Grokbase Groups R r-help January 2004

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390 discussions - 1,116 posts

  • Dear All, I would like to ask why the zeroeth power of a matrix gives me a matrix of ones rather than the identity matrix: [,1] [,2] [,3] [1,] 0 0 0 [2,] 0 0 0 [3,] 0 0 0 [,1] [,2] [,3] [1,] 1 1 1 ...
    Federico CalboliFederico Calboli
    Jan 20, 2004 at 4:40 pm
    Jan 23, 2004 at 8:22 pm
  • Director of Alternative Investments ACAM Advisors LLC 335 Madison Ave 8th Floor New York, NY 10017 (212) 920-8309
    Jeff LeeJeff Lee
    Jan 2, 2004 at 11:09 pm
    Jan 24, 2004 at 1:38 am
  • Hi All, I have a very simple problem. I have several files in a same directory. I would like to send for an object only the files that finish in ".sens.". I execute the command below, files <- ...
    Marcelo Luiz de LaiaMarcelo Luiz de Laia
    Jan 29, 2004 at 2:33 pm
    Jan 30, 2004 at 6:11 pm
  • Hi all, Say I have a matrix A with dimension m x 2 and matrix B with dimension n x 2. I would like to find the row in A that is closest to the each row in B. Here's an example (using a loop) ...
    Sundar Dorai-RajSundar Dorai-Raj
    Jan 27, 2004 at 8:00 pm
    Jan 28, 2004 at 5:50 pm
  • I am having trouble getting the HTML help pages to work. When I try the search engine I get an error on page response and nothing happens. When I try to click on the listed topics nothing happens. I ...
    Devin JohnsonDevin Johnson
    Jan 26, 2004 at 9:38 pm
    Apr 23, 2004 at 4:52 pm
  • Hello R-Users, I have some data sets which change on a daily bases. So far I have imported these sets into R, done all my evaluations resulting in a couple of plots, charts and tables of numbers ...
    Olaf BürgerOlaf Bürger
    Jan 28, 2004 at 9:01 pm
    Jan 30, 2004 at 2:57 pm
  • Hi, I try to use lm to fit a linear model with 600k rows and 70 attributes. But I can't even load the data into the R environment. The error message says the vector memory is used up. Is there anyone ...
    Yun-Fang JuanYun-Fang Juan
    Jan 30, 2004 at 3:03 am
    Feb 2, 2004 at 7:59 pm
  • Hi all, I have a R script that creates several input files for an analysis program. It loops through the matrix read into R and picks out submatrices and then creates a separate output file for each ...
    Kristin Kay NicodemusKristin Kay Nicodemus
    Jan 26, 2004 at 10:49 pm
    Jan 28, 2004 at 9:21 am
  • I'm reading a file into a list by: PDF = scan("file",what="character",sep="\10") "\10" is the newline character in this file, also tried "\n" originally On lines that are ended by "\13\10", both are ...
    Greg RiddickGreg Riddick
    Jan 22, 2004 at 7:58 pm
    Jan 26, 2004 at 4:15 pm
  • Hi Folks, The spreadsheet-like layout displayed when 'data.entry' is invoked is very useful simply for legible display of data, quite apart from its intended use for the purpose of entering or ...
    Ted HardingTed Harding
    Jan 12, 2004 at 8:19 pm
    Jan 13, 2004 at 2:41 am
  • Hello, I wrote an R function and want to build an R package on winXP. I have set my path:C:\bin;C:\MinGW\bin;C:\Perl\bin\;C:\Tcl\bin;C:\texmf\miktex\bin;C:\Program Files\R\rw1081\bin; I tried to run ...
    Jing WuJing Wu
    Jan 5, 2004 at 6:18 pm
    Jan 8, 2004 at 9:03 pm
  • I have used heatmap to visualize my microarray data. I have a matrix of M-values. I do the following. #The distance between the columns. sampdist <- dist(t(matrix[,]), method="euclidean") sclus <- ...
