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504 discussions - 1,649 posts

  • I have been trying to determine the size of the R user base, and was asked to share my findings with this mailing list. Although I still don't have any definite estimate of this number, I do have ...
    Kevin S. Van HornKevin S. Van Horn
    Apr 19, 2004 at 6:12 pm
    Apr 21, 2004 at 6:03 pm
  • I installed R project 1.9.0 on Windows XP. The installation went well. Then, I rebooted. Next, I clicked the icon under Programs in the Start menu and received this error, "Fatal Error: Invalid ...
    Joann WilliamsonJoann Williamson
    Apr 20, 2004 at 3:41 pm
    Apr 24, 2004 at 11:53 pm
  • Dear R-help, I was bitten by the behavior of all() when given logical(0): It is TRUE! (And any(logical(0)) is FALSE.) Wouldn't it be better to return logical(0) in both cases? The problem surfaced ...
    Liaw, AndyLiaw, Andy
    Apr 15, 2004 at 2:40 pm
    Apr 16, 2004 at 4:52 pm
  • Hello, Is there a way to get complex sample variances in the survey package on summary statistics other than means? If not, can they be added to a future version? It would be be great to have them on ...
    Fred RohdeFred Rohde
    Apr 12, 2004 at 8:49 pm
    Apr 15, 2004 at 9:36 pm
  • Hallo all somebody knows if exist a command who makes the opposite of what "diff" command do? I'he to write code? thanks Michele
    Michele luxMichele lux
    Apr 13, 2004 at 4:57 pm
    Apr 29, 2004 at 1:55 am
  • Could anyone advise me how to allocate 1.5Gbyte memory for R on a Dell laptop running XP professional with 2G memory? I have tried "C:\Program Files\R\rw1081\bin\Rgui.exe" --max-vsize=1400M but I ...
    Yi-Xiong Sean ZhouYi-Xiong Sean Zhou
    Apr 3, 2004 at 7:31 pm
    Apr 5, 2004 at 1:41 pm
  • Hello, I have R1.9.0 under Windows XP. My program plots several plots using x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ..... ...
    Yao, MinghuaYao, Minghua
    Apr 29, 2004 at 2:19 pm
    May 5, 2004 at 1:18 pm
  • Hello everyone, I would like to get some advices on using R with some really large datasets. I'm using RH9 Linux R 1.8.1 for a research with a lot of numerical data. The datasets total to around ...
    Sunny HoSunny Ho
    Apr 13, 2004 at 12:25 pm
    Apr 16, 2004 at 11:41 am
  • Some time ago, Peter Dalgaard made the wonderful suggestion to define "%+=%" <- function(a,b) {eval.parent(substitute(a <- a + b)) } Which I use (R-1.8.1) as follows: R a <- matrix(1:9,3,3) R ...
    Robin HankinRobin Hankin
    Apr 6, 2004 at 1:36 pm
    Apr 9, 2004 at 12:41 pm
  • I wrote a function which does "moving window" regressions. E.g. if there are 100 observations and the window width is 50, then I first run the regression for observations 1..50, then for 2..51, and ...
    Ajay ShahAjay Shah
    Apr 24, 2004 at 5:09 am
    May 16, 2004 at 12:28 pm
  • I apologize if this question is not completely appropriate for this list. I have been using SAS for a while and am now in the process of learning some C and R as a part of my graduate studies. All of ...
    Greg TarpinianGreg Tarpinian
    Apr 27, 2004 at 8:32 pm
    May 3, 2004 at 1:52 am
  • Dear R-helpers, I have found a slightly annoying problem when trying to plot lines on graphs. I first created my data using tapply, thus:- y1=as.vector(fit1$coef$random$id) ...
    Jonathan WilliamsJonathan Williams
    Apr 27, 2004 at 5:17 pm
    Apr 28, 2004 at 2:40 pm
  • Hi all, I have searched but to know avail. Is there a way to get a line number when a function crashes? I am doing an edit- source- run cycle. Feel free to cc me as I subscribe to the list in ...
