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280 discussions - 744 posts

  • Dear Lister I need to perform Generalized estimating equations on some data. Has 'R' any function or routine to do it? (GEE is same as GLM but with correlated y's) Thanks in advance Mostafa Protect ...
    Moustafa ElHousinieMoustafa ElHousinie
    Dec 1, 2002 at 6:58 am
    Dec 15, 2002 at 7:02 pm
  • try: library(foreign) read.ssd("J:\\QM\\Reports\\Sarthur\\SAS_Application\\SAS_Data_Sets","use") instead, hth, Merry Christmas, Bernhard -----Original Message----- From: Stephen Arthur ...
    Pfaff, BernhardPfaff, Bernhard
    Dec 20, 2002 at 5:39 pm
    Dec 25, 2002 at 7:39 pm
  • i make me thoughts about a "advanced tabulation" package similar to commercial software products like Quantum or Wincross. Before i'm beginning to fight with coding - is in the mailing-List anybody ...
    Christian SchulzChristian Schulz
    Dec 2, 2002 at 7:51 am
    Dec 4, 2002 at 7:28 pm
  • Dear R-Help, I'm using R version 1.6.0 on a Windows computer. I am trying to create a function that, among other things, constructs strings that refer to Windows files, e.g., I might want to ...
    John MiyamotoJohn Miyamoto
    Dec 22, 2002 at 9:02 am
    Dec 23, 2002 at 5:25 pm
  • Hello, I have two vectors x1 and x2 both in increasing order. I want to select the x1[j]th entry which is the max min of the x2[i]th entry. I can do this using if and for statements but is there a ...
    Pantelis AndreouPantelis Andreou
    Dec 6, 2002 at 6:13 pm
    Dec 10, 2002 at 6:31 pm
  • Hello ALL: I ran with success the following commands in R getting a file saved ------------------------------------------------------------------------------------ postscript() ...
    Andrew CriswellAndrew Criswell
    Dec 20, 2002 at 7:26 am
    Jan 30, 2003 at 3:56 am
  • I'm trying to get Sweave running for automatic report generation, and it seems to run fine when just using verbatim output. However, I've ran into a problem with xtable. I would like to print the ...
    Hedderik van RijnHedderik van Rijn
    Dec 20, 2002 at 9:14 pm
    Dec 23, 2002 at 11:38 pm
  • Hi: The y axis on the hist function seems to set its limits oddly. sometimes, it covers the full range of the data and sometimes it stops one major tick short. I have had this behavior with a variety ...
    Bud GibsonBud Gibson
    Dec 12, 2002 at 2:17 pm
    Dec 12, 2002 at 10:49 pm
  • Hi, I am trying to use piecewise linear regression to approximate a nonlinear function. Actually, I don't know how many linear functions I need, therefore, I want build an array of regression models ...
    Zhongming YangZhongming Yang
    Dec 18, 2002 at 9:59 pm
    Dec 19, 2002 at 6:22 pm
  • Recently, I was using aggregate() to develop averages by trial for an experiment I was running. Trials were indicated as ordinal numbers for each subject. aggregate() turned trial into factors during ...
    Bud GibsonBud Gibson
    Dec 8, 2002 at 3:04 pm
    Dec 9, 2002 at 12:54 am
  • Dear list members, I have a statistical question, that doesn't belong to this list, and I apologise for that in advance but I would appreciate your help very much. Is there some convention for ...
    Kyriakos KachrimanisKyriakos Kachrimanis
    Dec 18, 2002 at 3:03 pm
    Dec 20, 2002 at 12:42 am
  • Dear R-help, I find the example() function is extremely useful in many ways. However, there's a minor inconvenience: for long examples, it leaves lots of objects in the workspace. While it's ...
