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tp3694912p3695065
2011 Jul 26
2
Big data and column correspondence problem
Greetings,
I've been struggling for some time with a problem concerning a big database
that i have to deal with.
I'll try to exemplify my problem since the database is really big.
Suppose I have the following data:
AA = c(4,4,4,2,2,6,8,9)
A1 = c(3,3,5,5,5,7,11,12)
A2 = c(3,3,5,5,5,7,11,12)
A = cbind(A, A1, A2)
BB = c(2,2,4,6,6)
B1 =c(5,11,7,13,NA)
B2 =c(3,12,11,NA,NA)
B3