Grokbase Groups R r-help July 2006

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598 discussions - 1,784 posts

  • I'm trying to write a simple function that does the following: [command] xify(5.2) [output] XXX.XX [command] xify(3) [output] XXX Any simple solutions (without using python/perl/unix script/...)? ...
    Bashir Saghir (Aztek Global)Bashir Saghir (Aztek Global)
    Jul 17, 2006 at 2:07 pm
    Jul 18, 2006 at 9:47 am
  • Hello All, I would like to retrieve some of the results from the lmer(...) function in library lme4. If I run a model, say fm.1 <- lmer(y ~ 1 + (1 | x), data = dog) and try names(fm.1), I get NULL ...
    A.R. CriswellA.R. Criswell
    Jul 15, 2006 at 3:22 pm
    Jul 20, 2006 at 3:31 pm
  • I would like to propose that we change the trailer on r-help messages which is currently: R-help at mailing list PLEASE do read the ...
    Gabor GrothendieckGabor Grothendieck
    Jul 16, 2006 at 4:46 pm
    Jul 17, 2006 at 4:24 pm
  • Dear R, I import data from spss into a R data.frame. On this rawdata I do some data processing (selection of observations, normalization, recoding of variables etc..). The result is stored in a new ...
    Jol, ArneJol, Arne
    Jul 12, 2006 at 4:41 pm
    Jul 18, 2006 at 2:47 am
  • Greetings! I have a few colleagues who like the idea of Sweave, but have failed to become enlightened monks of the One True Editor ( Are there any other ...
    A.J. RossiniA.J. Rossini
    Jul 5, 2006 at 8:14 am
    Jul 6, 2006 at 8:17 am
  • Hello! I work with : R : Copyright 2006, The R Foundation for Statistical Computing Version 2.3.1 (2006-06-01) On Windows XP Professional (Version 2002) SP2. At this moment I use the function "nls" ...
    Xavier BarronXavier Barron
    Jul 18, 2006 at 4:06 pm
    Apr 27, 2011 at 2:54 pm
  • Dear all, I am trying to train a randomForest using all my control data (12,000 cases, ~ 20 explanatory variables, 2 classes). Because of memory constraints, I have split my data into 7 subsets and ...
    Eleni RapsomanikiEleni Rapsomaniki
    Jul 26, 2006 at 4:57 pm
    Aug 1, 2006 at 8:32 am
  • Hi WizaRds, I'd like to overplot UK fuel consumption per quarter over the course of five years. Sounds simple enough? Unless I'm missing something, the following seems very involved for what I'm ...
    John McHenryJohn McHenry
    Jul 25, 2006 at 1:28 am
    Jul 27, 2006 at 12:53 am
  • Dear all, I am trying to find a suitable R-function for parametric proportional hazard regressions. The package survival contains the coxph() function which performs a Cox regression which leaves the ...
    Valentin DimitrovValentin Dimitrov
    Jul 7, 2006 at 3:00 pm
    Jul 10, 2006 at 2:12 pm
  • If I wish to color groups in xyplot I can do this: library(lattice) x <- 1:10 y <- cbind(x, x+1) xyplot(y ~ rep(x,2), group = col(y), col = 1:2) How do I color different points differently within a ...
    Gabor GrothendieckGabor Grothendieck
    Jul 4, 2006 at 3:42 pm
    Jul 5, 2006 at 8:37 pm
  • I am trying to use the sas.get function to bring a SAS dataset into R. After calling the sas.get function I got an error message stating that 'sas' is not a recognized internal or external command, ...
    Hamilton, CodyHamilton, Cody
    Jul 5, 2006 at 4:54 pm
    Jul 5, 2006 at 7:03 pm
  • Hello list! I would like to fit a distribution to each of the peaks in a histogram, such as this: . The peaks are identified ...
    Ulrik StervboUlrik Stervbo
    Jul 19, 2006 at 9:58 am
    Jul 20, 2006 at 5:03 pm
  • R and DDE (Dynamic Data Exchange) Dear Rusers, I run an application (not mine) which acts as a DDE server. I would like to use R to get data from this application, say once per minute, and do some ...
