Dear Peter, > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Peter Dalgaard > Sent: Wednesday, October 31, 2007 9:54 AM > To: Adrian Dusa > Cc: r-devel@r-project.org > Subject: Re: [Rd] slow tcl/tk > > Adrian Dusa wrote: > > Dear list, > > > > Building my QCAGUI package using Rcmdr 1.3.0, under R 2.6.0 (using > > Kubuntu > > Gutsy) I noticed the library starts visibly slower than... > somewhere > > in the past. > > > > I used the same version of Rcmdr under previous versions of > R and the > > tcl/tk window used to open instantly. Under the current version > > though, the window take seconds to open: first it builds the base > > window, then the menus and finally the complete window. > > > > The whole process takes about five seconds. > > I don't think it has anything to do with the Linux version, > because I > > noticed the same behavior under the previous one as well. > > > > Is there something changed about tcl/tk in R 2.6.0? > > > > > Hmm, there's an event loop messup which was fixed in > R-patched. The main effect of that one was that scrollbars > could go crazy. Not sure whether it might cause your kind of > symptoms, but you might check out the fixed version. > > It doesn't seem to make much of a difference here. Rather, I > suspect that Rcmdr itself got changed and a number of things > that used to be fixed are now generated programmatically.
It's possible that I'm missing something, but I don't think that there have been recent changes to the Rcmdr that would account for this difference (and note that I don't see it under Windows). In particular, I think that the change coincided with R-2.6.0 (which seems to be Adrian's experience too). > There's certainly a lot of > eval(parse(...)) stuff going on. (This sort of code always > makes me a little suspicious, but I haven't by far studied it > well enough to say whether there might be a more efficient way.) The awkward eval-parses have always been there. There's probably a better way to do at least some of this, but I haven't been able to think of it. Regards, John > > > Thanks in advance, > > Adrian > > > > > > > -- > O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B > c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K > (*) \(*) -- University of Copenhagen Denmark Ph: > (+45) 35327918 > ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: > (+45) 35327907 > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
