Daniel, thanks for the help. I finally made it, doing the merging separately.
Daniel Malter wrote: > > On a different note: how are you matching if AA has multiple matches in > BB? > About that, all I have to do is check whether, for any of the BB which matches with AA, the indicator equals 1. If not, the dummy variable assume the value 0 in the original data. Again, thank you for the pacience. -- View this message in context: http://r.789695.n4.nabble.com/Big-data-and-column-correspondence-problem-tp3694912p3699988.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
