I have seen this sort of appearance on screen when plotting very dense grids. When I use a different device, such as pdf(), no such artifacts appear. This supports Uwe's suggestion.
-Don At 7:38 PM +0100 3/8/08, Uwe Ligges wrote: >Paul Winward wrote: >> Hi, >> >> I have a plot with about 2 million points. It should be a fairly dense >> plot over the reals, but I'm seeing many narrow, white vertical lines >> uniformly spread in my plot where nothing was plotted. I'm using a >> period as the plot character. I've played around with the cex >> parameter, but I can't eliminate the white lines without making the plot >> look too blocky. > > >I guess this is just some artefact of your screens resolution. > >> I'm using R version 2.4.1. > >R-2.6.2 is recent! > >Uwe Ligges > > >> Thanks for any help, >> Paul >> >> ______________________________________________ >> 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. -- --------------------------------- Don MacQueen Lawrence Livermore National Laboratory Livermore, CA, USA 925-423-1062 [EMAIL PROTECTED] ______________________________________________ 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.