ok
btw thanks


On Thu, Mar 27, 2014 at 5:55 PM, Hadley Wickham <h.wickham@gmail.com> wrote:

> 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 <rhtgpt789@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/
>

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