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173 discussions - 530 posts

  • Dear R gang, Can anyone help me sort out how to append one data frame to another while adding a factor to distinguish which was the original frame? For example, I have two frames, x and y exp size 1 ...
    Michael A. MillerMichael A. Miller
    Dec 3, 2001 at 7:35 pm
    Dec 10, 2001 at 12:21 pm
  • Dear list, (I've not upgraded to R1.4 yet) I have the following $class component in a predict.qda object: [1] 12 17 8 10 4 9 5 13 14 19 20 15 6 3 7 1 23 11 18 21 16 2 22 NA Levels: 1 2 3 4 5 6 7 8 9 ...
    Agustin LoboAgustin Lobo
    Dec 20, 2001 at 10:22 am
    Jan 10, 2002 at 12:57 pm
  • Hi, all! My project today is to write a speedy colSums(), which is a function available in S-Plus to add the columns of a matrix. Here are 4 ways to do it, with the time it took (elapsed, best of 3 ...
    David BrahmDavid Brahm
    Dec 14, 2001 at 11:25 pm
    Dec 21, 2001 at 9:29 pm
  • Hmnnn... This is the third version of R I have installed and I am stumped on this one. There is some unresolved external I cannot find... /opt/SUNWspro/bin/cc -v -o R.bin CConverters.o Rdynload.o ...
    Tim HoarTim Hoar
    Dec 6, 2001 at 9:43 pm
    Dec 8, 2001 at 4:41 am
  • Hi all Humbly begging forgiveness for bothering the list with yesterday's lame--arsed question. Postscript, being a vector graphics file format, is, um, resolution independant. The problem as Peter ...
    Michael J. ManningMichael J. Manning
    Dec 10, 2001 at 9:18 pm
    Dec 20, 2001 at 8:08 pm
  • hi i want to fit a rather large model (p) with arima0. some of the resulting AR parameters are very small, in the order of their standard errors so i would like to force them to 0. how can i do ...
    Fabian MoerchenFabian Moerchen
    Dec 6, 2001 at 9:12 pm
    Dec 10, 2001 at 6:08 pm
  • Dear all I have a dataset that looks like: fr.wt site 1 4400 glen 2 235 glen 3 225 glen ' ' ' ' ' ' ' ' ' 82 550 glen 83 550 kom 84 550 kom ' ' ' ' ' ' ' ' ' 191 820 kom 192 2000 soet ' ' ' ' ' ' I ...
    Smit, A, Albertus, DrSmit, A, Albertus, Dr
    Dec 5, 2001 at 11:49 am
    Dec 7, 2001 at 11:40 am
  • I did a regression with ARMA errors using arima0 with ari<-arima0(y,order=c(2,0,2),xreg=reg1,delta=-1) or ari<-arima0(y,order=c(2,0,2),xreg=reg1) where reg1 is the matrix of the regressors and when I ...
    Pascal GrandeauPascal Grandeau
    Dec 16, 2001 at 7:07 pm
    Dec 18, 2001 at 8:49 am
  • Dear all, I m using R version 1.3.1 under linux (Red Hat). When i left my session, naturally i have the question Save workspace image? [y/n/c]? I said n because I want to remove all the contain of my ...
    Aboubakar MaitournamAboubakar Maitournam
    Dec 13, 2001 at 10:42 am
    Dec 15, 2001 at 9:36 pm
  • I have a quick question for the gang. I'm running a batch of simulations on a number of different computers, and have noticed that certain systems seem to run much more slowly than others. A rough ...
    Matthew NortonMatthew Norton
    Dec 12, 2001 at 7:51 pm
    Dec 13, 2001 at 5:41 pm
  • I see the uderscore "_" is not allowed in R. This make R a real drag when trying to use with SQL packages and c code. Why is the underscore not allowed and will it be allowed in a future release? ...
    Jeff D. HamannJeff D. Hamann
    Dec 8, 2001 at 5:53 am
    Dec 10, 2001 at 9:51 am
  • Hi, I have built a library that consists of a piece of C code and some R functions. To build it into a library that I can load using library() command, I have followed "Writing R Extensions" and made ...
    Jonathan LiJonathan Li
    Dec 5, 2001 at 2:20 am
    Dec 8, 2001 at 2:30 pm
  • Hi All, I want to fit a piecewise spline of degree 1, i.e. a spline consisting of a straight line over each piece. I downloaded the R package pspline, then I have following questions: 1. in the ...
