On Mon, Oct 11, 2010 at 10:16 AM, clee <cheel...@gmail.com> wrote: > > I have data that looks like this: > > start end value > 1 4 2 > 5 8 1 > 9 10 0 > > > I want to transform the data so that it becomes: > > startend value > 1 2 > 2 2 > 3 2 > 4 2 > 5 1 > 6 1 > 7 1 > 8 1 > 9 0 > 10 0 > > I've written a for loop that can do the transformation BUT I need to do this > on very large datasets (millions of rows). Does anyone know of an R package > that has a function that can do this transformation?
A very similar question was just asked recently. See this: https://stat.ethz.ch/pipermail/r-help/2010-October/255791.html -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.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.