    Webb SpragueWebb Sprague
    Apr 12, 2004 at 6:50 pm
    Apr 26, 2004 at 2:48 pm
  • Hi. I am using Windows version of R 1.8.1. Being somewhat new to survival analysis, I am trying to compare cph (Design) with coxph (survival) for use with a survival data set. I was wondering why cph ...
    Deb MontgomeryDeb Montgomery
    Apr 21, 2004 at 5:01 am
    Apr 22, 2004 at 12:15 am
  • Hello, for testing & learning purposes I create X11 device and specify layout like layout(c(1,2,3), 3, 1), so I could play with parameters and see several plots at the same time. That works fine ...
    Oleg BartunovOleg Bartunov
    Apr 1, 2004 at 11:38 am
    Apr 1, 2004 at 4:48 pm
  • Hi, The department of economics at our university (Budapest) is planning a course on numerical methods in economics. They are trying to decide which software to use for that, and I would like to ...
    Tamas PappTamas Papp
    Apr 25, 2004 at 9:08 am
    May 18, 2004 at 3:19 am
  • Hi Folks, I'm seeking confirmation of something which is probably true but which I have not managed to find in the documentation. I have a binary response y={0.1} and a variable x and have fitted a ...
    Ted HardingTed Harding
    Apr 27, 2004 at 8:08 pm
    Apr 28, 2004 at 10:54 pm
  • All, Does anyone know if there is an option I can set to turn screen-buffered output on and off with the win32 rgui? (Apart from the point and click method). I am running some simulations where it is ...
    Toby PattersonToby Patterson
    Apr 16, 2004 at 1:32 am
    Apr 19, 2004 at 4:03 pm
  • Is there some clever way of pasting results from R into Excel or Word, as tab limited format so they are easy to turn into a formatted table. Or is there some other way of doing this to avoid the ...
    Graham M SmithGraham M Smith
    Apr 11, 2004 at 2:34 pm
    Apr 12, 2004 at 4:32 pm
  • Either something is wrong with my machine or there may be a bugg. I had run R-1.8.1 two weeks ago. Since yesterday, I am getting this message:<<R for Windows GUI front-end has encountered a problem ...
    Alain YamakanaAlain Yamakana
    Apr 25, 2004 at 3:45 pm
    Apr 28, 2004 at 12:11 pm
  • Hi I've a problem with the following example: library(tcltk) .Tcl("array unset tclArray") myRarray <- matrix(1:1000, ncol ) for (i in (0:49)) for (j in (0:19)) .Tcl(paste("set tclArray(",i,",",j,") ...
    ThsudlerThsudler
    Apr 23, 2004 at 1:47 pm
    Apr 27, 2004 at 2:27 am
  • All, I've encountered the same problem as others who have posted under the same subject. I've had R-1.8.1 installed and running since it was released. Yesterday morning when I tried to start Rgui.exe ...
    Vinyard Maj William CVinyard Maj William C
    Apr 22, 2004 at 3:43 pm
    Apr 24, 2004 at 6:52 am
  • There have been a number of posts to this list by people having trouble with the HTML search engine. Often these troubles are caused by incorrect setups (user hasn't installed Java properly, or Java ...
    Damon WischikDamon Wischik
    Apr 22, 2004 at 1:43 pm
    Apr 23, 2004 at 1:39 pm
  • In some languages there is a function gensym() which returns a new unique name (in the current environment). This is quite helpful when one has to do temporary assignments. I could not find such a ...
    Erich NeuwirthErich Neuwirth
    Apr 19, 2004 at 8:00 am
    Apr 20, 2004 at 6:02 pm
  • I have the following problem. Use the same algorithm (with different parameters) to generate simulation results. I store these in variables, eg A, B, C, which I save into a file with save(A, B, C, ...
    Tamas PappTamas Papp
    Apr 20, 2004 at 1:39 pm
    Apr 28, 2004 at 12:59 pm
  • Dear all, For estimating Cobb-Douglad production Function [ Y = ALPHA * (L^(BETA1)) * (K^(BETA2)) ], i want to use nls function (without linearizing it). But how can i get initial values? ...
