Grokbase Groups R r-help January 2007
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565 discussions - 1,728 posts

  • Like kile for LaTeX, Linux/KDE's kate editor is an excellent editor for R, with easy code submission to a running R process. Syntax highlighting is good. I have not been able to figure out two ...
    Frank E Harrell JrFrank E Harrell Jr
    Jan 19, 2007 at 2:30 am
    Jan 23, 2007 at 8:02 am
  • Dear All, I've read Thomas Lumley's fortune "If the answer is parse() you should usually rethink the question.". But I am not sure it that also applies (and why) to other situations (Lumley's comment ...
    Ramon Diaz-UriarteRamon Diaz-Uriarte
    Jan 5, 2007 at 6:02 pm
    Jan 17, 2007 at 9:01 pm
  • Many medical journals and publishers require that images, whether photographs or line art, be submitted as high resolution .TIFF images. One option for R users is to produce an image in one format ...
    Inman, Brant A. M.D.Inman, Brant A. M.D.
    Jan 12, 2007 at 3:33 am
    Jan 20, 2007 at 10:09 am
  • Dear All, I am using R for my research and I have two questions about it: 1) is it possible to create a loop using a string, instead of a numeric vector? I have in mind a specific problem: Suppose ...
    C RosaC Rosa
    Jan 29, 2007 at 3:06 pm
    Jan 29, 2007 at 8:01 pm
  • Hello, and Happy New Year. My default working directory is getting very cluttered. I know that I should be using a different working directory for each project (I work in Windows), but do not know ...
    Bill ShipleyBill Shipley
    Jan 4, 2007 at 2:41 pm
    Jan 5, 2007 at 8:02 am
  • Dear List, I'm building an R syntax highlighting file for GeSHi [*] for a website I am currently putting together. The syntax file needs a list of keywords to highlight. How can I generate a list of ...
    Gavin SimpsonGavin Simpson
    Jan 6, 2007 at 12:55 pm
    Jan 16, 2007 at 8:46 am
  • Hi, I'm trying to write R scripts using littler (under Debian), and was originally using the shebang line: #!/usr/bin/env r However this picks up any .RData file that happens to be lying around, ...
    John Lawrence AspdenJohn Lawrence Aspden
    Jan 8, 2007 at 11:25 am
    Jan 10, 2007 at 6:10 pm
  • Hi, I am new to R. and even though I've made my code to run and do what it needs to . It is taking forever and I can't use it like this. I was wondering if you could help me find ways to fix the code ...
    MiracetiMiraceti
    Jan 21, 2007 at 5:37 pm
    Jan 22, 2007 at 5:08 pm
  • Has anyone figured out how to create a destructor in R.oo? How I'd like to use it: I have an object which opens a connection thru RODBC (held as a private member) It would be nice if the connection ...
    Feng, Ken [CIB-EQTY]Feng, Ken [CIB-EQTY]
    Jan 17, 2007 at 11:51 pm
    Jan 18, 2007 at 1:04 pm
  • Have you used Tinn-R and what landmines await the inexperienced? I could not understand why a script that used to work stopped working. Look at these two scenarios I opened an excel spreadsheet and ...
    Farrel BuchinskyFarrel Buchinsky
    Jan 12, 2007 at 2:08 pm
    Jan 16, 2007 at 7:38 am
  • My simpleminded understanding of simple regression is that when plotting regression lines for x on y and y on x in the same plot, the lines should cross each other at the respective means. But, given ...
    Tom Backer JohnsenTom Backer Johnsen
    Jan 12, 2007 at 9:39 am
    Jan 12, 2007 at 2:06 pm
  • Dear All, I am running Windows XP, R 2.4.1, and doing an example about factor(). TEAM NAME LEVEL WORKTIME BONUS 1 batch sunan B 135 9,818 2 batch Chenqi E 121 6,050 3 batch jiangxu F 97 4,189 4 ...
    QingQing
    Jan 23, 2007 at 6:23 am
    Jan 23, 2007 at 9:20 am
  • Is there a painless way to find the names of all packages on CRAN that "Depend" on a specified package? url: www.econ.uiuc.edu/~roger Roger Koenker email rkoenker at uiuc.edu Department of Economics ...
    Roger koenkerRoger koenker
    Jan 2, 2007 at 5:20 pm
    Jan 3, 2007 at 3:30 pm
  • I am having problems with the 'if' syntax. I have an n x 4 matrix, X say. The first two columns hold x, y values and I am attempting to fill the second two columns with the quadrant in which the ...
