I have found two prior instances of this question in R-help, but I can't find the answer, and I'm giving up on mindless tinkering.
http://tolstoy.newcastle.edu.au/R/help/03a/5994.html https://stat.ethz.ch/pipermail/r-help/2004-December/062259.html I must be able to pipe the poltting commands to stdin and receive the plot on stdout, with errors written to stderr, should any occur. Here's what I tried: file test.r: ~~~~~~~~~~~~~~~~~~~~~~~~~~ postscript(stdout()) plot(0) ~~~~~~~~~~~~~~~~~~~~~~~~~~ This command: cat test.r | r --vanilla --slave writes the output to a file named "1" I have also tried: postscript(file=stdout()) postscript(file=file("stdout")) In the latter case, the output goes to the file named "3". Other graphics devices do the same thing. It is interesting that write.table() supports the file=stdout() idiom. If there is no official option to do this, I will appreciate a hint about the spot in the code where I can fix it. Thanks, --Gene ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > sessionInfo() R version 2.5.1 (2007-06-27) i386-apple-darwin8.10.1 locale: C attached base packages: [1] "stats" "graphics" "grDevices" "utils" "datasets" "methods" [7] "base" ______________________________________________ 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.
