Re: [Rd] Date vs date
On Fri, 14 Sep 2007, hadley wickham wrote:
3. temp - as.Date('1990/1/1') - as.date('1953/2/5')
sqrt(temp)
Error in Math.difftime(temp3) : sqrtnot defined for difftime objects
Minor bug: no space before the word 'not'
Major: this shouldn't fail.
Arguably, it should (Is this a difftime object? Which units?).
I'd advise against numeric operation on difftime objects in general,
because of the unspecified units. These are always days when working
with Date objects, but with general time objects it is not predictable.
So I'd recommend sqrt(as.numeric(temp, units=days)).
It fails by design. Using sqrt() on a measurement that has an arbitrary
origin would not have been good design.
Why not just always use seconds for difftime objects? An attribute
could control how it was formatted, but would be independent of the
underlying representation.
Because of leapseconds and changes to/from DST (which require knowing the
timezone and its transition times).
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] (PR#9910) Incomplete library linking for grDevices.so on
What compiler system is this? And what settings were used? We are not seeing such a problem on Solaris 10 (neither Sparc nor x86_64) with the Sun Studio 11 compilers they shipped with (a month or two ago). Note that the error message is not to do with subject line: it is launching R and /export/home/gordonp/Desktop/R-alpha/lib/libRlapack.so that has the problem. I don't think that configure can be expected to know about all possible systems on which R might be built, which is why we allow users to set variables such as FLIBS and MAIN_LD. We do try to document the settings needed for known systems in the R-admin manual, and that includes all the Solaris systems we have encountered or seen reports from. On Fri, 14 Sep 2007, [EMAIL PROTECTED] wrote: Full_Name: Paul Gordon Version: 2.6.1 (alpha) OS: Solaris 10 Submission from: (NULL) (136.159.169.6) When compiling R 2.6.1 (alpha 2007-09-13), grDevices.so fails to link properly because of a missing symbol __vlog_. That is not what the error message reproduced below says, which comes from the runtime loader. This symbol is defined in libmvec.so, but no -lmvec is add by the configure script. Manually adding -lmvec to the linking command allows grDevices to compile. The error output of the make command (for a 64-bit version of R) is given below: cc -G -m64 -L/lib/64 -L/usr/lib/64 -L/usr/local/lib/64 -L/usr/ucblib/sparcv9 -L/usr/ccs/lib/sparcv9 -L/opt/SUNWspro/prod/lib/sparcv9 -o grDevices.so chull.o devNull.o devPicTeX.o devPS.o devQuartz.o init.o Warning in solve.default(rgb) : unable to load shared library '/export/home/gordonp/Desktop/R-alpha/modules//lapack.so': ld.so.1: R: fatal: relocation error: file /export/home/gordonp/Desktop/R-alpha/lib/libRlapack.so: symbol __vlog_: referenced symbol not found Error in solve.default(rgb) : lapack routines cannot be loaded Error: unable to load R code in package 'grDevices' __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] Building an R GUI using gWidgets and RGtk2
I'm developing a GUI in R that will be used to monitor financial portfolio performance. The GUI will be distributed as an R package. So far, I've decided to use the cairoDevice, RGtk2, gWidgets, and gWidgetsRGtk2 packages to develop the GUI. I am trying to decide what would be the best way to structure the GUI would be. Why not consider to build the GUI layer in some other (imho more suitable) language and just call the R functionality from there? Depending on your platform/requirements you could e.g. use Delphi, Python, or some webbased interface (Morfik, php, ...). Python would be my favorite (but I want to add that I didn't try this out yet, it's only what I probably would check out (as an alternative to an R-based interface)). -- Regards, Hans-Peter [[alternative HTML version deleted]] __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
[Rd] R-2.6.0 for Windows, semi-transparent colours and layout()
Hi, The added support for semi-transparent colours in `windows' under R-2.6.0 for Windows is much appreciated. However, I've discovered that issuing a `layout' (or `par' with arguments `mfcol'/`mfrow') call and then trying to plot several figures with semi-transparent colour on the same page results in only the first one being fully drawn. E.g. x - rnorm(1) y - rnorm(1) layout(matrix(1:2, ncol = 2)) plot(y ~ x, pch = 16, col = rgb(1, 0, 0, 0.15)) plot(y ~ x, pch = 16, col = rgb(1, 0, 0, 0.15)) results in the second one having only the axes and box, but no data points. This is under sessionInfo() R version 2.6.0 alpha (2007-09-14 r42843) i386-pc-mingw32 locale: LC_COLLATE=Swedish_Sweden.1252;LC_CTYPE=Swedish_Sweden.1252;LC_MONETARY=Swedish_Sweden.1252;LC_NUMERIC=C;LC_TIME=Swedish_Sweden.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base Henric __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
[Rd] r cmd build
On Windows Vista hhc.exe is not available. One can do this on an install: rcmd install --docs=normal myPackage to avoid the message about hhc.exe; however, rcmd build does not appear to support --docs=normal so one cannot do a build without getting a message about hhc.exe (although the build still proceeds). __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