    Liaw, AndyLiaw, Andy
    Dec 17, 2002 at 4:34 am
    Dec 17, 2002 at 5:53 pm
  • Hi, I have a medium-sized (19MB) CSV file that I'd like to read into R. The read.csv() function seems to be a bit inefficient to deal with it, and I remember that using scan() with "what" options is ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Dec 14, 2002 at 9:45 pm
    Dec 16, 2002 at 2:19 pm
  • I'm trying to form contingincy tables among a set of character variables which were read from a .csv file and have missing represented as "". I want to exclude the missing levels from the table ...
    Michael FriendlyMichael Friendly
    Dec 11, 2002 at 4:16 pm
    Dec 12, 2002 at 10:39 pm
  • Dear R user/ developer, I'm wondering if anyone has already compiled R 1.6.1 for hp-ux. I tried in the past (with version 1.3) and haven't had mutch success. I'm very interested to hear any ...
    Frank MattesFrank Mattes
    Dec 4, 2002 at 11:54 am
    Dec 6, 2002 at 12:38 pm
  • Hi, I have got to my hands an excellent book by Michael J. Crawley ``Statistical Computing: An Introduction to Data Analysis using S-Plus'' (John Wiley & Sons, Ltd, ISBN 0-471-56040-5). Its beauty ...
    Matej CeplMatej Cepl
    Dec 2, 2002 at 7:37 pm
    Dec 3, 2002 at 5:28 pm
  • I just ran package update on my Win2000 R-1.6.1 and it installed new versions of lattice and grid (0.6-7 and 0.7-3 respectively). Then I ran demo(lattice) and noticed that the last plot, which is ...
    ApjaworskiApjaworski
    Dec 19, 2002 at 8:36 pm
    Dec 20, 2002 at 1:21 am
  • A couple of months ago I downloaded R 1.6.0's binary for Windows, which I have since been using without any particular problem, that is on one machine running Windows 98. Last week I set up a local ...
    Henri TourneurHenri Tourneur
    Dec 18, 2002 at 8:55 am
    Dec 18, 2002 at 5:34 pm
  • In Mathematica there is a neat feature, where you can change the head of a list from "list" to say "+" and obtain a sum of the list elements. I can't find a way to sum a list of vectors of same ...
    Stoyanov, TsvetanStoyanov, Tsvetan
    Dec 12, 2002 at 11:47 pm
    Dec 13, 2002 at 7:58 pm
  • In order to fit a probability distribution proposed by Sichel [Journal of the Royal Statistical Society. Series A (General), Vol. 137, No. 1. (1974), pp. 25-34], I need a modified Bessel function of ...
    Dr Andrew WilsonDr Andrew Wilson
    Dec 11, 2002 at 11:56 am
    Dec 11, 2002 at 6:07 pm
  • A question for a (experienced) user of the RPython package on linux. I'm trying to call R from python on a linux (Suse 7.3) box. After installing R CMD INSTALL -c RSPython_0.5-2.tar.gz I start python ...
    Agustin LoboAgustin Lobo
    Dec 23, 2002 at 11:55 am
    Dec 24, 2002 at 6:26 am
  • Hi Folks, I'm analysing some data which, in its simplest aspect, has 3 factors A, B, C each at 2 levels. If I do lm1 <- lm(y ~ A*B) say, and then summary(lm1, corr=T) I get the correlation matrix of ...
    Ted HardingTed Harding
    Dec 20, 2002 at 3:39 am
    Dec 20, 2002 at 4:27 pm
  • Hi, If I have a CSV file which has several comments at the top, and the data start immediately after the line: @DATA Is it possible to use the scan() command to get the CSV data into R, by only ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Dec 19, 2002 at 10:09 pm
    Dec 20, 2002 at 8:44 am
  • List, I am trying to extract summary statistics from a data frame with several variables (and NAs) into a dataframe with the columns: Variablename (ie the colnames of original data), mean, stdev, ...