    Jul 17, 2006 at 4:20 pm
    Jul 19, 2006 at 3:09 pm
  • Hi, I have two further comments/questions about large datasets in R. 1. Does R's ability to handle large datasets depend on the operating system's use of virtual memory? In theory, at least, VM ...
    Marshall FeldmanMarshall Feldman
    Jul 18, 2006 at 1:20 pm
    Jul 18, 2006 at 11:19 pm
  • Dear all, I'm trying to store/extract the mean& standard error of the fixed effects parameter and the variance of the random effects parameter from "lmer" procedure from mlmre4 package developed by ...
    Prabhu bhagaPrabhu bhaga
    Jul 11, 2006 at 3:18 pm
    Jul 17, 2006 at 7:42 pm
  • Hi, I have a table of observed counts for various genetic markers. Instead of doing Fisher's exact test for each marker one at a time and recording the P value manually, is there a script to go ...
    Jenny tanJenny tan
    Jul 11, 2006 at 9:29 am
    Jul 17, 2006 at 1:51 pm
  • Evening folks: I did an install.views of finance and econometrics and between the two of them R reported 'FracSim', 'RDCOMClient', 'snow', 'VGAM', and 'segmented' as missing dependencies. Now, I've ...
    Brian LunerganBrian Lunergan
    Jul 9, 2006 at 12:53 am
    Jul 10, 2006 at 8:53 am
  • glm(S ~ -1 + Mdif, family=quasipoisson(link=identity), start=strt, sdat) gives error: strt is set to be the coefficient for a similar fit glm(S ~ -1 + I(Mdif + 1),... i.e. (Mdif + 1) is a vector ...
    Dan BebberDan Bebber
    Jul 21, 2006 at 11:35 am
    Oct 16, 2006 at 7:34 pm
  • All, I'm trying to analyze the results of a reciprocal transplant experiment using lme(). While I get the error-term right in aov(), in lme() it appears impossible to get as expected. I would be ...
    Jul 19, 2006 at 11:36 am
    Aug 23, 2006 at 11:40 am
  • I am trying to create a lattice plot and would like to later, i.e. after the plot is drawn, add a grey rectangle behind a portion of it. The following works except that the rectrangle is on top of ...
    Gabor GrothendieckGabor Grothendieck
    Jul 29, 2006 at 9:20 pm
    Aug 2, 2006 at 2:22 am
  • Using ranef() (package nlme, version 3.1-75) with an 'lme' object I can obtain random effects for intercept and slope of a certain level (say: 1) - this corresponds to (say level 1) "residuals" in ...
    Dirk EnzmannDirk Enzmann
    Jul 24, 2006 at 8:04 pm
    Jul 31, 2006 at 4:53 pm
  • Hi I have a little vector function that takes a vector A of strictly positive integers and outputs a matrix M each of whose columns is the vector, modified in a complicated combinatorical way. Now I ...
    Robin HankinRobin Hankin
    Jul 27, 2006 at 1:54 pm
    Jul 27, 2006 at 4:17 pm
  • Am I correct to understand from the previous discussions on this topic (a few years back) that if I have a matrix with missing values my PCA options seem dismal if: (1) I don�t want to impute the ...
    Quin WillsQuin Wills
    Jul 25, 2006 at 2:34 am
    Jul 27, 2006 at 9:48 am
  • Here it is again, hope this is more clear I am using the following data (only a small subset is given): Habitat Fungus.yield Birch 20.83829053 Birch 22.9718181 Birch 22.28216829 Birch 24.23136797 ...
    Nair, Murlidharan TNair, Murlidharan T
    Jul 22, 2006 at 5:00 pm
    Jul 26, 2006 at 4:49 pm
  • Dear Listers, I have encountered a strange problem using diff() and POSIXt ...
    Patrick GiraudouxPatrick Giraudoux
    Jul 23, 2006 at 7:17 am
    Jul 24, 2006 at 9:46 am
  • Hi I have just started to have a look at R. I have used most stats software packages and can use perl, visual basic etc. I am interested in how well it handles lots of output e.g. tables or charts ...
