I'd second Peter's suggestion, but if you need every data point for whatever reason, you might also try passing the pch = "." option to qqnorm. On a test with 1e7 data points, it more than halved the resulting file size and with that many points, there's no loss in clarity with the different marker.
Michael On Wed, Dec 21, 2011 at 4:59 PM, peter dalgaard <pda...@gmail.com> wrote: > > On Dec 21, 2011, at 23:10 , Sam Steingold wrote: > >> Hi, >> When qqnorm on a vector of length 10M+ I get a huge pdf file which >> cannot be loaded by acroread or evince. >> Any suggestions? (apart from sampling the data). > > Sample intelligently? Things like > >> qq <- seq(-4,4,,10001) >> qqplot(qq,quantile(x,pnorm(qq)),type="l") > > or maybe > >> qqnorm(sort(x)[seq_along(x)%%100==50], type="l") > > (Those can likely be improved upon, but you get the picture.) > > >> Thanks. >> -- >> Sam Steingold (http://sds.podval.org/) on Ubuntu 11.10 (oneiric) X >> 11.0.11004000 >> http://mideasttruth.com http://honestreporting.com http://camera.org >> http://openvotingconsortium.org http://pmw.org.il >> http://thereligionofpeace.com >> A person without flaws probably lacks strengths either. >> >> ______________________________________________ >> 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. > > -- > Peter Dalgaard, Professor, > Center for Statistics, Copenhagen Business School > Solbjerg Plads 3, 2000 Frederiksberg, Denmark > Phone: (+45)38153501 > Email: pd....@cbs.dk Priv: pda...@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. ______________________________________________ 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.