    Richard RoweRichard Rowe
    Jan 1, 2007 at 2:35 am
    Jan 3, 2007 at 6:13 am
  • Hi, Today I came upon unexpected R behaviour. I did some modelling and the result was R object, about 28MB size (nested list, with matrixes as list elements). When I was saving the session with ...
    Vaidotas ZemlysVaidotas Zemlys
    Jan 31, 2007 at 5:03 pm
    Feb 2, 2007 at 6:48 pm
  • Dear helpeRs, I have two matrices: mat1 <- expand.grid(0:2, 0:2, 0:2) mat2 <- aa[c(19, 16, 13, 24, 8), ] where mat2 is always a subset of mat1 I need to find the corersponding row numbers in mat1 for ...
    Adrian DusaAdrian Dusa
    Jan 20, 2007 at 10:14 pm
    Jan 21, 2007 at 10:44 pm
  • Hi all, I want to write a wrapper for an analysis of variance and I face a curious problem. Here are two different wrappers: fun.1 <- function(formula) { summary(aov(formula)) } fun.2 <- ...
    Adrian DusaAdrian Dusa
    Jan 9, 2007 at 12:38 pm
    Jan 11, 2007 at 8:39 am
  • Hi all, I created environment "mytoolbox" by : mytoolbox <- new.env(parent=baseenv()) Is there anyway I put it in the search path ? If you need some background : In a project, I often write some ...
    Tong WangTong Wang
    Jan 9, 2007 at 2:09 am
    Jan 11, 2007 at 12:06 am
  • Hello list, I have encountered a problem trying to save graphs using the R-graphics menu: File|Save as. The menu suggests that files may be saved as either Metafile, Postscript, pdf, png, bmp, jpeg ...
    Karl SommerKarl Sommer
    Jan 3, 2007 at 10:30 pm
    Jan 5, 2007 at 5:16 am
  • Dear all, I'm trying to manage with user defined split function in rpart (file rpart\tests\usersplits.R in http://cran.r-project.org/src/contrib/rpart_3.1-34.tar.gz - see bottom of the email) ...
    Paolo RadaelliPaolo Radaelli
    Jan 3, 2007 at 4:56 pm
    Feb 14, 2008 at 2:33 pm
  • Dear Listers: I used cronbach{psy} to evaluate the internal consistency and some set of variables gave me alpha=-1.1003, while other, alpha=-0.2; alpha=0.89; and so on. I am interested in knowing how ...
    Weiwei ShiWeiwei Shi
    Jan 24, 2007 at 6:17 pm
    Jan 29, 2007 at 5:59 pm
  • I wanted to compare odds ratio across studies and tried to replicate the results from a study but have not been able to determine how to do this in R. The study reported a sample of 961 men, of whom ...
    Bob GreenBob Green
    Jan 26, 2007 at 9:04 am
    Jan 29, 2007 at 9:44 am
  • Dear alltogether, I want to use CGIwithR in conjunction with R2HTML. A small example called 'test.R': ##### #! /usr/bin/R invisible(capture.output(library(R2HTML))) ...
    Leo GürtlerLeo Gürtler
    Jan 26, 2007 at 1:51 am
    Jan 28, 2007 at 12:33 am
  • Hi I am new to R programming and am using subset to extract part of a data as follows names(dataset) = c("genome1","genome2","dist","score"); prunedrelatives <- subset(dataset, score < -5); However ...
    Lalitha viswanathLalitha viswanath
    Jan 25, 2007 at 5:53 pm
    Jan 26, 2007 at 8:53 pm
  • Please, how to fill the area under the curve? x <- c(1:10) y <- c(rnorm(10)) plot(x,y) lines(x,y) Thanks, Mauricio Cardeal
    Mauricio CardealMauricio Cardeal
    Jan 25, 2007 at 1:18 pm
    Jan 25, 2007 at 3:20 pm
  • Dear R Users, I request your help to optimize a loop. Given a series of observations, I want to know how many consecutive past observations are below the last one. e.g : my_series <- c(3, 4, ...
    Nicolas PruneNicolas Prune
    Jan 18, 2007 at 1:11 pm
    Jan 23, 2007 at 6:18 pm
  • Hi everyone, I am new to R, but it's really great and helped me a lot! But now I have 2 questions. It would be great, if someone can help me: 1. I want to integrate a normal distribution, given a ...
