Grokbase Groups R r-help March 2005
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586 discussions - 1,700 posts

  • Hi! I am new to R just 3 days in it and i apologize if my questions seem very trivial and consumed your valuable time. I am coding in perl and i stumbled upon R regarding plotting good statistical ...
    Asha JayanthiAsha Jayanthi
    Mar 30, 2005 at 6:20 am
    Apr 7, 2005 at 4:23 pm
  • Dear R experts, Did someone implemented French Curve yet? Or can anyone point me some papers that I can follow to implement it? thanks in advance for your help. Paul
    Dream homeDream home
    Mar 30, 2005 at 8:27 pm
    Apr 6, 2005 at 12:24 pm
  • hi all a simple question i want to run simulations in r. i however want the experiments to be repeated at a later time with exactly the same numbers by other users. can i set the random number seed ...
    Clark AllanClark Allan
    Mar 4, 2005 at 11:07 am
    Mar 15, 2005 at 1:40 pm
  • Dear all, I think that my question is very simple but I failed to solve it. I have a list which elements are matrices like this: [[1]] [,1] [,2] [,3] [1,] 1 3 5 [2,] 2 4 6 [[2]] [,1] [,2] [,3] [1,] 7 ...
    Vicky LandsmanVicky Landsman
    Mar 16, 2005 at 4:21 pm
    Mar 17, 2005 at 1:18 pm
  • Hi, Is there any tool to check if there is update version of a package available? I look for things alike YUM for linux? YD
    Yuandan ZhangYuandan Zhang
    Mar 23, 2005 at 5:12 am
    Apr 22, 2005 at 5:52 pm
  • Hi I produce graphics with R under linux, but my collaborators often use windows and cannot import eps pics e.g. in msword what is the standard way to get e.g. bmp's with the same quality as eps ...
    Christoph LehmannChristoph Lehmann
    Mar 22, 2005 at 10:59 am
    Mar 23, 2005 at 7:40 am
  • Hello R users! I just found out that I have 49 invitations for Gmail (gmail.google.com). I have been using it now for a while and is really nice. Don't forget 1 GB for free. I will invite those who ...
    Gorjanc GregorGorjanc Gregor
    Mar 25, 2005 at 6:31 pm
    Mar 28, 2005 at 9:18 pm
  • Dear experts, I am asking for help with a question regarding to stratified bootstrap. My dataset is a longitudinal dataset (3 measurements per person at year 1, 4 and 7) composed of multiple clinic ...
    Qian AnQian An
    Mar 25, 2005 at 10:09 pm
    Apr 7, 2005 at 6:23 pm
  • Dear all, I am trying to install the R-2.0.0-1mdk.i586.rpm <http://cran.planetmirror.com/bin/linux/mandrake/10.0/R-2.0.0-1mdk.i586.rpm file on mandrake 10.1. Since the file is, originally, meant for ...
    ChristianChristian
    Mar 14, 2005 at 6:21 pm
    Mar 17, 2005 at 11:46 am
  • Hi, I've written a function in order to plot the same graph in a postcript and in a pdf file. Unfortunately, the second graph is always empty, i.e.: plot.both <- function{myplot, filename}{ ...
    Ronny KleinRonny Klein
    Mar 9, 2005 at 1:57 pm
    Mar 10, 2005 at 8:32 am
  • R-help, I'm using 'xyplot' in lattice package which plots length frecuencies by year (10). The order I get is not logical and the 'index.cond' argument to 'xyplot' is a bit cumbersome when it comes ...
    Luis Ridao CruzLuis Ridao Cruz
    Mar 1, 2005 at 2:50 pm
    Mar 1, 2005 at 6:49 pm
  • I am currently the only use-R at my company, but they are considering buy a more powerful server and letting multiple people use it. They asked me if R supports client-server setups. I know S+ has a ...
    Roger bosRoger bos
    Mar 24, 2005 at 2:27 pm
    Mar 24, 2005 at 7:48 pm
  • AFAIK most model fitting techniques will only deal with additive errors, not multiplicative ones. You might want to try fitting: log(y-x) = a*x + e which is linear. Andy
    Liaw, AndyLiaw, Andy
    Mar 18, 2005 at 1:56 pm
    Mar 20, 2005 at 3:55 pm
  • In real world, data manipulation might take even longer time and more effort than statistical analysis and modeling. Does anyone know a good book and tutorial about data manupulation? Thank you so ...
