It's rude to ask a question both on r-help and on stackoverflow (http://stackoverflow.com/questions/22685896), because people might spend their time answering your question when it's already been answered elsewhere.
Hadley On Thu, Mar 27, 2014 at 6:01 AM, Rohit Gupta <rhtgpt...@gmail.com> wrote: > I have a data A which looks like > > > author_id paper_id prob > 731 24943 1 > 731 24943 1 > 731 688974 1 > 731 964345 .8 > 731 1201905 .9 > 731 1267992 1 > 736 249 .2 > 736 6889 1 > 736 94345 .7 > 736 1201905 .9 > 736 126992 .8 > > The output I am desiring is: > > author_id paper_id > 731 24943,24943,688974,1201905,964345 > 736 6889,1201945,126992,94345,249 > > That is paper_id are arranged according to decreasing order of > probability.How could this be done? > > Thanks > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. -- http://had.co.nz/ ______________________________________________ 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.