    WilDscOpWilDscOp
    Apr 16, 2004 at 12:25 pm
    Apr 19, 2004 at 9:01 am
  • Hi Folks, I am dealing with data which have been presented as at each x_i, mean m_i of the y-values at x_i, sd s_i of the y-values at x_i number n_i of the y-values at x_i and I want to linearly ...
    Ted HardingTed Harding
    Apr 18, 2004 at 1:27 am
    Apr 18, 2004 at 12:55 pm
  • On April 15th, Elizabeth wrote: <snip Have you tried det(x) and/or eigen(x) ? A zero determinant (within computer precision) means that the matrix does not have full rank, i.e. it does not span R4 ...
    WettenhallWettenhall
    Apr 15, 2004 at 10:52 am
    Apr 16, 2004 at 5:59 pm
  • What happens when I pass an array to a dynamically linked C routine? Is only its reference copied when an array is passed and returned? Or, is its whole content copied? In R extension manual, I found ...
    Shin, DaehyokShin, Daehyok
    Apr 12, 2004 at 12:14 am
    Apr 12, 2004 at 2:32 pm
  • My box: Slackware-current, Xfree 4.4. ERROR as follows: gcc -I. -I../../../src/include -I../../../src/include -I/usr/X11R6/include -I/usr/local/include -DHAVE_CONFIG_H -D__NO_MATH_INLINES -mieee-fp ...
    Qian KevinQian Kevin
    Apr 16, 2004 at 9:05 am
    Apr 19, 2004 at 2:15 pm
  • Hi, does anybody know of a nice test to detect trend turning points in time series? Possibly with reference? Thanks, joerg
    Joerg SchaberJoerg Schaber
    Apr 14, 2004 at 5:05 pm
    Apr 19, 2004 at 9:10 am
  • When I tried the following commands, I got a strange message. Error in xy.coords(x, y, xlabel, ylabel, log) : x and y lengths differ "The data frame, x, does not have a field named z." may be better ...
    ShinShin
    Apr 7, 2004 at 7:07 pm
    Apr 8, 2004 at 6:47 pm
  • Hi. I can quickly create a by object that selects rows from a data frame. After that, though, I don't know how to merge the rows back into a data frame that I can use. Here is an example where there ...
    Ed L CashinEd L Cashin
    Apr 8, 2004 at 12:14 am
    Apr 8, 2004 at 3:39 pm
  • hi R wizards: I think it would be a good idea for me to use basic argument checking (type, length) in function calls via an assert() like function. How do people usually do this? Should I define my ...
    Ivo welchIvo welch
    Apr 6, 2004 at 7:21 pm
    Apr 7, 2004 at 1:30 am
  • Is there any effective way to get distinct geometric plotting symbols and colors for plots involving more than 25 groups? Thanks. Dr. Marc R. Feldesman Professor and Chairman Emeritus Anthropology ...
    Marc R. FeldesmanMarc R. Feldesman
    Apr 2, 2004 at 4:40 am
    Apr 2, 2004 at 3:47 pm
  • I want to modify my Gui preferences to get rid of the MDI toolbar and status bar. [ Under Windows XP and R 1.8.1 and 1.9.0.] When I uncheck the boxes and click "apply" I am told to save the ...
    Murray JorgensenMurray Jorgensen
    Apr 24, 2004 at 5:46 am
    Apr 24, 2004 at 9:13 pm
  • Hi, I have been trying to look for documentation on making a 3D histogram in R (so a histogram on which there are several distributions are plotted), but I cannot find anything on it. Is it possible ...
    Tineke CasneufTineke Casneuf
    Apr 21, 2004 at 11:15 am
    Apr 21, 2004 at 7:15 pm
  • Dear all, I was wondering if there is any way i could do a "Grid Search" on a parameter space using R (as SAS 6.12 and higher can do it) to start the Newton-Gauss Linearization least squares method ...
    WilDscOpWilDscOp
    Apr 14, 2004 at 12:21 pm
    Apr 16, 2004 at 1:40 pm
  • Below is a makefile I wrote to download and install all available R packages from the CRAN and BioConductor package repositories. The primary advantage of using this makefile instead of R's built-in ...