    Wensui LiuWensui Liu
    Mar 12, 2005 at 2:08 pm
    Mar 14, 2005 at 12:42 am
  • How do we specify a contrast interaction matrix for an ANOVA model? We have a two-factor, repeated measures design, with Cue Direction (2) x Brain Hemisphere(2) Each of these has 2 levels, 'left' and ...
    Darren WeberDarren Weber
    Mar 10, 2005 at 12:03 am
    Mar 10, 2005 at 7:07 pm
  • Hi: Is there any function in R which can convert the long/lat to UTM(Universal Transverse Mercator)? There are quite a few converters on Internet. However, the interface is designed as input- output ...
    Yyan liuYyan liu
    Mar 9, 2005 at 5:20 am
    Mar 10, 2005 at 6:10 pm
  • I am trying to do the simplest thing in the world. The following works: aaa <- ifelse(aaa==5, 6, 7) But if I want to change the if...else syntax instead, it gives errors and assigns 7 to aaa. Here is ...
    Roger bosRoger bos
    Mar 7, 2005 at 3:16 pm
    Mar 7, 2005 at 5:42 pm
  • I have a fairly simple problem--I have about 80,000 values (call them y) that I am using as an empirical distribution and I want to find the p-value (never mind the multiple testing issues here, for ...
    Sean DavisSean Davis
    Mar 3, 2005 at 10:22 pm
    Mar 4, 2005 at 12:46 pm
  • Hi there, I had written a library under R 1.9.0 and now I would like to import that library under R 2.0.1 Apparently it does not work; I can install the package, but when I try to read it the error ...
    MartaMarta
    Mar 1, 2005 at 3:23 pm
    Mar 2, 2005 at 7:31 am
  • Hi, if we have a file called Rscript.R that contains the following, for example: x <- 1:100 outfile = "Rscript.Rout" sink(outfile) print(x) and then we run we get an output file called Rscript.Rout - ...
    Darren WeberDarren Weber
    Mar 18, 2005 at 9:41 pm
    Apr 9, 2005 at 10:17 am
  • here is my system memory: ronggui at 0[ronggui]$ free total used free shared buffers cached Mem: 256728 79440 177288 0 2296 36136 -/+ buffers/cache: 41008 215720 Swap: 481908 60524 421384 and i want ...
    RongguiRonggui
    Mar 30, 2005 at 10:36 am
    Mar 31, 2005 at 10:50 am
  • Dear all, I have 5 plots that I would like to include in a single figure, spread over two rows. If I use mfrow=c(2,3), and produce my plots one after the other, I will end up with three plots in the ...
    Hess, StephaneHess, Stephane
    Mar 26, 2005 at 5:44 pm
    Mar 29, 2005 at 10:59 pm
  • Dear R Folks, I know that Enrique Bengoechea ( Credit Suisse ) had posted some code snippets for importing Bloomberg historical data into R. I found them to be very useful. Has anyone succeeded in ...
    Chalasani, PrasadChalasani, Prasad
    Mar 24, 2005 at 6:14 pm
    Mar 28, 2005 at 4:13 pm
  • Hi, I have a problem:I need to use the maximum amount of memory in order to perform a very tough analysis. By purchasing the suitable computer, what's the maximum amount of memory obtainable in R? ...
    MarvenaMarvena
    Mar 21, 2005 at 4:12 pm
    Mar 22, 2005 at 8:26 am
  • Hello, Please forget me if I am asking something that is well documented. I have read documentation but there are points that are not clear for me. I am not expert in R nor Databases, but if someone ...
    De la Vega Góngora JorgeDe la Vega Góngora Jorge
    Mar 18, 2005 at 4:57 pm
    Mar 18, 2005 at 9:00 pm
  • Dear All: Could you please tell me how I can draw figure formatted like figure 4.18 of MASS (4th) with the attached data set? Thanks Zhongming Yang --------------------------------- An embedded and ...
    Zhongming YangZhongming Yang
    Mar 16, 2005 at 4:07 pm
    Mar 17, 2005 at 2:10 pm
  • I am try to cross validate some logistic regressions. cv.glm allows me to do this randomly but since I have data over a number of years and over a number of distince areas, I would like to ...
