Provide some more information about the size of the data and the number of different ID combinations. I have found that in some cases like this using the 'sqldf' package helps since it can deal with large number of combinations.
On Tue, Jul 5, 2011 at 5:45 AM, UriB <uribl...@gmail.com> wrote: > Thanks for your reply > Note that I guess that there are many providerID and I get the error cannot > allocate vector of size 2.1 Gb > (I can use the same trick for most of the other fields) > > Is there a way to do the same only for providerID with relatively high > frequency? > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-build-a-matrix-of-number-of-appearance-tp3643248p3645550.html > Sent from the R help mailing list archive at Nabble.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. > -- Jim Holtman Data Munger Guru What is the problem that you are trying to solve? ______________________________________________ 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.
