Seems like no one had responded to this one yet, so I'll take a stab:
## Generate some bogus data:
set.seed(45)
dat - cbind(expand.grid(LETTERS[1:2], 1:3), round(runif(6), 2))
names(dat) - c(state, psu, weight)
dat2 - data.frame(state=sample(c(A, B), 100, replace=TRUE),
I have two dataframes C and C1. Each has three columns viz. state, psu
and weight. The dataframes are of unequal size i.e. C1 could be
2/25/50 rows and C has 42000 rows. C1 is the master table i.e.
C1$state, C1$psu and C1$weight are never the same. ThisA. P., Urban, 0
is not so for C.
For