    Trevor WiensTrevor Wiens
    Mar 15, 2005 at 4:29 am
    Mar 15, 2005 at 4:43 pm
  • Hallo! I want to use the package bayesmix. Trying the examples I had no success. The reason is, I think: [1] FALSE Have read of JAGS executable (I could not find JAGS.exe in my R directory). What is ...
    Karl KnoblickKarl Knoblick
    Mar 4, 2005 at 11:14 am
    Mar 15, 2005 at 7:26 am
  • I was unsure of what suitable goodness-of-fit tests existed in R for logistic regression. After searching the R-help archive I found that using the Design models and resid, could be used to calculate ...
    Trevor WiensTrevor Wiens
    Mar 10, 2005 at 9:06 pm
    Mar 11, 2005 at 3:37 pm
  • Hi everyone, I need help. I want to have a "uniform" kind distribution. When I used sample function I got almost twice many zeros compared to other numbers. What's wrong with my command ? temp ...
    Mirage sellMirage sell
    Mar 11, 2005 at 2:54 am
    Mar 11, 2005 at 10:59 am
  • Hi, Is it possible to modify an object in the parent.env (as opposed to re-bind)? Here is what I tried: Error in eval(expr, envir, enclos) : Target of assignment expands to non-language object # On ...
    Vadim OgranovichVadim Ogranovich
    Mar 8, 2005 at 11:36 pm
    Mar 10, 2005 at 12:36 pm
  • I am using lattice to make figures as pdfs: trellis.device(device = "pdf",file = "Figure6.pdf",color = FALSE) I need to specify some blank space on the left-hand margins (the pages will be bound so ...
    Bock, MichaelBock, Michael
    Mar 9, 2005 at 7:19 pm
    Mar 10, 2005 at 1:50 am
  • Hello useRs, Is there a way to write code in R to ring a bell in Windows? Best regards, C. Joseph Lu Department of Statistics National Cheng-Kung University Tainan, Taiwan ROC ...
    Lu JosephLu Joseph
    Mar 7, 2005 at 4:31 pm
    Mar 8, 2005 at 11:51 am
  • R-packages leaps and subselect implement various methods of selecting best or good subsets of predictor variables for linear regression models, but they do not seem to be applicable to logistic ...
    Wittner, BenWittner, Ben
    Mar 2, 2005 at 11:33 am
    Mar 2, 2005 at 11:23 pm
  • Hello I would like to delete some values at random in a data frame. Does anyone know how I could do? With best regards Caroline
    Caroline TRUNTZERCaroline TRUNTZER
    Mar 1, 2005 at 2:04 pm
    Mar 1, 2005 at 3:54 pm
  • Hello, Could you please tell me how i can get an input from the user in R? C-Ming Mar 29, 2005 ---------------------------------
    Cuichang ZhaoCuichang Zhao
    Mar 30, 2005 at 6:11 am
    Mar 31, 2005 at 9:47 am
  • Trying to use R to build an interactive "slide show", to be displayed on a projector. The purpose of the presentation is to show how one could construct a simple graph using R. It is meant as a ...
    George_HeineGeorge_Heine
    Mar 29, 2005 at 8:54 pm
    Mar 30, 2005 at 2:47 am
  • I have the data similar to the following in a data frame: LastName Department Salary 1 Johnson IT 56000 2 James HR 54223 3 Howe Finance 80000 4 Jones Finance 82000 5 Norwood IT 67000 6 Benson Sales ...
    Sivakumaran RamanSivakumaran Raman
    Mar 29, 2005 at 1:15 am
    Mar 30, 2005 at 1:22 am
  • Dear R users, I have a data generated as the following, dat <- data.frame(matrix(sample(24), nrow=4)) dimnames(dat) <-list(rownames=c('g1','g2','g3','g4'), ...
    Hai LinHai Lin
    Mar 29, 2005 at 2:58 pm
    Mar 29, 2005 at 3:46 pm
  • Hello, I am estimating the following model: so2.lme<-lme(so2~1+I(alcadakm^2)+dia,data=subjectes2,na.action=na.omit) And when I try to plot the random effects of the quadratic term with respect to a ...
    Montse RueMontse Rue
    Mar 26, 2005 at 9:20 am
    Mar 26, 2005 at 9:37 pm
  • Dear experts! Is there a package that enables to create the bivariate log-normal variables? Thanks a lot, Vicky Landsman.