    Nils HoellerNils Hoeller
    Jan 21, 2007 at 7:27 pm
    Jan 22, 2007 at 7:38 pm
  • Hi Guys, it would be great if you could help me with a MLE problem in R. I am trying to evaluate the maximum likelihood estimates of theta = (a1, b1, a2, b2, P) which defines a mixture of a Poisson ...
    FrancogrexFrancogrex
    Jan 5, 2007 at 12:54 pm
    Jan 6, 2007 at 1:06 am
  • hi all. how can i adress a array directly. for example i wanna give array 1 other labels than array 2. How can I overcome this problem? ...this doesn't work tab <- array(1:8, c(2, 2, 2)) ...
    Downunder03Downunder03
    Jan 3, 2007 at 2:55 pm
    Jan 3, 2007 at 9:57 pm
  • The following plot is a first approximation to what I need: *********************************** mu1 <- 0 mu2 <- 5 s <- 1 x <- seq(-2.5, 7.5, length = 41) y <- seq(-2.5, 2.5, length = 41) f <- ...
    Michael KubovyMichael Kubovy
    Jan 1, 2007 at 3:10 pm
    Apr 2, 2011 at 11:09 pm
  • Hi, I am a total newbie to R. I am using R (2.4.1) on Mac OS X 10.4.8 and trying to install some packages using GUI Packages & Data/Package Installer interface... Every time I get: trying URL ...
    Nüzhet DalfesNüzhet Dalfes
    Jan 23, 2007 at 8:09 pm
    Jul 3, 2007 at 6:55 pm
  • Hi, I was wondering if someone could tell me more about this book, (if it's a good or bad one). I can't find it, as it seems that O'Reilly doesn't publish any more. Thanks, Ben -- Benoit Ballester
    Benoit BallesterBenoit Ballester
    Jan 31, 2007 at 4:33 pm
    Jun 5, 2007 at 12:27 am
  • Hello, Is there a way to convert a character to a number with out getting a warning? I have a vector that has both numbers and letters in it and I need to convert it to only numbers. At the moment ...
    KonradKonrad
    Jan 31, 2007 at 7:35 pm
    Jan 31, 2007 at 8:36 pm
  • Dear list, This should be a simple one, I just cannot see it. I need to generate a sequence of the form: 4 5 6 13 14 15 22 23 24 That is: starting with 4, make a 3 numbers sequence, jump 6, then ...
    Adrian DUSAAdrian DUSA
    Jan 30, 2007 at 2:29 pm
    Jan 30, 2007 at 3:38 pm
  • Hello there, I am working on an extremely unbalanced two class classification problems. I wanna use "classwt" with "down sampling" together. By checking the rfNews() in R, it looks that classwt is ...
    Betty HealthBetty Health
    Jan 28, 2007 at 6:13 pm
    Jan 30, 2007 at 4:59 am
  • hi i have a dataframe "a" which looks like: column1, column2, column3 10,12, 0 NA, 0,1 12,NA,50 i want to replace all values in column1 to column3 which do not contain "NA" with values of vector "b" ...
    Indermaur LukasIndermaur Lukas
    Jan 24, 2007 at 7:27 pm
    Jan 25, 2007 at 2:32 pm
  • Hello, i have problem with the following code (I'm using sqlQuery function from RODBC package): eval(parse(text="g_1 <- sqlQuery(cnn_1, \"select aa from bb.[cc\\dd].ee\")")). I get the error ...
    Jakub JurdziakJakub Jurdziak
    Jan 23, 2007 at 4:29 pm
    Jan 23, 2007 at 7:39 pm
  • I am trying to read an ftable using read.ftable, but I get the following error message: Error in seek(file, where = 0) : no applicable method for "seek" In addition: Warning messages: 1: no ...
    Giovanni PetrisGiovanni Petris
    Jan 18, 2007 at 11:00 pm
    Jan 19, 2007 at 4:24 pm
  • Reading the documentation for 'apply', I understand the following is working exactly as documented: [,1] [,2] [1,] 1 4 [2,] 2 5 [3,] 3 6 [,1] [,2] [1,] 2 5 [2,] 4 7 [3,] 6 9 [,1] [,2] [,3] [1,] 2 3 4 ...
    Benjamin TynerBenjamin Tyner
    Jan 16, 2007 at 9:30 pm
    Jan 18, 2007 at 2:16 pm
  • Hello, I would like to annotate a graph with the expression 'alpha = 5%' (the alpha should be displayed as the greek letter). I tried which gives a syntax error. escaping the percent sign (\%) or ...
