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  • I have just started looking at R, and are getting more and more irritated at myself for not having done that before. However, one of the things I have not found in the documentation is some way of ...
    Tom Backer JohnsenTom Backer Johnsen
    Feb 9, 2006 at 2:41 pm
    Feb 15, 2006 at 7:36 pm
  • I've recently installed Ubuntu 5.10 on a desktop and need R installed, however, even after uncommenting the repos associated with universe, backports and multiverse, the packages available for Ubuntu ...
    Clint HarshawClint Harshaw
    Feb 16, 2006 at 4:56 pm
    Feb 18, 2006 at 4:54 pm
  • I declared the environment of the function myfun to be NULL as follows: environment(myfun) <- NULL Later on I called that myfun and got an error message because the function index() in the zoo ...
    Fernando SaldanhaFernando Saldanha
    Feb 2, 2006 at 3:56 pm
    Feb 3, 2006 at 1:09 pm
  • [resent, plus small addition; I do not understand why gmail sent a weird charset.] Dear R wizards: I would love to write a general function that matches the slope of a plotted line in an xy-plot at a ...
    Ivo welchIvo welch
    Feb 4, 2006 at 8:50 pm
    Feb 11, 2006 at 11:17 pm
  • There has been an incredible number of responses in a short time, with a number of different suggestions. With hindsight, I must admit I have not been quite clear, so additional (somewhat lengthy) ...
    Tom Backer JohnsenTom Backer Johnsen
    Feb 9, 2006 at 9:37 pm
    Feb 11, 2006 at 9:40 am
  • I am changing the title because this is really about the history of anova, and about strata in analysis of variance. As this kind of question has been arising very frequently, an extended comment may ...
    John MaindonaldJohn Maindonald
    Feb 16, 2006 at 1:04 am
    Feb 28, 2006 at 4:26 pm
  • HI all, How to clear the screen in R-console? Thanks a lot@!
    MichaelMichael
    Feb 16, 2006 at 10:33 am
    Feb 19, 2006 at 6:38 pm
  • I am not an R expert, but I think the R idea of this task is to work with a data frame (where you make a and b are columns), and then to iterate over the rows. data <- read.table( textConnection( "a ...
    Ivo welchIvo welch
    Feb 6, 2006 at 8:06 pm
    Feb 9, 2006 at 4:43 pm
  • Hello! I would like to get MLE for parameter lambda of Poisson distribution. I can use fitdistr() for this. After looking a bit into the code of this function I can see that value for lambda and its ...
    Gregor GorjancGregor Gorjanc
    Feb 10, 2006 at 12:35 pm
    Oct 28, 2009 at 1:52 pm
  • I am making some tentative steps into using Linux (Mandriva at the moment) and notice that not all the Linux binaries on CRAN are the latest release. As R (plus Grass) will be key programs for me on ...
    Graham SmithGraham Smith
    Feb 19, 2006 at 3:59 pm
    Feb 21, 2006 at 12:35 am
  • Dear R People: I'm using R in a time series class. This class is being broadcast live to 2 remote sites via closed circuit TV. My people at the remote sites are having a terrible time seeing the ...
    Erin HodgessErin Hodgess
    Feb 14, 2006 at 6:46 am
    Feb 15, 2006 at 7:08 pm
  • I have a dataframe called "data" with 5 records (in rows) each of which has been scored on each of many variables (in columns). Five of the variables are named var1, var2, var3, var4, var5 using ...
    Mtb954Mtb954
    Feb 21, 2006 at 12:41 am
    Feb 24, 2006 at 1:51 pm
  • This is the code: x<-matrix(rnorm(20),5) y<-list() for (i in seq(nrow(x))) y[[i]]<-t(x[i,,drop=F])%*%x[i,,drop=F] y[[1]]+y[[2]]+y[[3]]+y[[4]]+y[[5]] How can I do it without using for loops? Thank you ...
    RongguiRonggui
    Feb 28, 2006 at 1:18 pm
    Mar 8, 2006 at 5:50 pm
  • Dear All, I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both ...
    Abd Rahman KassimAbd Rahman Kassim
    Feb 13, 2006 at 4:12 am
    Feb 13, 2006 at 9:25 pm
  • Hi R users This looks a simple question Is there any difference between between rnorm(1000,0,1) and running rnorm(500,0,1) twice in terms of outcome ? TM
    Taka MatzmotoTaka Matzmoto
    Feb 8, 2006 at 3:21 am
    Feb 8, 2006 at 3:34 pm
  • Hi all, How do I visualize a contour of a tri-variate normal distribution? I just like to see the ellipsoid very much. I hope there is a easy way or existing method in R. Thank you a lot! Michael.
