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88 discussions - 344 posts

  • Has anyone yet tried incorporating rasterImage into the base image() function? It seems to make a *huge* difference, with a very small number of added/changed lines of code. (Of course I have barely ...
    Ben BolkerBen Bolker
    Feb 9, 2011 at 1:49 am
    Feb 14, 2011 at 9:17 pm
  • Hello, I am looking for CRAN packages that don't teach bad habits. Can I have suggestions? I don't mean the recommended packages that come with R, I mean the contributed ones. I've been sampling a ...
    Paul JohnsonPaul Johnson
    Feb 15, 2011 at 6:04 pm
    Feb 16, 2011 at 4:35 pm
  • Dear R-devel, I've written a numerical solver for SOCPs (second order cone programs) in R, and now I want to move most of the solver code into C for speed. I've written combined R/C packages before, ...
    Jason RudyJason Rudy
    Feb 20, 2011 at 12:50 am
    Feb 22, 2011 at 10:45 pm
  • Today I tried two build R-devel_2011-02-06.tar.gz from sources on FreeBSD 9.0-CURRENT (amd64) with gcc-4.5.2 and I got the following messages when configuring: ./configure [..SNIP..] checking whether ...
    Rainer HurlingRainer Hurling
    Feb 6, 2011 at 2:27 pm
    Feb 8, 2011 at 9:31 pm
  • Dear List, I'm trying to figure out some best practice way with respect to the naming conventions when building own packages. I'd like to minimize the risk of choosing function names that might ...
    Janko ThysonJanko Thyson
    Feb 16, 2011 at 9:29 am
    Mar 1, 2011 at 12:03 am
  • Many R packages depend on some unix libraries that are not part of most default installations. I often spend a significant amount of time figuring out where to get the appropriate libraries for ...
    Jeroen OomsJeroen Ooms
    Feb 4, 2011 at 2:31 am
    Feb 9, 2011 at 7:05 pm
  • Hi, I am doing a small experiment to test if I can use MathJax ( official site: http://www.mathjax.org ) in R's html help pages (i.e. options(help_type='html')) and it seems working with some minor ...
    GONG-YI LIAOGONG-YI LIAO
    Feb 2, 2011 at 8:00 am
    Feb 3, 2011 at 4:33 am
  • A bug was recently posted to the R bug database (which probably would better have been posted as a query here) as to why this happens: [1] 7.9 Two things I *haven't* done to help make sense of this ...
    Ben BolkerBen Bolker
    Feb 5, 2011 at 8:58 pm
    Mar 8, 2011 at 12:59 pm
  • By changing three lines in drop1 from access based on $ to access based on standard accessor methods (terms() and residuals()), it becomes *much* easier to extend drop1 to work with other model ...
    Ben BolkerBen Bolker
    Feb 23, 2011 at 2:14 pm
    Feb 24, 2011 at 8:36 am
  • Hi. That is a good idea. This was indeed the initial objective before starting matrixStats. After debating (mostly with myself) on what a consistent and solid API for arrays would look like I decided ...
    Henrik BengtssonHenrik Bengtsson
    Feb 15, 2011 at 6:11 pm
    Feb 16, 2011 at 5:37 pm
  • Dear all, I noticed in the latest R version (R.2.12.1) that the readPNG gives following warning when running the example code in the help file (or when using any other png for that matter) : 50: In ...
    Joris MeysJoris Meys
    Feb 14, 2011 at 3:05 pm
    Feb 15, 2011 at 2:21 pm
  • Is there documentation on R limits? That is, max matrix size, etc.? Diagnostics when limits are exceeded are not always meaningful. For example: Error in rep(0, 50000 * 50000) : invalid 'times' ...
    Dominick SamperiDominick Samperi
    Feb 12, 2011 at 12:09 am
    Feb 12, 2011 at 5:12 pm
  • This is not specifically a bug, but an (implicitly/obscurely) documented behavior of read.csv (or read.table with fill=TRUE) that can be quite dangerous/confusing for users. I would love to hear some ...
    Ben BolkerBen Bolker
    Feb 4, 2011 at 4:16 pm
    Mar 3, 2011 at 4:17 pm
  • I'm having a very odd problem with system(wait = FALSE). I'm not entirely sure whether it's a bug in R or a problem on our end. It's related to a post a month or so ago in R-help which got no ...