    Sharon snowdonSharon snowdon
    Jul 17, 2006 at 8:35 pm
    Jul 19, 2006 at 1:31 pm
  • I am trying to get robust standard errors in a logistic regression. Is there any way to do it, either in car or in MASS? Thanks for the help, Celso
    Celso BarrosCelso Barros
    Jul 4, 2006 at 4:14 pm
    Jul 6, 2006 at 1:11 am
  • R 2.2 on windows XP I have a dataset with multiple columns. Some of the columns represent independent variables, some represent dependent variables. I would like to run the same analyses on a fixed ...
    John SorkinJohn Sorkin
    Jul 3, 2006 at 11:39 am
    Jul 3, 2006 at 4:32 pm
  • Anyone out there using Linux RODBC and unixODBC to connect to a Microsoft SQL server? If possible can someone post a sample .odbc.ini file? I saw a few discussions on the archives a few years ago, ...
    Armstrong, WhitArmstrong, Whit
    Jul 26, 2006 at 9:52 pm
    Jul 27, 2006 at 2:53 pm
  • Dear r-help, I have a matrix, suppose, 10x10, and I need the matrix 5x5, having in each cell a mean value of the cells from the initial matrix. Please, point me to a function in R, which can help me ...
    Vladimir EremeevVladimir Eremeev
    Jul 27, 2006 at 9:37 am
    Jul 27, 2006 at 12:30 pm
  • Hello R-helpers! I have a question concerning extracting sequence information from a vector. I have a vector (representing the bins of a time series where the frequency of occurrences is greater than ...
    Kevin J EmersonKevin J Emerson
    Jul 24, 2006 at 3:45 pm
    Jul 24, 2006 at 6:23 pm
  • I have a covariance matrix that is not positive semi-definite matrix and I need it to be via some sort of adjustment. Is there any R routine or package to help me do this? Thanks, Roger
    Roger bosRoger bos
    Jul 21, 2006 at 12:59 pm
    Jul 21, 2006 at 5:34 pm
  • I am having trouble fitting correlation structures within nlme. I would like to fit corCAR1, corGaus and corExp correlation structures to my data. I either get the error "step halving reduced below ...
    Jul 18, 2006 at 6:28 pm
    Jul 21, 2006 at 12:19 am
  • Hi there, I'm having myself a hard time writing an algorithm for finding patterns within a given melody. In a vector I'd like to find ALL sequences that occur at least twice, without having to check ...
    John WiedenhoeftJohn Wiedenhoeft
    Jul 17, 2006 at 8:34 pm
    Jul 18, 2006 at 3:35 pm
  • Hi, I am using 'best.arima' function from forecast package to obtain point forecast for a time series data set. The documentation says it utilizes AIC value to select best ARIMA model. But in my case ...
    Sachin JSachin J
    Jul 12, 2006 at 1:58 pm
    Jul 17, 2006 at 3:37 pm
  • Hello, Could someone please explain the following warning while subsetting in the Matrix package? Thanks, John Thaden, PhD U. Arkansas for Med. Sci. Little Rock AR USA Formal class 'dgTMatrix' ...
    Thaden, John JThaden, John J
    Jul 6, 2006 at 4:53 am
    Jul 17, 2006 at 7:21 am
  • I have a problem where I need to loop over the total combinations of vectors (combined once chosen via combinatorics). Here is a simplification of the problem: STEP 1: Define three vectors a, b, c ...
    Jesse Albert CancholaJesse Albert Canchola
    Jul 13, 2006 at 10:40 pm
    Jul 14, 2006 at 8:39 pm
  • Hi, all, I'm trying to use RODBC to read data from Excel. However, I'm having trouble converting missing values to NA and rather perplexed by the output. Below illustrates my problem: ## DATA - copy ...
    Sundar Dorai-RajSundar Dorai-Raj
    Jul 12, 2006 at 10:28 pm
    Jul 13, 2006 at 11:50 am
  • We try the following: search() as.Date(1) zoo:::as.Date.numeric under three circumstances: 1. on a fresh session 2. after issuing library(zoo) noting that as.Date.numeric is provided by zoo 3. after ...