    MichaelMichael
    Feb 2, 2006 at 8:39 am
    Feb 3, 2006 at 5:35 pm
  • Hi I did a google search on this and came up with nothing. OK, in the latest release of R for windows, I want to change the gui to SDI mode. Edit - GUI preferences Choose SDI Apply I get the message ...
    michael watson (IAH-C)michael watson (IAH-C)
    Feb 23, 2006 at 1:33 pm
    Feb 23, 2006 at 4:54 pm
  • Hello, I am a very new user of R. I've spent several hours trying to import data, so I feel okay asking the list for help. I had an Excel file, then I turned it into a "csv" file, as instructed by ...
    Carl KlarnerCarl Klarner
    Feb 21, 2006 at 1:52 pm
    Feb 22, 2006 at 3:24 pm
  • In R 2.2.0 under Windows, I want to be able to give it a filename such as "myFile.txt" without the quotes. But actually I mean: C:\Documents and Settings\Tom\My Documents\qpaper7\R Project Started 19 ...
    Thomas L JonesThomas L Jones
    Feb 22, 2006 at 5:31 am
    Feb 22, 2006 at 2:40 pm
  • Dear listers, I am trying to fit a model using nlsList() using alternately a SSfol() selfstart function or its developped equivalent formulae. This preliminary trial works well ...
    Patrick GiraudouxPatrick Giraudoux
    Feb 12, 2006 at 7:44 am
    Feb 17, 2006 at 6:25 pm
  • I'm sure I'm being stupid so flame away... R2.2.1 on Windoze (boohoo) latest updates of packages. I'm exploring a dataset (land) with three variables looking at an narrowly unbalanced two group ...
    Chris EvansChris Evans
    Feb 6, 2006 at 10:29 pm
    Feb 11, 2006 at 7:05 pm
  • Dear all, I try to compute some piece of my R code in C. My problem is about matrix. My code in R is the following: ============================================= ...
    DepireDepire
    Feb 2, 2006 at 2:11 pm
    Feb 3, 2006 at 3:15 pm
  • Dear list members: I have the following data: group <- rep(rep(1:2, c(5,5)), 3) time <- rep(1:3, rep(10,3)) subject <- rep(1:10, 3) p.pa <- c(92, 44, 49, 52, 41, 34, 32, 65, 47, 58, 94, 82, 48, 60, ...
    Christian GoldChristian Gold
    Feb 27, 2006 at 3:15 pm
    Mar 2, 2006 at 11:04 am
  • Hi all, Could anybody recommend some easy-to-understand and example based notes/tutorials on how to use cubic splines to do filtering on multi-dimension data? I am confused by the 1-dimensional case, ...
    MichaelMichael
    Feb 27, 2006 at 10:32 am
    Feb 28, 2006 at 9:19 am
  • Dear All, I would like to make partial sums (or means or any other function) of the values in intervals along a sequence (spatial transect) where groups are defined. For instance ...
    Patrick GiraudouxPatrick Giraudoux
    Feb 26, 2006 at 1:24 pm
    Feb 26, 2006 at 3:04 pm
  • Hello, I have a very simple question about "2 barplots in the same graph". It seems quite easy, but I searched google for long time, haven't find solution. For example, I want one graph like ...
    Jia dingJia ding
    Feb 22, 2006 at 1:31 pm
    Feb 24, 2006 at 11:58 am
  • I am analyzing some data obtained after measuring some parameters at different times in samples obtained from many subjects. The model is quite simple: aov(parameter ~ Time + Error(Subject/Time)) Now ...
    Felipe Martínez-PastorFelipe Martínez-Pastor
    Feb 15, 2006 at 12:39 pm
    Feb 16, 2006 at 10:27 am
  • I have a file named "test.csv" with the following 3 lines: %y-%m-%d;VALUE 1999-01-01;100 2000-12-31;999 delivers: X.y..m..d VALUE 1 1999-01-01 100 2 2000-12-31 999 I would like to see the following ...