    Oliver SoongOliver Soong
    Feb 23, 2011 at 11:21 pm
    Feb 25, 2011 at 1:08 am
  • Robin Hankin's post reminded me to post about the following recent addition to 'Writing R Extensions', in the section on 'Submitting a package to CRAN' Ensure that the package sources are not ...
    Prof Brian RipleyProf Brian Ripley
    Feb 13, 2011 at 12:30 pm
    Feb 15, 2011 at 4:27 pm
  • Dear all, Is there a way to force R CMD INSTALL to ignore ~/.Rprofile and similar? I presume it sources these startup files for a reason, but I've found that it can cause confusion or problems. In ...
    Jon ClaydenJon Clayden
    Feb 16, 2011 at 4:25 pm
    Feb 21, 2011 at 12:25 am
  • Hi, I have a very large data file(GB) from which I only want to extract one column to draw histogram. This would be done several times, so I would like to ask if there is anyway to plot this using R ...
    Hang PHANHang PHAN
    Feb 14, 2011 at 5:40 pm
    Feb 14, 2011 at 8:14 pm
  • Hello I am trying to get one of my packages to be less than 5Mb in size, and it is currently 72Mb installed. It is big because the single vignette includes half a dozen very large PDF images. The PDF ...
    Robin hankinRobin hankin
    Feb 12, 2011 at 9:54 pm
    Feb 13, 2011 at 3:12 am
  • Hi Mr Tierney, I have noticed an error message from R 1.12.x's CMD check for a while (apparently prof Ripley completely rewrote CMD check in R 1.12+) e.g. ...
    Hin-Tak LeungHin-Tak Leung
    Feb 3, 2011 at 10:26 am
    Feb 8, 2011 at 6:24 pm
  • Hi all, Is there any relationship between save and serialize? Do they use the same algorithm? Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University ...
    Hadley WickhamHadley Wickham
    Feb 7, 2011 at 9:33 pm
    Feb 8, 2011 at 12:21 am
  • The following is 'semicolon.Rnw' (I have omitted three blank lines at the start) With keep.sourceúLSE, the commands are split onto separate lines, and there is no repetition. John Maindonald email ...
    John MaindonaldJohn Maindonald
    Feb 4, 2011 at 12:09 am
    Feb 5, 2011 at 9:02 pm
  • Hi, I put below Rblas.dll(GotoBLAS2 for Win64). http://prs.ism.ac.jp/~nakama/SurviveGotoBLAS2/binary/windows/x64/ please choose the core-name of your CPU. The recognition of the CPU of DYNAMIC_ARCH ...
    Ei-ji NakamaEi-ji Nakama
    Feb 10, 2011 at 3:20 am
    Apr 1, 2011 at 2:27 am
  • It would be nice if the 00check.log file also included this part of the output: Running ?bladder.R? Comparing ?bladder.Rout? to ?bladder.Rout.save? ... OK Running ?book1.R? Comparing ?book1.Rout? to ...
    Terry TherneauTerry Therneau
    Feb 25, 2011 at 6:24 pm
    Mar 2, 2011 at 5:18 pm
  • The link to http://cran.r-project.org/bin/macosx/R-2.12.1.pkg on the CRAN page http://cran.r-project.org/bin/macosx/ is broken. Also, the email address for the webmaster is null (which is why I'm ...
    Max KuhnMax Kuhn
    Feb 28, 2011 at 8:22 pm
    Mar 1, 2011 at 1:14 am
  • Dear R developers: When i run "make check" in R-patched_2011-02-12 and R-devel_2011-02-22 on a specific machine, the test fails and the file tests/Examples/base-Ex.Rout.fail ends with Error in ...
    Petr SavickyPetr Savicky
    Feb 22, 2011 at 10:42 am
    Feb 22, 2011 at 4:40 pm
  • Hi, everybody I have an account on Dreamhost.com and when I renewed it recently, their message said my usage of storage and bandwidth had been reasonably low. In an idle moment about 3 weeks ago, I ...