    Gang LiangGang Liang
    Dec 5, 2001 at 6:05 am
    Dec 6, 2001 at 3:09 pm
  • I'm trying to understand better the differences between fixed and random effects by running very simple examples in the nlme package. My first attempt was to try doing a t-test in lme. This is very ...
    Jonathan BaronJonathan Baron
    Dec 3, 2001 at 11:08 am
    Dec 3, 2001 at 7:28 pm
  • I just installed R-1.4.0 on my Win2k machine from SetupR.exe. Everything seems to be fine with the base and recommended packages. However, when I install the lattice and grid packages they do not ...
    Dec 27, 2001 at 8:04 pm
    Dec 28, 2001 at 5:08 pm
  • Hi all, I've written a function that takes several filenames as arguments, does some calculations and write new files. Now I want to write a shell script (under Linux) that determines the files for ...
    Sven GarbadeSven Garbade
    Dec 6, 2001 at 3:23 pm
    Dec 6, 2001 at 5:04 pm
  • My Mail StationeryDear R- users, I have a small question on R. The other day I was using R when I decided to quit and when I was prompted with the question whether I would like to save the workspace ...
    Indrajit SenGuptaIndrajit SenGupta
    Dec 22, 2001 at 1:09 pm
    Dec 24, 2001 at 9:34 am
  • When writing tables with a large number of columns, write.table() seems to take way too much time - e.g. a table with ~80 rows and ~6000 columns takes ~30 min cpu on my 900 MHz pc. I would appreciate ...
    Cole HarrisCole Harris
    Dec 5, 2001 at 10:58 pm
    Dec 23, 2001 at 9:08 am
  • On RedHat linux 7.2, I upgraded (?) Emacs and R at the same time and now I'm getting some funny business with R and ESS. I reinstalled ESS from the tarball and re-byte-compiled. In particular, ...
    Paul E JohnsonPaul E Johnson
    Dec 13, 2001 at 5:14 pm
    Dec 20, 2001 at 3:44 am
  • I don't quite understand the difference between the two methods for performing a chi-squared test on contingency tables: summary(table()) and chisq.test() They may different results. E.g.: aa <- ...
    Juli g. pausasJuli g. pausas
    Dec 18, 2001 at 9:41 am
    Dec 18, 2001 at 1:04 pm
  • Hi R Users, I am very new to R and would like to do something quick if possible, please help! Suppose I have a data set of y versus x, how can I generate a smoothing line of y versus x (for example, ...
    Zhu, YiZhu, Yi
    Dec 17, 2001 at 5:58 pm
    Dec 18, 2001 at 9:04 am
  • Dear list, I'm trying to learn how to use nlme to be able to fit ad analyse mixed-model logistic regressions. In order to keep things simple, I started by the simplest possible model : a one ...
    Emmanuel CharpentierEmmanuel Charpentier
    Dec 14, 2001 at 3:47 pm
    Dec 14, 2001 at 5:56 pm
  • Dear R users, Sorry if this has been discussed before. I was recently looking at the MySQL site and saw that they offer various levels of paid support. The support options range from basic email ...
    Andrew C. WardAndrew C. Ward
    Dec 11, 2001 at 10:16 pm
    Dec 12, 2001 at 3:50 am
  • Are these posts available in journal form so I could get only one message a day? I really enjoy getting the lowdown on R and I'm really putting it to work and have almost stopped using that other ...
    Jeff D. HamannJeff D. Hamann
    Dec 11, 2001 at 4:55 pm
    Dec 11, 2001 at 7:26 pm
  • I'm using R 1.3.1 on a Windows NT 4.0 machine. As you might guess my machine crashes on me from time to time :-| So far, forcing a reboot via the Taskmanager has worked reasonably well: any open R ...
    Alex PlonerAlex Ploner
    Dec 10, 2001 at 2:14 pm
    Dec 11, 2001 at 3:30 pm
  • On my IRIX system (SGI compilers, gcc not installed) ./configure runs fine, but there is a problem with make (output below) that can be solved by changing one line in src/modules/lapack/Makefile. If ...
    Manfred W. BaumstarkManfred W. Baumstark
    Dec 8, 2001 at 6:52 pm
    Dec 9, 2001 at 7:03 pm
  • I am trying to source a file defining a dataset, giving the full path. (rw1031 on windows 98) Error in parse(file, n, text, prompt) : syntax error on line 6 also: Error in parse(file, n, text, ...