    Martin Keller-ResselMartin Keller-Ressel
    Jan 17, 2007 at 9:57 am
    Jan 17, 2007 at 11:00 am
  • Hi, I am planning on putting some R script in an appendix of a LaTex document. Can anyone recommend me a way of how to format it? Is there a way to keep all line breaks without having to insert \\ in ...
    Benjamin DickgiesserBenjamin Dickgiesser
    Jan 15, 2007 at 1:42 pm
    Jan 16, 2007 at 5:13 pm
  • Why will the following command not work sapply(objects(),dim) What does it say about the objects list? What does it say about the dim command? Likewise, the following also does not work all<-ls() for ...
    Farrel BuchinskyFarrel Buchinsky
    Jan 9, 2007 at 2:29 pm
    Jan 10, 2007 at 11:33 am
  • Dear R-helpers, I'm plotting geophysical data in the form of contours using "filled.contour". The display would be much more effective if the areas with negative values could be color coded by -- say ...
    Claudia TebaldiClaudia Tebaldi
    Jan 4, 2007 at 11:30 pm
    Jan 5, 2007 at 2:46 pm
  • Hy all, I'm plotting graphs using plot() function, they are on X axes POSIX dates: "POSIXt" "oldClass" "POSIXct" "POSIXlt" I can't figure out why sometimes it prints the month and days and sometimes ...
    COMTE GuillaumeCOMTE Guillaume
    Jan 4, 2007 at 9:41 pm
    Jan 5, 2007 at 2:44 pm
  • Hi, I have done an analysis using 'rpart' to construct a Classification Tree. I am wanting to retain the output in tree form so that it is easily interpretable. However, I am wanting to compare the ...
    Amy KochAmy Koch
    Jan 29, 2007 at 12:34 am
    Sep 17, 2009 at 3:16 pm
  • Dear friends, I am trying to install R-2.4.1 from source on Solaris 11 x-86. 64 bits, running on Sun Ultra-20 workstation, and using the SunStudio 11 compilers. I was able to "configure" R correctly, ...
    Octavio TourinhoOctavio Tourinho
    Jan 31, 2007 at 9:35 pm
    Feb 5, 2007 at 8:20 pm
  • Hi Folks, I just finished (the first draft of) a Wiki document to explains options for producing graphics to incorporate in MS Word. Thanks to all those who provided input, and who provided the wiki ...
    Martin Henry H. StevensMartin Henry H. Stevens
    Jan 31, 2007 at 4:56 pm
    Feb 2, 2007 at 12:39 am
  • Dear all, I have a problem that may be someone of you can help. I am a newbie and do not find how to do it in manuals. I have two arrays, for example: ar1 <- array(data=c(1:16),dim=c(4,4)) ar2 <- ...
    Federico AbascalFederico Abascal
    Jan 30, 2007 at 11:27 am
    Jan 31, 2007 at 12:18 pm
  • Hi, how can I change the plotting symbol for the groups in a trellis panel dotplot. My graph is similar to: library(trellis) dotplot(variety ~ yield | site, data = barley, groups = year, key = ...
    Tom BoonenTom Boonen
    Jan 30, 2007 at 8:47 pm
    Jan 30, 2007 at 11:52 pm
  • i have a large longitudinal data set. The number of observations for each subject is not the same across the sample. The largest number of a subject is 5 and the smallest number is 1. now i want to ...
    Gallon liGallon li
    Jan 27, 2007 at 10:34 am
    Jan 27, 2007 at 11:54 am
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Professor Brian Ripley: 118 posts Gabor Grothendieck: 68 posts Marc Schwartz: 46 posts Peter Dalgaard: 35 posts Duncan Murdoch: 31 posts Jim holtman: 28 posts Chuck Cleland: 24 posts Weiwei Shi: 24 posts Petr Pikal: 19 posts Martin Maechler: 17 posts Adrian DUSA: 16 posts Ramon Diaz-Uriarte: 16 posts Benilton Carvalho: 15 posts Dimitris Rizopoulos: 15 posts Richard M. Heiberger: 15 posts Greg Snow: 14 posts Vladimir Eremeev: 14 posts Gavin Simpson: 13 posts Shubha Vishwanath Karanth: 13 posts Uwe Ligges: 13 posts
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