    Alexander HerrAlexander Herr
    Dec 18, 2002 at 3:15 am
    Dec 19, 2002 at 3:40 pm
  • Dear R-lister, is there any function for Meta Analysis in R? (like homogeneity an, risk differences, relative riskm amd odds ratios? Many thanks, Edwin
    EpakpahanEpakpahan
    Dec 18, 2002 at 3:26 am
    Dec 18, 2002 at 8:25 am
  • I have two CSV files (exported from Excel), say file1 and file2. The have the same number of rows, and each has several columns, with names on the first line; and some of the columns in file1 are ...
    Ted HardingTed Harding
    Dec 17, 2002 at 5:19 pm
    Dec 17, 2002 at 5:57 pm
  • Hello, I just released a Graphics Device for R = 1.4 which outputs w3 compliant SVG. I Have also created a Java 1.1 applet which can render and manipulate the SVG generated from the graphics device ...
    T Jake LucianiT Jake Luciani
    Dec 16, 2002 at 7:34 pm
    Dec 17, 2002 at 12:22 am
  • My question concerns the logic behind hypothesis tests for fixed-effect terms in models fitted with lme. Suppose the levels of Subj indicate a grouping structure (k subjects) and Trt is a two-level ...
    Olof LeimarOlof Leimar
    Dec 15, 2002 at 1:25 pm
    Dec 16, 2002 at 9:23 pm
  • Hi Folks, With R Version 1.3.0 (2001-06-2) on SuSE-7.2 Linux, starting from scratch, first: Up comes the "spreadsheet" window, filled with 0s in a 300x4 array, and the "cursor" in the (1,1) cell ...
    Ted HardingTed Harding
    Dec 12, 2002 at 8:29 pm
    Dec 13, 2002 at 6:40 pm
  • Hi! In R 1.6.1. for Windows using RGui interface I try to use characters of Slovenian alphabet. Slovenia is a small Slavic country south of Austria with 3 characters which are not found in English ...
    Bojan LeskosekBojan Leskosek
    Dec 10, 2002 at 9:53 am
    Dec 11, 2002 at 11:13 am
  • Can someone clarify what I cannot make out from the documentation? The function 'clogit' in the 'survival' package is described as performing a "conditional logistic regression". Its return value is ...
    Ted HardingTed Harding
    Dec 10, 2002 at 12:57 pm
    Dec 10, 2002 at 5:33 pm
  • R-wizards I have successfully run with S+ a statistical power calculation for non-normal distributions as presented in M. Crawley?s new book.? When I tried the newest version of R on the same code, ...
    RexBryanRexBryan
    Dec 9, 2002 at 7:48 pm
    Dec 9, 2002 at 8:56 pm
  • There seems to be a problem with partial matching of argument names in boxplot(), in respect of the "horizontal" argument. I don't recall seeing this issue discussed previously. My apologies if I am ...
    Rolf TurnerRolf Turner
    Dec 1, 2002 at 6:19 pm
    Dec 2, 2002 at 2:15 pm
  • I'm trying to write a package which uses classes/methods as defined in the `methods' package. I have a single .R file which defines the class and various methods for that class. At the top of the ...
    Roger PengRoger Peng
    Dec 30, 2002 at 2:31 am
    Jan 3, 2003 at 8:26 am
  • Dear R masters! Is it possible to handle objects have already been plotted on x11 device? For example, I wrote the text on the wrong place. Can I remove it, or I have to re-draw all the canvas, ...
    Timur ElzhovTimur Elzhov
    Dec 27, 2002 at 4:54 pm
    Dec 28, 2002 at 2:10 am
  • Using R 1.6.1 on Windows 2000. The graphics history stored for the windows() device can be cleared using the menu system of rgui for Windows. Is there a corresponding R function that can be called ...
    Mike PragerMike Prager
    Dec 24, 2002 at 4:36 pm
    Dec 24, 2002 at 6:53 pm
  • Dear R-masters, I tried to compile this simpel C-code: //----------------- #include<R.h int main() { GetRNGstate(); return 0; } //----------------- Compiling: ~ gcc -o a a.c -I/usr/lib/R/include/ ...