    Kjetil halvorsenKjetil halvorsen
    Dec 7, 2001 at 6:24 pm
    Dec 7, 2001 at 7:15 pm
  • Sorry to be posting another question, but my learning curve is starting to flatten some now. What am I missing here? [1] "Lawton---0.29" extraneous info: [1] "character" Michaell Taylor ...
    Michaell TaylorMichaell Taylor
    Dec 5, 2001 at 8:51 pm
    Dec 6, 2001 at 4:34 pm
  • Hello! Does anybody know how to change the font size of axis labels in the graphic window? I found that it is possible to change font to "bold" but labels are very tiny. Thanks in advance, Nick ...
    Nick KostrovNick Kostrov
    Dec 5, 2001 at 2:20 pm
    Dec 6, 2001 at 11:07 am
  • Dear all, I had to extracts/set elements from/in a matrix. Let say I have two vectors dim1 and dim2 of indices in the respective two dimensions of a matrix: I want to extract all the corresponding ...
    Laurent GautierLaurent Gautier
    Dec 31, 2001 at 1:28 pm
    Jan 2, 2002 at 8:01 am
  • Hello, I have a perl program which produces the input. Instead of print it to a file then let R read the file, I want to let R to read the input directly from the perl output, I am using a PERL ...
    Yiping FanYiping Fan
    Dec 27, 2001 at 8:35 pm
    Dec 28, 2001 at 8:25 am
  • I installed the new rpm from CRAN for R 1.4 for Mandrake Linux 8.1, after getting blas and libgcc from rpmfind.net. When I do update.packages() the system goes to update grid, lattice, and mgcv. I ...
    Frank E Harrell JrFrank E Harrell Jr
    Dec 23, 2001 at 7:34 pm
    Dec 24, 2001 at 5:57 am
  • Hi, I am not sure if this is a bug, so I am posting it here. I also searched the FAQ file for the readline string and did not find anything about the behavior below. I just successfully rsync'ed, ...
    Dec 19, 2001 at 11:38 pm
    Dec 20, 2001 at 9:35 am
  • I have a package that solves systems of ordinary differential equations coded as an R function (odesolve, on CRAN). The function is passed to R code, and c and Fortran code called by it uses lang4() ...
    Setzer WoodrowSetzer Woodrow
    Dec 13, 2001 at 1:49 pm
    Dec 17, 2001 at 2:34 pm
  • I've had a play with this and, due to my own short-comings, remain none the wiser. In particular, I'm not sure what value of 'spar' is consistent with the magic lambda=1/1600 for quarterly data. I ...
    Nick DavisNick Davis
    Dec 13, 2001 at 8:28 pm
    Dec 14, 2001 at 2:12 pm
  • Please can someone explain why I seem to get these contradictory results? choose(5,2) [1] 10 gamma(6)/(gamma(3)*gamma(4)) [1] 10 gamma(6)/(gamma(3)*gamma(4)) == choose(5,2) [1] TRUE # all's well so ...
    Cowpertwait, PaulCowpertwait, Paul
    Dec 13, 2001 at 10:38 pm
    Dec 14, 2001 at 6:29 am
  • Hello, I'm using R to do statistics on datasets, and now I need an f-test, which I can't find in R. Is there such a thing as an f-test. T-test seems to work fine, but .. Regards, Rik ...
    Rik BradtRik Bradt
    Dec 12, 2001 at 12:09 am
    Dec 12, 2001 at 11:44 am
  • I'm trying to use the lattice package (and have run into the message before) where I will get the following when trying to plot.... Error in clearpage() : Error: X11 cannot allocate additional ...
    Jeff D. HamannJeff D. Hamann
    Dec 9, 2001 at 5:02 pm
    Dec 10, 2001 at 1:19 pm
  • Dear all, I have written a little R program to convert images. See below. Within the loop over j (the filenames) memory consumption grows constantly. rm( ... ) inside the loop did not help. Memory ...
    Manfred W. BaumstarkManfred W. Baumstark
    Dec 7, 2001 at 6:10 pm
    Dec 8, 2001 at 5:30 pm
  • Hello! Is it possible to continue expand one command on several lines in R ? An attempt to write a=c(1990," ",1991, 1992, 1993,1994,1995,1996,1997,1998, 1999) in a file and then source('file') ...