    Warnes, Gregory RWarnes, Gregory R
    Apr 14, 2004 at 2:42 am
    Apr 14, 2004 at 9:19 pm
  • Dear helpers, I am trying to use the mda package downloaded from the R website, but the data set has missing values so I got an error message. Should I manually handle these missing values? I was ...
    Zhu wangZhu wang
    Apr 6, 2004 at 3:54 pm
    Apr 10, 2004 at 5:00 pm
  • Hi Everyone:-- Is it possible, within a for loop not explicitly using whole-number indexing, to find out the index value of the loop variable within the vector or list that's being looped through? ...
    Jim JavaJim Java
    Apr 6, 2004 at 10:55 pm
    Apr 7, 2004 at 1:30 pm
  • Dear R users, Biostatistics Denmark would like to annouce the availability of the new utility: sas2R --- a SAS to R parser. For almost 40 years SAS has been the primary tool for statisticians ...
    Rolf PoalisRolf Poalis
    Apr 1, 2004 at 5:19 am
    Apr 1, 2004 at 1:48 pm
  • Hai - kann mir jemand sagen, wie ich den Modalwert in R berechne?! IRgendwie finde ich den Befehl nicht.... greetz und herzlichen Dank Sonja
    Sonja DorniedenSonja Dornieden
    Apr 24, 2004 at 5:03 pm
    Aug 26, 2004 at 4:03 pm
  • Hi, I am using the Random Forest Package, and want to do an automatic rerun using only those variables that were most important in the original run. Is there anybody who has experience with this and ...
    Hui HanHui Han
    Apr 12, 2004 at 6:11 pm
    May 15, 2004 at 6:52 pm
  • Hi, I am trying to run an algorithm in a large dataset and want to speed this process up by using C/C++ functions. I have been attempting to create a dll library using Microsoft Visual C++ in Windows ...
    Ben.FloodBen.Flood
    Apr 30, 2004 at 9:15 am
    Apr 30, 2004 at 12:51 pm
  • Don't know if this is the correct place to post this question however I thought I would start here. The Fedora 1 packages are built without the option '--enable-R-shlib' turned on in the R.spec ...
    Ian WallaceIan Wallace
    Apr 27, 2004 at 9:33 pm
    Apr 29, 2004 at 6:35 am
  • Hi, I need to parse a data file (output of a measuring device) of the following format: BEGIN RECORD [first record data] RECORD [second record data] RECORD [third record data] END Line breaks can ...
    Tamas PappTamas Papp
    Apr 27, 2004 at 9:00 am
    Apr 27, 2004 at 10:35 am
  • Hi, I have two data sources. One records time in PST time zone, the other in GMT. I want to compute the difference between the two, but don't see how. Here is an example where I compute time ...
    Vadim OgranovichVadim Ogranovich
    Apr 23, 2004 at 6:30 pm
    Apr 24, 2004 at 7:08 am
  • Hi, I have run rpart to construct a regression tree. Is there any simple method to draw a nice picture of it, as it is usually done in books and paper to visualize the tree? Thank you, Christian ...
    Christian HennigChristian Hennig
    Apr 8, 2004 at 5:48 pm
    Apr 23, 2004 at 2:30 am
  • Hello, I need to call R from a java(swing) application. I manage to do it with something like : Process p = Runtime.getRuntime().exec("R --slave") OutputStreanWriter o = new ...
    Anthony FerrariAnthony Ferrari
    Apr 21, 2004 at 4:07 pm
    Apr 22, 2004 at 3:29 pm
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470 users for April 2004

Prof Brian Ripley: 115 posts Peter Dalgaard: 61 posts Liaw, Andy: 59 posts Gabor Grothendieck: 51 posts Thomas Lumley: 45 posts Duncan Murdoch: 43 posts Uwe Ligges: 43 posts Douglas Bates: 28 posts Jason Turner: 28 posts Tamas Papp: 25 posts A.J. Rossini: 23 posts Roger D. Peng: 22 posts Martin Maechler: 21 posts Ted Harding: 19 posts John Fox: 14 posts Self: 14 posts Ajay Shah: 13 posts Spencer Graves: 13 posts Sundar Dorai-Raj: 13 posts Brett Melbourne: 12 posts
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