Hi > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Skála, Zdeněk (INCOMA GfK) > Sent: Friday, October 05, 2012 3:38 PM > To: r-help@r-project.org > Subject: [R] R: machine for moderately large data > > Dear all, > > I would like to ask your advice about a suitable computer for the > following usage. > I (am starting to) work with moderately big data in R: > - cca 2 - 20 million rows * 100 - 1000 columns (market basket data) > - mainly clustering, classification trees, association analysis (e.g. > libraries rpart, cba, proxy, party)
If I compute correctly, such a big matrix (20e6*1000) needs about 160 GB just to be in memory. Are you prepared for this? Maybe some suitable database interface shall be preferable. Regards Petr > > Can you recommend a sufficient computer for this volume? > I am routinely working in Windows but feel that Mac or some linux > machine might be needed. > > Please, respond directly to my email. > Many thanks! > > Zdenek Skala > zdenek.sk...@gfk.com > > > [[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. ______________________________________________ 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.