    Nick KostrovNick Kostrov
    Dec 5, 2001 at 2:30 pm
    Dec 6, 2001 at 11:08 am
  • My Mail StationeryI have a question on plotting. Suppose I have two vectors x and y consisting of equal number of elements. Say x be the observed values of a time series and y be the fitted values. I ...
    Indrajit SenGuptaIndrajit SenGupta
    Dec 29, 2001 at 6:46 pm
    Dec 29, 2001 at 8:50 pm
  • Happy Holidays All, I'm trying to use stl() to extract a seasonal component from a time series. I believe the root cause of my problem lies in how I imported the data into R. In Excel (csv), the data ...
    Bill VedderBill Vedder
    Dec 23, 2001 at 7:40 pm
    Dec 28, 2001 at 3:45 pm
  • Somebody went away on vacation! The main site for r: http://www.R-project.org/ is just a generic index page (nothing there about R.) I was able to get info at the Austrian site, tho. Bob Davies ...
    Davies, BobDavies, Bob
    Dec 27, 2001 at 10:19 pm
    Dec 28, 2001 at 12:25 am
  • I have been using R-1.3.1-0 on Mandrake linux 8.1, and I just downloaded the R-1.4.0 RPM. However, I have problem updating because of dependency problems missing libblas.so.3 - what type of lib is ...
    Dr. Robin HsiungDr. Robin Hsiung
    Dec 27, 2001 at 6:18 am
    Dec 27, 2001 at 8:08 pm
  • I'm starting to understand fixed and random effects, but I'm puzzled a bit. Here is an example from Hays's textbook (which is great at explaining fixed vs. random effects, at least to dummies like ...
    Jonathan BaronJonathan Baron
    Dec 23, 2001 at 5:26 pm
    Dec 26, 2001 at 5:26 pm
  • Dear R users, Using the library(mgcv) and running R under MacOSX, I have fitted a generalised additive model with binomial errors in order to check the linearity of two continuous variables ap2mm and ...
    Patty SolomonPatty Solomon
    Dec 22, 2001 at 5:17 am
    Dec 24, 2001 at 4:36 pm
  • Dear R-users, When rebuilding R-base-1.4.0-1.src.rpm, it stopped and give message as follow: (Some words is Japanese) Formats: text example make[5]: ??? ?????? ...
    Susumu TANIMURA/谷村 晋Susumu TANIMURA/谷村 晋
    Dec 22, 2001 at 5:38 pm
    Dec 22, 2001 at 7:40 pm
  • Hello, I am a newbie to R. I would like to test my data for normality using the Shapiro-Wilks test. How do I go about it ? My data is in form of a table with 2 columns - colA, colB and I want to know ...
    Sukhaswami MalladiSukhaswami Malladi
    Dec 21, 2001 at 3:55 pm
    Dec 22, 2001 at 2:07 pm
  • Dear group, I am trying to work with the package ESS. It works fine with Emacs but I cannot get it to work under XEmacs. I get the following error: Symbol's function definition is void ...
    Sten WillemsenSten Willemsen
    Dec 10, 2001 at 4:13 pm
    Dec 21, 2001 at 10:18 am
  • Hi all, I've compiled R-1.4.0 on my NT box with link against ATLAS. It has passed all the Rcmd CHECK that I could run. If there's sufficient interest, I can make the SetupR.exe available (on CRAN?) ...
    Liaw, AndyLiaw, Andy
    Dec 20, 2001 at 8:21 pm
    Dec 21, 2001 at 5:03 am
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Prof Brian Ripley: 67 posts Peter Dalgaard BSA: 36 posts Thomas Lumley: 20 posts Göran Broström: 13 posts Jonathan Baron: 12 posts Mark Myatt: 10 posts Uwe Ligges: 10 posts A.J. Rossini: 7 posts Marc Schwartz: 7 posts Aboubakar Maitournam: 6 posts Brian Scholl: 6 posts David Brahm: 6 posts Jeff D. Hamann: 6 posts Kjetilh Halvorsen: 6 posts Liaw, Andy: 6 posts Manfred W. Baumstark: 6 posts Martin Maechler: 6 posts Ott Toomet: 6 posts Sven Garbade: 6 posts Douglas Bates: 5 posts
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