    Johan LindbergJohan Lindberg
    Jan 4, 2004 at 12:38 pm
    Jan 6, 2004 at 12:22 pm
  • Is there a function like "is.there" such that is.there ( a ) returns TRUE is object 'a' is in the current environment and FALSE otherwise? Thank you. Francisco J. Molina
    Francisco J MolinaFrancisco J Molina
    Jan 30, 2004 at 8:58 pm
    Jan 30, 2004 at 11:28 pm
  • hello there, I'm a new user to R and I am having difficulty reading a file into the program. Here's the error I keep getting, I bet there's a simple solution, but I cant find any... Error in ...
    Jan 29, 2004 at 4:19 pm
    Jan 29, 2004 at 10:33 pm
  • Hi all, I have problems with years of dates using "chron" package. I don't understand why R by this istruction: [1] 02/Jan/1930 reads "29" as 2029 and "30" as 1930. How could I change to read "00" to ...
    Massimiliano TripoliMassimiliano Tripoli
    Jan 28, 2004 at 10:50 am
    Jan 29, 2004 at 10:49 am
  • hello I am returning to some libraries that I had previously customised by amongst other things adding additional functions. I had simply typed these new functions into the file in ...
    Stephen HendersonStephen Henderson
    Jan 22, 2004 at 1:47 pm
    Jan 22, 2004 at 3:45 pm
  • Hallo! I want to plot multiple grouped data in a postscript file using a loop. As I use a loop no plot (or just one empty plot) is generated. Here an example: library(nlme) data(Loblolly) # example ...
    Karl KnoblickKarl Knoblick
    Jan 17, 2004 at 2:58 pm
    Jan 17, 2004 at 4:31 pm
  • Hello list, I am new to R, so if the question is rather silly, please ignore it. I was wondering wether it would be possible to use the models generated by pam, clara and the like as predictors? ...
    Renald ButerRenald Buter
    Jan 14, 2004 at 8:08 pm
    Jan 15, 2004 at 3:05 pm
  • Hi All, When I tried to do logistic regression (with high maximum number of iterations) I got the following warning message Warning message: fitted probabilities numerically 0 or 1 occurred in: (if ...
    Guillem ChustGuillem Chust
    Jan 25, 2004 at 1:59 pm
    Jan 26, 2004 at 4:40 pm
  • My Windows machine has gone "kaput" and I am trying to see how R might work on my Mac. I am interested in using the contributed packages, especially "waveslim" and "wavethresh". Are all packages ...
    Peter WickhamPeter Wickham
    Jan 21, 2004 at 7:52 pm
    Jan 22, 2004 at 1:00 am
  • For a long time I've wanted a way to conveniently extract multiple elements from a list, which [[ doesn't allow. Can anyone suggest an efficient function to do this? Wouldn't it be a sensible ...
    Waichler, Scott RWaichler, Scott R
    Jan 15, 2004 at 6:50 pm
    Jan 16, 2004 at 5:20 am
  • Dear List, As I understand, GLMM (in experimental lme4) and glmmPQL (MASS) do similar things using somewhat different methods. Trying both, I get the same coefficients, but markedly different std ...
    Dieter MenneDieter Menne
    Jan 7, 2004 at 7:04 pm
    Jan 12, 2004 at 5:32 pm
  • Could somebody help me to understand the syntax of R's ppois function? I'm looking to calculate the cumulative probability density of an observed value (y) given the expected mean (mu) and the level ...
    Mark St.JohnMark St.John
    Jan 9, 2004 at 3:12 pm
    Jan 9, 2004 at 5:24 pm
  • Hello, I already sent such an email before Christmas, but nobody answered, so here is my problem: I would like to sample a population but the result needs to be reproducible, using 'runif' or ...
    Jan 5, 2004 at 12:07 pm
    Jan 6, 2004 at 7:37 am
  • Hi all, I'd like to plot a set of data (x,y,z) as 3D-cloud, and add several line plots to the same 3D graph: Two questions: 1) How do I connect points to get a line? Warning message: type = l not ...
    Pascal A. NiklausPascal A. Niklaus
    Jan 30, 2004 at 12:13 pm
    Feb 3, 2004 at 10:11 pm
  • We are considering setting up a fast, RAM loaded machine as an "R-server" to handle the big problems not suitable for individual desktops and, also, to process ad hoc analysis requests via our ...
