[R] merge more than two tables
Christian Schulz
ozric at web.de
Tue Apr 6 12:49:22 CEST 2004
Hi
have anybody a hint how i could merge i.e. 10 data.frames togehter.
Ok i could do one merge after another but perhaps with few coding exist a
better way?
system.time(dm1 <- merge(Base,sub1 ,by.x ="MEMBERNO",by.y="MEMBERNO",all.x=T))
system.time(dm2 <- merge(dm2,sub2,by.x="MEMBERNO",by.y="MEMBERNO",all.x=T))
system.time(dm3 <- merge(dm2,sub3,by.x="MEMBERNO",by.y="MEMBERNO",all.x=T))
....................
many thanks , christian
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