On Mon, Sep 27, 2010 at 7:49 AM, statquant2 <statqu...@gmail.com> wrote: > > thank you very much for this sql package, the thing is that thoses table I > read are loaded into memory once and for all, and then we work with the > data.frames... > Do you think then that this is going to be quicker (as I would have thougth > that building the SQL DB from the flat file would already be a long > process...)?
Even including that read.csv.sql is typically several times faster than unoptimized read.csv for large files. See the introductory remarks on the sqldf home page which specifically address that. http://sqldf.googlecode.com In fact, just try it and see whether its ok for you. Its just one line of code to read in a file. -- 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.