    Jim PorzakJim Porzak
    Jan 29, 2004 at 12:35 am
    Jan 30, 2004 at 1:14 am
  • Hi all, I'm trying to build from source on Linux and getting the following error when it tries to build the help for 'nlme': <snip ranef.lme text html latex example reStruct text html latex example ...
    Seth FalconSeth Falcon
    Jan 28, 2004 at 8:30 pm
    Jan 29, 2004 at 10:45 pm
  • I try to move from SPSS to R/S and am trying to reproduce the results of SPSS in R. I calculated a one-way anova with "spk" as experimental factor and erp as depended variable. The result of the ...
    Wolfgang PauliWolfgang Pauli
    Jan 11, 2004 at 4:27 pm
    Jan 29, 2004 at 3:59 pm
  • Hello All, I am trying to put a math expression into a plot title and at the same time, I want a value in the title to depend on a variable that I set earlier. Simple Example: n <- 20 plot(0, 0) ...
    Wolfgang ViechtbauerWolfgang Viechtbauer
    Jan 28, 2004 at 10:21 pm
    Jan 29, 2004 at 10:24 am
  • Hi all I want to conditionally operate on certain elements of a matrix, let me explain it with a simple vector example [1] 1 2 3 why zz is not (0, 0, 3) ????? the null <- assignment is to keep the ...
    Jan 26, 2004 at 7:15 pm
    Jan 29, 2004 at 8:50 am
  • Hello, everyone. I am new at this, but having a great time using R. I have, however, run into a small problem. I have tried, unsuccessfully, to install the Hmisc and Design libraries (Harrell FE Jr) ...
    Bema BonsuBema Bonsu
    Jan 12, 2004 at 2:07 pm
    Jan 28, 2004 at 4:34 pm
  • Hello, I didn't get any response on this before, leading me to believe I've missed something fundamental. Can anybody guide me in the correct direction for more help on this? Paul ...
    Paul BoutrosPaul Boutros
    Jan 24, 2004 at 7:31 am
    Jan 26, 2004 at 8:51 am
  • Hi all! How to retrieve the levels number of a factor object? See this code: groups<-gl(4,10) I want to retrieve the number of levels (4) of my object "groups" I tried groups.levels but this don't ...
    Laurent HoudusseLaurent Houdusse
    Jan 23, 2004 at 2:24 pm
    Jan 23, 2004 at 3:05 pm
  • Ok I made Jarque-Bera test to the residuals (merv.reg$residual) library(tseries) jarque.bera.test(merv.reg$residual) X-squared = 1772.369, df = 2, p-value = < 2.2e-16 And I reject the null hypotesis ...
    M. M. Palhoto N. RodriguesM. M. Palhoto N. Rodrigues
    Jan 14, 2004 at 4:21 pm
    Jan 21, 2004 at 9:26 am
  • Hi: In R, how can I "data.restore" an object that was "data.dump"ed in Splus (I am not sure of the exact version, but probably Splus5)? When I use data.restore, I get the following error message (I ...
    Ravi VaradhanRavi Varadhan
    Jan 20, 2004 at 5:05 pm
    Jan 20, 2004 at 8:22 pm
  • As an absolute beginner, still reading "Modern Applied Statistics with S" and exercising with its examples, I'm frequently stopped by what it looks to be R poor help system (or is it my gigantic ...
    V DemartV Demart
    Jan 19, 2004 at 4:51 pm
    Jan 19, 2004 at 7:56 pm
  • Dear R-listers, I would like to ask if it is possible to create ternary diagrams with contours. I want to plot a property that depends on a ternary mixture composition, so I think this would be the ...
    Kyriakos KachrimanisKyriakos Kachrimanis
    Jan 17, 2004 at 11:30 am
    Jan 19, 2004 at 7:14 am
  • I have a dataframe called cvar, with two variables (among many others) called MSA and ACTUP. Both are numeric. This was working fine. Then I found out that for two MSAs, ACTUP should be 1, not 0. so ...