    Vicky LandsmanVicky Landsman
    Mar 24, 2005 at 9:01 pm
    Mar 26, 2005 at 6:58 pm
  • Hello, I use Gentoo and I can't get R 2.0.1 to compile. I used the portage system, Gentoo's source package sytem, and after it uncompresses the source to R, it says that I don't have a fortran ...
    Gabriel RossettiGabriel Rossetti
    Mar 9, 2005 at 8:09 am
    Mar 25, 2005 at 10:32 pm
  • Hi, I am working with R on 2xG5 1.8Ghz from Apple under 10.3.8 The G5 chip is 64 bits but does R run in 64 bit or 32 under OS X? How can know? I think it run in 32 bits... but not sure... anyway ...
    David RuauDavid Ruau
    Mar 23, 2005 at 5:31 pm
    Mar 25, 2005 at 2:36 am
  • Hi AlL, I ahve this problem that my objective function is discontinous in the paramaters and I need to use methods such as nelder-mead to get around this. My question is: How do i compute standard ...
    Jean EidJean Eid
    Mar 23, 2005 at 10:49 pm
    Mar 24, 2005 at 3:23 pm
  • Hi I am struggling with nested random effects and hope someone can help. I have individuals (ID) who are nested within families (FAM). I want to model an outcome variable, and take account of the ...
    Shaw, Philip (NIH/NIMH)Shaw, Philip (NIH/NIMH)
    Mar 23, 2005 at 4:58 pm
    Mar 23, 2005 at 7:04 pm
  • Hi All, Does someone have an idea of how to cleverly convert a categorical timeseries into a transition matrix? Ie, I have something like: x<- c(1,1,2,1,1,2,2,2,1,2), And I want a matrix with counts ...
    Ingmar VisserIngmar Visser
    Mar 22, 2005 at 4:20 pm
    Mar 22, 2005 at 4:51 pm
  • Dear useR again, How can I read a dataset if lines in dataset did not have same elements (have different lengths), For example: 1 2, 4, 16, 1, 1, 3, 1, 1, 15, 5, 1, 1, 14, 1, 1 2 2, 13, 5, 1, 1, 3, ...
    Xiyan LonXiyan Lon
    Mar 21, 2005 at 5:41 pm
    Mar 21, 2005 at 9:32 pm
  • Hi I want to extract all the rows in a data frame that have duplicates for a given column. I would expect this question to come up pretty often but I have researched the archives and surprisingly ...
    Tiago R MagalhaesTiago R Magalhaes
    Mar 18, 2005 at 2:11 am
    Mar 18, 2005 at 6:21 pm
  • there is a vector, like: 1, 1, 1, 2, 2, 3, 3, 4, 5, 5, I'd like a function that gives me only 1, 2, 3, 4, 5 thank you
    Terry MuTerry Mu
    Mar 17, 2005 at 5:24 pm
    Mar 17, 2005 at 5:36 pm
  • Hi all, My data genes [,1] [,2] [,3] [,4] [1,] 25 72 23 55 [2,] 34 53 41 33 [3,] 26 43 26 44 [4,] 36 64 64 22 [5,] 47 72 67 34 stu<-t.test(genes[,1:2],genes[,3:4]) [1] 0.4198002 i get 1 pvalue for ...
    Jagarlamudi, ChoudaryJagarlamudi, Choudary
    Mar 15, 2005 at 5:59 pm
    Mar 16, 2005 at 8:53 pm
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552 users for March 2005

Uwe Ligges: 85 posts Prof Brian Ripley: 61 posts Liaw, Andy: 56 posts Gabor Grothendieck: 54 posts Marc Schwartz: 40 posts Adaikalavan Ramasamy: 35 posts Peter Dalgaard: 33 posts Dimitris Rizopoulos: 29 posts Spencer Graves: 28 posts Deepayan Sarkar: 27 posts Thomas Lumley: 23 posts Duncan Murdoch: 22 posts Mulholland, Tom: 22 posts Berton Gunter: 16 posts Sundar Dorai-Raj: 15 posts Achim Zeileis: 14 posts Huntsinger, Reid: 13 posts Kjetil Brinchmann Halvorsen: 13 posts Sean Davis: 12 posts Trevor Wiens: 12 posts
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