    Diethelm WuertzDiethelm Wuertz
    Feb 14, 2006 at 1:04 am
    Feb 14, 2006 at 7:34 pm
  • the following code apprantely, for some grand old reason, induces a syntax error: if (seq[i] = "A") m <- trans[1,] where seq is a vector and trans is a matrix. I cannot for the life of me see why ...
    Norman GoodacreNorman Goodacre
    Feb 6, 2006 at 6:22 am
    Feb 13, 2006 at 4:51 pm
  • I want to write some text in a corner of my plot. Is it possible to get the xlim and ylim of an open window? Or is there anything similar like legend(x="bottomright", inset=0.01,legend=...) for ...
    Thomas SteinerThomas Steiner
    Feb 9, 2006 at 4:18 pm
    Feb 10, 2006 at 2:38 pm
  • Hi R users I like to create a ASCII type file using cat() and paste() x <- round(runif(30),3) cat("vector =( ", paste(x,sep=""), " )\n", file = "vector.dat",sep=",") when I open vector.dat it was a ...
    Taka MatzmotoTaka Matzmoto
    Feb 9, 2006 at 7:26 am
    Feb 10, 2006 at 12:29 am
  • R-help -- I built R-2.2.1 in my own directory on a sun (solaris). Now I would like the sysadmin to move the contents to /usr/local/lib and place the binary in /usr/local/bin. No problem. However, the ...
    Daniel A. PowersDaniel A. Powers
    Feb 2, 2006 at 8:04 pm
    Feb 4, 2006 at 2:58 am
  • Hi all, I am using the "svm" command in the e1071 package. Does it have an automatic way of setting the "cost" parameter? I changed a few values for the "cost" parameter but I hope there is a ...
    MichaelMichael
    Feb 28, 2006 at 9:14 am
    Mar 1, 2006 at 7:14 pm
  • Hello list, I am dealing with a noisy function (gradient,hessian not available) with simple boundary constraints (x_i 0). I've tried constrOptim() using nelder mead to minimize it but it is way too ...
    Weijie CaiWeijie Cai
    Feb 28, 2006 at 4:48 pm
    Feb 28, 2006 at 9:14 pm
  • I want to get the logLik to calculate McFadden.R2 ,ML.R2 and Cragg.Uhler.R2, but the value from multinom does not have logLik.So my quetion is : is logLik meaningful to multinomial logistic model ...
    RongguiRonggui
    Feb 22, 2006 at 12:36 pm
    Feb 24, 2006 at 10:29 am
  • Hi. I have a factor and I want to extract just those elements that appear exactly once. How to do this? Toy example follows. [1] oak oak oak oak oak ash elm beech beech beech beech Levels: ash beech ...
    Robin HankinRobin Hankin
    Feb 22, 2006 at 9:11 am
    Feb 22, 2006 at 12:57 pm
  • Dear R People: Here is yet another strange problem. I'm using R in one of my classes. However, the computer lab has something called "Deep Freeze" and the students cannot save anything to the hard ...
    Erin HodgessErin Hodgess
    Feb 21, 2006 at 1:07 am
    Feb 21, 2006 at 5:25 pm
  • Dear Lister, I have a question about variable selection for regression. if the IV is not significantly related to DV in the bivariate analysis, does it make sense to include this IV into the full ...
    Wensui LiuWensui Liu
    Feb 18, 2006 at 4:06 pm
    Feb 18, 2006 at 10:22 pm
  • Hi! I have a problem of finding a specific value in a column. For example, I have a matrix with say 2 columns X Y 1 -2.0341602 9.036689e-05 2 -1.4287230 1.807338e-04 3 -1.1194402 2.711007e-04 4 ...
    Ita Cirovic-DonevIta Cirovic-Donev
    Feb 13, 2006 at 12:30 pm
    Feb 16, 2006 at 3:46 pm
  • I have a dataframe with a column, say "x" consisting of values, each value appearing different times, e.g. x: 1,1,1,1,2,2,4,4,4,9,10,10,10,10,10 ... and a vector, including e.g.: y: 2,9,10,... I need ...
    Bernhard BaumgartnerBernhard Baumgartner
    Feb 8, 2006 at 2:21 pm
    Feb 8, 2006 at 3:19 pm
  • Hi, Could you help me to install the rgl package on Solaris 10 x86? I tried and got the following error messages. When I compiled my R as 64bit, I used the SUN ProW compilers. However, gcc seems to ...
