It isn't at all clear to me how you are creating the groups. They aren't the unique combinations of Component and TLA. They might be based only on TLA value: in your example TLA1 and TLA2 form one group, and TLA3 the other.
Without understanding your logic, I can't replicate it with R code. Sarah On Sun, Mar 27, 2016 at 8:56 PM, Satish Vadlamani <satish.vadlam...@gmail.com> wrote: > Hello All: > I would like to get some help with the following problem and understand how > this can be done in R efficiently. The header is given in the data frame. > > *Component, TLA* > C1, TLA1 > C2, TLA1 > C1, TLA2 > C3, TLA2 > C4, TLA3 > C5, TLA3 > > Notice that C1 is a component of TLA1 and TLA2. > > I would like to form groups of mutually exclusive subsets and create a new > column called group for this subset. For the above data, the subsets and > the new group column value will be like so: > > *Component, TLA, Group* > C1, TLA1, 1 > C2, TLA1, 1 > C1, TLA2, 1 > C3, TLA2, 1 > C4, TLA3, 2 > C5, TLA3, 2 > > Appreciate any help on this. I could have looped through the observations > and tried some logic but I did not try that yet. > > -- > > Satish Vadlamani > > [[alternative HTML version deleted]] > And please don't post in HTML. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