    Paul JohnsonPaul Johnson
    Feb 19, 2011 at 4:00 am
    Feb 19, 2011 at 6:41 pm
  • Should one expect minor numerical differences between 64bit and 32bit R on Windows? Hunting around the lists I've not been able to find a definitive answer yet. Seems plausible using different ...
    Graham WilliamsGraham Williams
    Feb 10, 2011 at 11:37 am
    Feb 10, 2011 at 3:12 pm
  • Hi list, I tried to install MCMCpack to R-2.12.0, got the following error, CC -m64 -library=stlport4 -I/apps/sparcv9/R-2.12.0/lib/R/include -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DHAVE_TRUNC ...
    Jun ZhangJun Zhang
    Feb 9, 2011 at 10:57 pm
    Feb 10, 2011 at 10:01 am
  • Hello, This is mostly to developers, but in case I missed something in my literature search, I am sending this to the broader audience. - Are there any plans in the works to make "time" classes a bit ...
    Mike WilliamsonMike Williamson
    Feb 8, 2011 at 8:24 pm
    Feb 8, 2011 at 10:31 pm
  • Hello, All: How can I obtain the location of an example data file in a package during "R CMD check"? I want to include sample raw data files in a package and have them read by a function in the ...
    Spencer GravesSpencer Graves
    Feb 5, 2011 at 1:57 am
    Feb 5, 2011 at 9:38 am
  • Hello, I'm trying to access an object, given only its name as a symbol. I cannot figure out how to proceed. Suppose I call substitute( ) on the expression 'x + 2': num 2 Suppose that x is S4 object, ...
    Patrick LeyshockPatrick Leyshock
    Feb 4, 2011 at 7:37 pm
    Feb 4, 2011 at 7:53 pm
  • [1] "1970-01-02 00:59:59 CET" Cheers -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel ...
    Joris MeysJoris Meys
    Feb 4, 2011 at 3:21 pm
    Feb 4, 2011 at 3:29 pm
  • Hi, I'm trying to create a package that contains reference class definitions from which users can create reference objects, but there seems to be something awry. My toy example creates an empty ...
    Jeffrey HornerJeffrey Horner
    Feb 3, 2011 at 3:25 am
    Feb 4, 2011 at 12:48 am
  • Hi all. I started looking at Rcpp, which looks pretty great, actually. At the moment just trying to compile a module to get a feel how it all works without fully understanding how all the pieces fit ...
    Andre ZegeAndre Zege
    Feb 17, 2011 at 6:29 pm
    Mar 3, 2011 at 1:59 am
  • Hi, When 'x' is a vector of doubles, it's not clear how 'factor(x)' compares its values in order to determine the levels. For example, here all the values in 'x' are "conceptually" the same: x <- ...
    Hervé PagèsHervé Pagès
    Feb 23, 2011 at 7:55 pm
    Feb 23, 2011 at 8:17 pm
  • This question was adsked on R-help-es, and got no responses there. the OP asked for help pages in english and spanish. Any ideas how this should be done? I guess there really should be a solution for ...
    Kjetil HalvorsenKjetil Halvorsen
    Feb 22, 2011 at 7:36 pm
    Feb 22, 2011 at 8:42 pm
  • This arose when working on an addition to coxph, which has the features that the X matrix never has an intercept column, and we remove strata() terms before computing an X matrix. The surprise: when ...
    Terry TherneauTerry Therneau
    Feb 21, 2011 at 7:31 pm
    Feb 22, 2011 at 5:25 pm
  • Dear List, With the R 2.12.0 addition of table methods for points(), dotchart() struggles with tables. I found several possible solutions, but it is beyond my skill to decide what is "best". Here is ...
    Joshua WileyJoshua Wiley
    Feb 1, 2011 at 7:00 pm
    Feb 20, 2011 at 7:34 am
  • On the local machine the command R11 CMD Rd2pdf survfit.Rd works fine. R12 CMD Rd2pdf survfit.Rd fails with the message below. Converting Rd files to LaTeX ... survfit.Rd Creating pdf output from ...
    Terry TherneauTerry Therneau
    Feb 17, 2011 at 5:07 pm
    Feb 17, 2011 at 6:04 pm
  • Dear all, If I load a package which creates reference classes whilst another such package is also loaded, I get a warning about masking of the ".requireCachedGenerics" variable. (FWIW, both packages ...
