One thing to keep in mind is the "no side effects" rule in R. Almost all variables are copied on assignment/modification. Of course, there's also lazy instantiation, so the copy isn't actually constructed unless it needs to be, but this can impact the expected performance of more complicated data structures built in pure R.
Jamie Olson School of Computer Science Carnegie Mellon University 5000 Forbes Ave. Pittsburgh, PA 15213 jfol...@cs.cmu.edu On Sun, Jun 12, 2011 at 7:36 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us>wrote: > Lists are recursive and heterogenous in R. Just assign the values to > elements in lists and assign those lists to elements in other lists to build > your tree. > --------------------------------------------------------------------------- > Jeff Newmiller The ..... ..... Go Live... > DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... > Live: OO#.. Dead: OO#.. Playing > Research Engineer (Solar/Batteries O.O#. #.O#. with > /Software/Embedded Controllers) .OO#. .OO#. rocks...1k > --------------------------------------------------------------------------- > Sent from my phone. Please excuse my brevity. > > Jaimin Dave <davejaim...@gmail.com> wrote: > > Hello Everyone, > I am new to R and would like to create a quad tree in R. However the > problem > is that I don't think R has pointers. Is there any way to create a tree in > R? > > 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. > > > [[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. > [[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.
