On Tue, 2007-06-19 at 21:09 +0100, Prof Brian Ripley wrote: > On Tue, 19 Jun 2007, Marc Schwartz wrote: > > > > > > > On Tue, 2007-06-19 at 15:39 -0400, Bill Hunsicker wrote: > >> R-Help, > >> > >> I am executing a R script and would like to put multiple plots into a > >> single file. For some reason the contents of plotfile.jpg always seem to > >> contain the last plot and not all plots. > >> > >> If I do same thing with pdf, a multiple plot file is created. > >> > >> Can you help me? > >> > >> Regards, > >> Bill > > > > There is no notion of a 'page' in bitmapped devices as there is with PDF > > or PS devices. Thus, each time you call plot(...) with a bitmapped > > device, the previous output is lost. > > But there is a concept of multiple pages in separate files and that is the > default, Rplot001.jpg, Rplot002.jpg and so on. > > The JPEG format only supports one 'page' per file
Quite true. I thinking of 'pages' in the context of a PDF or PS file, as Bill had noted above and contrasting that with a bitmapped image of a defined finite 2D pixel space. Thanks for clarifying. Regards, Marc ______________________________________________ R-help@stat.math.ethz.ch 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.
