have control
> over the data, so that's not an option...
> 
> Thanks,
> Jeff.
> 
> dbh, tally
> 5 1
> 12 2
> 6 1
> 10 1
> 6 1
> 12 1
> 10 2
> 9 1
> 3 1
> 5 1
> 8 1
> 3 1
> 6 1
> 5 1
> 10 1
> 5 1
> 4 1
> 22 1
> 20 1
> 15 1
> 14 1
> 11 1
> 15 1
> 10 1
> 8 1
> 14 1
> 10 1
> 11 1
> 16 1
> 17 1
> 10 1
> 12 1
> 9 1
> 6 1
> 11 1
> 18 1
> 7 1
> 8 1
> 9 1
> 12 1
> 13 1
> 14 1
> 16 1
> 15 1
> 8 1
> 35 1
> 5 1
> 8 1
> 14 1
> 11 1
> 12 1
> 20 1
> 10 1
> 27 1
> 7 1
> 8 2
> 12 2
> 5 1
> 20 1
> 12 1
> 17 1
> 22 1
> 10 1
> 13 1
> 9 1
> 27 1
> 9 1
> 18 1
> 12 1
> 15 2
> 18 1
> 22 1
> 16 1
> 17 1
> 11 1
> 15 1
> 8 1
> 14 1
> 18 1
> 11 1
> 14 1
> 9 1
> 14 1
> 8 1
> 9 1
> 10 1
> 20 1
> 11 1
> 10 1
> 6 1
> 10 1
> 16 1
> 8 2
> 14 2
> 7 1
> 5 1
> 8 1
> 15 1
> 13 2
> 13 1
> 15 1
> 9 2
> 16 1
> 18 1
> 12 1
> 10 1
> 17 1
> 15 1
> 7 1
> 17 1
> 20 1
> 5 1
> 7 1
> 6 1
> 7 1
> 4 1
> 8 1
> 7 1
> 4 1
> 16 1
> 6 1
> 5 1
> 3 1
> 5 1
> 17 1
> 6 1
> 13 1
> 10 1
> 6 1
> 7 1
> 9 1
> 5 1
> 6 1
> 9 1
> 22 1
> 2 1
> 8 1
> 5 1
> 14 1
> 12 1
> 14 1
> 9 2
> 19 1
> 18 1
> 17 1
> 23 1
> 21 1
> 22 1
> 16 1
> 15 1
> 13 1
> 9 1
> 14 1
> 11 1
> 19 1
> 19 1
> 20 1
> 25 1
> 22 1
> 22 1
> 17 1
> 24 1
> 15 1
> 8 1
> 3 1
> 6 1
> 7 1
> 11 1
> 11 1
> 11 1
> 5 1
> 19 1
> 16 1
> 12 1
> 9 1
> 16 1
> 13 1
> 12 1
> 18 1
> 18 1
> 19 1
> 11 1
> 12 1
> 11 1
> 13 1
> 13 1
> 12 1
> 10 1
> 15 1
> 6 1
> 11 1
> 9 1
> 8 1
> 7 1
> 12 1
> 15 1
> 15 1
> 12 1
> 17 1
> 17 1
> 20 1
> 9 1
> 8 1
> 16 1
> 19 1
> 25 1
> 22 1
> 23 1
> 21 1
> 23 1
> 19 1
> 8 1
> 16 1
> 10 1
> 16 1
> 11 1
> 11 1
> 10 1
> 13 1
> 17 1
> 15 1
> 6 1
> 23 1
> 21 1
> 12 1
> 14 1
> 17 1
> 17 1
> 12 1
> 12 1
> 14 1
> 17 1
> 17 1
> 11 1
> 13 1
> 19 1
> 27 1
> 10 1
> 33 1
> 9 1
> 10 1
> 15 1
> 12 1
> 11 1
> 8 1
> 8 1
> 10 1
> 7 1
> 10 1
> 12 1
> 9 1
> 12 1
> 7 1
> 10 1
> 9 1
> 11 1
> 12 1
> 10 1
> 10 1
> 11 1
> 16 1
> 13 1
> 8 1
> 17 1
> 15 1
> 19 1
> 16 1
> 12 1
> 7 1
> 11 1
> 15 1
> 15 1
> 14 1
> 14 1
> 8 1
> 6 1
> 7 1
> 23 1
> 4 1
> 4 1
> 7 1
> 6 1
> 9 1
> 10 1
> 15 1
> 23 1
> 8 1
> 13 1
> 8 1
> 21 1
> 24 1
> 22 1
> 8 1
> 14 1
> 24 1
> 13 1
> 17 1
> 9 1
> 25 1
> 9 1
> 22 1
> 7 1
> 20 1
> 13 2
> 15 1
> 9 1
> 17 1
> 13 1
> 18 1
> 9 1
> 19 1
> 7 1
> 14 1
> 15 1
> 9 1
> 16 1
> 12 1
> 7 1
> 9 1
> 11 1
> 23 1
> 8 1
> 19 1
> 10 1
> 23 1
> 6 1
> 28 1
> 32 1
> 9 1
> 6 1
> 27 1
> 14 1
> 18 1
> 11 1
> 14 1
> 10 1
> 15 1
> 9 1
> 21 1
> 23 1
> 16 2
> 19 1
> 22 1
> 16 1
> 13 1
> 11 1
> 29 1
> 
> 
> "dbh","SumOftally"
> 2,1.00
> 3,4.00
> 4,5.00
> 5,13.00
> 6,17.00
> 7,18.00
> 8,26.00
> 9,29.00
> 10,27.00
> 11,24.00
> 12,27.00
> 13,19.00
> 14,20.00
> 15,23.00
> 16,18.00
> 17,18.00
> 18,10.00
> 19,12.00
> 20,8.00
> 21,5.00
> 22,11.00
> 23,9.00
> 24,3.00
> 25,3.00
> 27,4.00
> 28,1.00
> 29,1.00
> 32,1.00
> 33,1.00
> 35,1.00
> 
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