    Dongseok ChoiDongseok Choi
    Feb 3, 2006 at 11:37 pm
    Feb 5, 2006 at 5:03 pm
  • Hi R users I wrote a function that generates some character strings. generate.index<-function(n.item){ for (i in 1:n.item) { for (j in ((i+1):n.item)) { ...
    Taka MatzmotoTaka Matzmoto
    Feb 4, 2006 at 11:46 pm
    Feb 5, 2006 at 8:22 am
  • Hey eveyone! I hope someone can help wiht this question. I have a matirux of all zeros and ones and I would like to indentify all unique patterns in the rows andthe number of times the pattern ...
    Elizabeth LawsonElizabeth Lawson
    Feb 1, 2006 at 2:43 pm
    Feb 2, 2006 at 1:31 pm
  • Hello; I'm now using mainly R for windows, mainly because I'm writing a tcl/Tk interface for some people, and I've got two questions. I'm an absolute beginner with tctk or tcktk use under the R GUI ...
    Javier Garcia-PintadoJavier Garcia-Pintado
    Feb 24, 2006 at 10:00 am
    Mar 4, 2006 at 1:59 pm
  • Dear List, Would anyone know how to perform prepared queries with ROBC ? I had a shot with some of the internal (non-exported) functions of the package but ended up with a segfault, so I prefer ...
    Laurent GautierLaurent Gautier
    Feb 27, 2006 at 2:38 pm
    Mar 2, 2006 at 4:35 pm
  • BACKGROUND: I use SAS on a daily basis and one of its most powerful features in a production environment is the use of LIBNAME and FILEREF statements, e.g.: PROC PRINTTO LOG = "&LOGDIR.\data ...
    Greg TarpinianGreg Tarpinian
    Feb 27, 2006 at 8:12 pm
    Feb 28, 2006 at 6:36 pm
  • Hi, Given a matrix like (z <- matrix(c( 1, 1, NA, NA, NA, NA, 1, NA, 1, NA, 1, NA, NA, 1, 1, 1, NA, NA), ncol = 3)) [,1] [,2] [,3] [1,] 1 1 NA [2,] 1 NA 1 [3,] NA 1 1 [4,] NA NA 1 [5,] NA 1 NA [6,] ...
    John GavinJohn Gavin
    Feb 27, 2006 at 7:33 pm
    Feb 28, 2006 at 11:10 am
  • Hello, I just started using the GNU R. I am having trouble plotting my data. I am tryin to plot the following data: TIMESTAMP LOGIN-TIME (hh:mm:ss) (s) 23:55:03 0.990972 23:55:03 0.990972 23:50:04 ...
    Sangeetha SwaminathanSangeetha Swaminathan
    Feb 20, 2006 at 4:39 pm
    Feb 25, 2006 at 3:45 pm
  • Hello R-Experts, Currently I'm using "RBloomberg" package in R-2.2.1 in Windows machine ( XP). When I'm running one specific example using blpGetData given in help file I'm getting the following ...
    Sumanta BasakSumanta Basak
    Feb 22, 2006 at 12:51 pm
    Feb 24, 2006 at 7:50 am
  • Hi All, What is the R function for computing multinomial distribution, e.g. f(2,1,3; 2/9, 1/6, 11/18, 6)? That is, a total of 6 trials, event 1's p1=2/9, x1=2, event 2's p2=1/6, x2=1, and event 3's ...
    Li,Qinghong,ST.LOUIS,Molecular BiologyLi,Qinghong,ST.LOUIS,Molecular Biology
    Feb 22, 2006 at 10:43 pm
    Feb 23, 2006 at 12:14 am
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606 users for February 2006

Prof Brian Ripley: 120 posts Gabor Grothendieck: 84 posts Peter Dalgaard: 50 posts Duncan Murdoch: 45 posts Spencer Graves: 41 posts Uwe Ligges: 40 posts Liaw, Andy: 33 posts Marc Schwartz (via MN): 24 posts Michael: 23 posts Petr Pikal: 22 posts Adaikalavan Ramasamy: 20 posts Berton Gunter: 19 posts Roger Bivand: 19 posts Chuck Cleland: 17 posts Deepayan Sarkar: 16 posts John Fox: 16 posts Taka Matzmoto: 16 posts Thomas Lumley: 16 posts Kjetil Brinchmann Halvorsen: 14 posts Sundar Dorai-Raj: 14 posts
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