search for: tp3694912p3697067

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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