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32527
2010 Sep 06
3
Failure to aggregate
I have a (very big - 1.5 rows) dataframe with a (POSIXt" "POSIXlt") column h
(hour). Surprisingly, I cannot calculate a simple aggregate over the
dataframe.
> n.h1 = sqldf("select distinct h, count(*) from x group by h")
Error in sqliteExecStatement(con, statement, bind.data) :
RS-DBI driver: (error in statement: no such table: x)
In addition: Warning message:
In