    Jon ClaydenJon Clayden
    Feb 15, 2011 at 5:45 pm
    Feb 15, 2011 at 10:26 pm
  • Dear all, In an attempt to draw fill patterns in grid graphics, I have encountered a behavior of grobX that I cannot understand from the documentation. Consider this, library(grid) ## gTree g1 <- ...
    Baptiste auguieBaptiste auguie
    Feb 15, 2011 at 8:42 am
    Feb 15, 2011 at 7:53 pm
  • FYI, I'm sure the following is a temporary issue, but in case it slips through, I want to raise it here. On Windows 7 64-bit, running Rcmd check on R devel gives: * using R version 2.13.0 Under ...
    Henrik BengtssonHenrik Bengtsson
    Feb 12, 2011 at 9:57 pm
    Feb 15, 2011 at 5:43 pm
  • Hello list, I've been working on a package of my own. It works fine on the 32bit linux machines that I've tested it on. Someone using 64bit ubuntu wanted to try it, and surprising segfaults ...
    Ryan KingRyan King
    Feb 11, 2011 at 9:29 pm
    Feb 11, 2011 at 10:03 pm
  • Hi, I am currently doing logistic regression analyses and I am trying to get confidence intervals for my partial logistic regression coefficients. Supposing I am right in assuming that the formula to ...
    Kino AguilarKino Aguilar
    Feb 11, 2011 at 6:25 pm
    Feb 11, 2011 at 7:04 pm
  • Dear R developers, I plan to upload a first version of my R package RnavGraph to the R CRAN server in a week or two. However I'm still struggling with an image resizing function written in C as a tcl ...
    Adrian WaddellAdrian Waddell
    Feb 8, 2011 at 6:06 pm
    Feb 8, 2011 at 9:58 pm
  • I was looking for all the glm-related 'family' functions in stats using the following predicate that returns TRUE for any function whose first argument is called "link". is.family <- function(object) ...
    William DunlapWilliam Dunlap
    Feb 7, 2011 at 7:56 pm
    Feb 7, 2011 at 9:08 pm
  • Dear all, There seems to be a problem with named chunks in Sweave with the version of R under development (downloaded yesterday). When I sweave the file toto.Rnw described at the end of this mail ...
    Clément CalengeClément Calenge
    Feb 7, 2011 at 12:36 pm
    Feb 7, 2011 at 3:11 pm
  • To me it seems like writeBin() writes one char/byte more than expected. As the numbering starts with 0 the position should be 8 and not 9 after reading. There were two older threads which look very ...
    Christian RuckertChristian Ruckert
    Feb 4, 2011 at 10:35 am
    Feb 4, 2011 at 1:52 pm
  • Hello, I'm trying to track down the cause of some extreme memory usage and I've been using Dirk Eddelbuettel's lsos() function he posted on stack overflow. There is a large difference between R's RAM ...
    Dario StrbenacDario Strbenac
    Feb 2, 2011 at 2:00 am
    Feb 2, 2011 at 5:00 am
  • I get this (with R-2.12 and R-2.13, didn't try with earlier versions): [1] NaN I get the same thing with min(). The fact that the result of 'max(x)' or 'min(x)' depends on the order of the elements ...
    Hervé PagèsHervé Pagès
    Feb 24, 2011 at 1:01 am
    Feb 27, 2011 at 9:07 am
Feb 2011
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Prof Brian Ripley: 34 posts Simon Urbanek: 26 posts Ben Bolker: 15 posts Duncan Murdoch: 13 posts Henrik Bengtsson: 13 posts Hadley Wickham: 10 posts Paul Murrell: 9 posts Martin Maechler: 8 posts Petr Savicky: 8 posts Dirk Eddelbuettel: 7 posts Gabor Grothendieck: 7 posts Joris Meys: 7 posts Jason Rudy: 6 posts Rainer Hurling: 6 posts Claudia Beleites: 5 posts Dominick Samperi: 5 posts GONG-YI LIAO: 5 posts Robin hankin: 5 posts Baptiste auguie: 4 posts Dario Strbenac: 4 posts
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