    Gabor GrothendieckGabor Grothendieck
    Jul 11, 2006 at 6:04 pm
    Jul 12, 2006 at 6:48 pm
  • Dear all, I'm working on a data.frame named, which has n cases and m columns. I generate the correlation matrix of by I find that there is no p-value on each correlation in the ...
    Guo Wei-WeiGuo Wei-Wei
    Jul 10, 2006 at 5:27 am
    Jul 10, 2006 at 12:54 pm
  • Hi, The following produces almost exactly what I needed. The problems are that the 'panel.dotplot' call (commented) generates the error 'Error in NextMethod("[") : argument "subscripts" is missing, ...
    Sebastian LuqueSebastian Luque
    Jul 7, 2006 at 3:33 pm
    Jul 9, 2006 at 4:31 am
  • Hi I am a beginner with R. I have been trying to import a tab delimited excel file but i get the following error message Warning message: file 'C:Documents and ...
    Rashmi PantRashmi Pant
    Jul 4, 2006 at 6:22 am
    Jul 4, 2006 at 1:03 pm
  • When I try to import an spss sav file with read.spss() I am getting the following error 'Error in read.spss("X:\\xxxx.sav") : error reading system-file header' and the import process is aborted. I ...
    Finn SandøFinn Sandø
    Jul 31, 2006 at 7:19 pm
    Aug 3, 2006 at 6:52 pm
  • Dear all, I am trying to do a standard mutivariate linear regression for my training set, and want to perform leave-one-out cross-validation to see how well the model is. I found several CV in R, ...
    Jul 13, 2006 at 1:28 am
    Jul 29, 2006 at 1:14 am
  • Ein eingebundener Text mit undefiniertem Zeichensatz wurde abgetrennt. Name: nicht verf?gbar URL:
    Jul 28, 2006 at 7:50 am
    Jul 28, 2006 at 9:12 am
  • Hello, I want to have a title that will look something like: "Results for \theta=2.1", given that I have a variable theta=2.1, and \theta should show on the screen like the greek letter. I've tried a ...
    Adrian DragulescuAdrian Dragulescu
    Jul 25, 2006 at 8:12 pm
    Jul 27, 2006 at 2:55 pm
  • Dear all I use R for Windows 2.3.1 on a fully updated Windows XP Home SP2 machine and I have two related regular expression problems. platform i386-pc-mingw32 arch i386 os mingw32 system i386, ...
    Stefan Th. GriesStefan Th. Gries
    Jul 23, 2006 at 1:48 am
    Jul 26, 2006 at 1:05 am
  • Dear R Users, Is it possible to make file names dependent on a changing variable? For instance. I generate random numbers in a loop and at each iteration I want data to write to file (I do not want ...
    Robert McfaddenRobert Mcfadden
    Jul 24, 2006 at 9:06 am
    Jul 24, 2006 at 9:34 am
  • Hello Using R v. 2.3.1 which I installed recently, when I start it as root, there is nothing I can do. I get "Error: function xx not found" even when trying to leave R using q(). R works fine when ...
    Roderick CastilloRoderick Castillo
    Jul 18, 2006 at 11:01 am
    Jul 20, 2006 at 5:32 pm
  • Hello. I've been using R for a couple of months and enjoying it a lot. This is my first post to R-help. I'm using the vcd package to make mosaic plots with labels on the tiles indicating the number ...
    Kie ZurawKie Zuraw
    Jul 19, 2006 at 2:47 pm
    Jul 20, 2006 at 1:41 pm
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Gabor Grothendieck: 132 posts Prof Brian Ripley: 73 posts Spencer Graves: 47 posts Jim holtman: 36 posts Uwe Ligges: 35 posts Duncan Murdoch: 29 posts Thomas Lumley: 26 posts Frank E Harrell Jr: 25 posts Peter Dalgaard: 23 posts Marc Schwartz (via MN): 22 posts Jacques VESLOT: 21 posts Martin Maechler: 21 posts Douglas Bates: 20 posts Liaw, Andy: 20 posts Hadley wickham: 18 posts Doran, Harold: 16 posts Markleeds: 16 posts Dieter Menne: 15 posts Gavin Simpson: 15 posts Zhijie zhang: 14 posts
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