    Peter FlomPeter Flom
    Jan 16, 2004 at 9:18 pm
    Jan 17, 2004 at 11:31 am
  • Ich habe in R eine Version von SIR gefunden und ausprobiert. Leider kann diese multivariate Responses nicht verarbeiten. Gibt es in R eine ausgefeilte Version von SIR?
    Jan 15, 2004 at 8:56 pm
    Jan 16, 2004 at 4:02 pm
  • V&R describes binomial GLMs with mortality out of 20 budworms. Is it appropriate to use the same approach with mortality out of numbers as low as 3? I feel reticent to do so with data that is not ...
    Patrick ConnollyPatrick Connolly
    Jan 14, 2004 at 11:28 pm
    Jan 15, 2004 at 8:15 am
  • I have the following function f <- function { ... model <- lm(rttx[,1] ~ rttx[,2] + 0); summary(model); ... } while summary(model) shows the summary if I execute the function line by line in the ...
    Jan 14, 2004 at 8:24 am
    Jan 14, 2004 at 7:53 pm
  • Hi all, My student, James Niehaus, and I have been working on an individual-based population genetic simulation package in R. Currently, the package is still rough, but useful enough that it may be ...
    Allan StrandAllan Strand
    Jan 6, 2004 at 2:32 am
    Jan 10, 2004 at 9:21 am
  • Hello, I exprerienced a problem with large data sets in R: I cannot import these data via procedure "read.table" (insuficient memory) and some other functions end with the same expception. Could you ...
    PaTa PaTaSPaTa PaTaS
    Jan 9, 2004 at 10:28 am
    Jan 9, 2004 at 2:58 pm
  • Hi - I'm running R 1.8.1 (compiled from source) on Mac OS X 10.3 (Panther). I find that, if Apple's X11 application is not running, Sweave gives an error when it wants to create a pdf or eps figure ...
    Kieran HealyKieran Healy
    Jan 7, 2004 at 6:44 am
    Jan 7, 2004 at 9:50 pm
  • DeaR useRs: I would like to assign a values in an object using a loop 'for'. This is a reduce example of my problem, my real problem is a few complicated: for (j in 1:10) { x.j<-rnorm(100) } I want ...
    Perez Martin, AgustinPerez Martin, Agustin
    Jan 7, 2004 at 4:53 pm
    Jan 7, 2004 at 5:53 pm
  • Hi, I would like to import some daily financial data from excel via csv. More specifically, I would like to be able to use the ts.union function from the tseries library as the dates are irregular ...
    Ashley DaviesAshley Davies
    Jan 2, 2004 at 8:29 am
    Jan 2, 2004 at 2:24 pm
  • Hi, the programming cycle in R is (1) create somefile.R in some ascii editor (2) use "source(somefile.R)" to read it. (3) change the file and repeat step (2). Or there's a better way ? Which section ...
    Pedro CruzPedro Cruz
    Jan 20, 2004 at 5:41 pm
    Apr 27, 2004 at 4:42 pm
  • Hi, df is a data.frame with 43 colums and 29877 rows with lot of NA. I want the column number for all respondendts in one column where is the first entry =0 as columnnumber. my first step: time <- ...
    Christian SchulzChristian Schulz
    Jan 31, 2004 at 3:43 pm
    Jan 31, 2004 at 10:38 pm
  • How does one loop over factors? Perhaps this is a newbie question. I tried: [1] caseX caseY caseZ Levels: caseX caseY caseZ + print (b == i) ; + print (i); + } [1] FALSE FALSE FALSE [1] 1 [1] FALSE ...
    Samuelson, Frank*Samuelson, Frank*
    Jan 30, 2004 at 7:08 pm
    Jan 31, 2004 at 1:22 pm
  • I'm using R 1.8.1 (Win32, Linux) and have some difficulties using validation functions for S4 classes. The problem is if I specify a validation function with setValidity("myclass", validate.myclass) ...
    Torsten SteuernagelTorsten Steuernagel
    Jan 29, 2004 at 8:30 pm
    Jan 30, 2004 at 9:41 pm
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