Notes inlined below, -pd
On 20 Nov 2013, at 18:19 , John Fox <j...@mcmaster.ca> wrote: > Dear Jonathan et al, > > First, thank you to all who responded. As I said, I haven't noticed this > problem myself, but I'll try again on my Mac later today when I have some > time and see whether I can reproduce it. I suspect that this is a > tcltk-related issue, not specific to the Rcmdr, but I don't know that for > sure. > Affirmative. You can get similar behaviour from library(tcltk); demo(tkfaq) in R.app. It doesn’t seem to be happening with R in a Terminal window. You can snap out of it temporarily by switching to the R console and back. So a working hypothesis is that something is "backgrounding" the R process after a while, if it doesn’t have input focus. Since the tcltk event loop runs off the keyboard loop, we have the trouble. My take is that someone needs to take a look at how R.app handles keyboard input, in particular the timeout aspect. > In the meantime, here are two things to try: > > (1) Reijo Sund suggested trying to run R and the Rcmdr from the command line > (i.e., in a terminal window), to see whether the problem manifests itself > there. The Rcmdr doesn't need R.app. > > (2) It's possible that the slowdown is caused by the way that the Rcmdr > handles R Markdown documents. The overhead gets greater as the session > proceeds. To test this possibility, you could suppress the R Markdown tab > (via the Rcmdr Tools -> Options menu, Output tab -- uncheck the box for R > Markdown) and see whether the problem disappears. > Negative. I see the issue even with an older Rcmdr version without the Markdown stuff. > Please let me know what happens. -- 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-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