    Timur ElzhovTimur Elzhov
    Dec 20, 2002 at 5:35 pm
    Dec 20, 2002 at 6:53 pm
  • Hello group, For my PhD I'm working on a spatial sampling grid. I do have two data sets which I'd like to compare using cross-correlograms or cross-variograms. Is this an option in one of the ...
    Rene EschenRene Eschen
    Dec 17, 2002 at 5:03 pm
    Dec 20, 2002 at 1:54 pm
  • Hello What is the appropriate method to test if a given distribution is a weibull thank you meriema email meriema.belaidouni at int-evry.fr
    Meriema BELAIDOUNIMeriema BELAIDOUNI
    Dec 18, 2002 at 3:26 pm
    Dec 19, 2002 at 9:05 am
  • I have a function that needs to be repeated many times with for loop. I have take measure to rm all the big arrays that was used in the function. The only array that cannot be rm was the return ...
    Apollo wongApollo wong
    Dec 18, 2002 at 9:48 pm
    Dec 19, 2002 at 12:30 am
  • Hello [R]ians, I'm hoping someone can clarify the difference between a Workspace Image and Working Directory. I created a directory on my PC, say, "C:\Program Files\R\Project1" and then saved my ...
    Iyue SungIyue Sung
    Dec 18, 2002 at 4:01 pm
    Dec 18, 2002 at 5:39 pm
  • Hello! I don't know if there is some R-package able to associate ontology to a long list of UniGene Name (a txt-tab file or an XML file), or if the best way is a Perl script. Some suggestion? Thanks! ...
    AlessandroSemeriaAlessandroSemeria
    Dec 2, 2002 at 3:32 pm
    Dec 18, 2002 at 3:16 pm
  • This seems like a problem that others may have run into before. I got a merged dataset from SPSS. It has ~750 columns X 3400 rows. Most of the cell entries are NA. There are about 375 rows that ...
    SMarkandsusanSMarkandsusan
    Dec 16, 2002 at 9:08 pm
    Dec 17, 2002 at 1:20 am
  • I'm trying to get a grasp of maximum-likelihood estimation and would like to find a package that performs mle (hopefully a simple example). It seems as if there are plenty of packages that make use ...
    Jeff D. HamannJeff D. Hamann
    Dec 15, 2002 at 8:50 am
    Dec 15, 2002 at 10:52 pm
  • I have to draw a phase space graph. Is it possible to draw the axis at the center at (0,0)? TIA -- myriam
    Myriam AbramsonMyriam Abramson
    Dec 15, 2002 at 1:53 am
    Dec 15, 2002 at 11:37 am
  • Hi, I use lm or loess to make smoothing. After smoothing I need "Residual Standard Error" in my script. Could you please tell me how can I get this information? Thanks,
    Zhongming YangZhongming Yang
    Dec 13, 2002 at 9:21 pm
    Dec 14, 2002 at 7:55 pm
  • Hello ALL: How do I get R to list all possible orderings of 2 x's and 3 y's? It should look like this (which rows appear first is unimportant): x x y y y x y x y y x y y x y x y y y x y x x y y y x y ...
    Andrew CriswellAndrew Criswell
    Dec 11, 2002 at 5:02 am
    Dec 11, 2002 at 10:03 pm
  • Dear all, I'm trying to use the lattice barchart function to obtain a bar plot of a variable for different values of two factors. The thing I'm trying to do is something like this: My problem is that ...
    Luis TorgoLuis Torgo
    Dec 10, 2002 at 12:50 pm
    Dec 10, 2002 at 7:44 pm
  • Hi, i am working on a data set with EDA. That includes QQ-Plots of residuals vs expected normal distribution. What puzzles me is that the range of ordinate and abscissae is so different: while the ...
    Fred JoppFred Jopp
    Dec 8, 2002 at 6:30 pm
    Dec 8, 2002 at 7:35 pm
  • Hey, all I am going to plot several 3-dimensional ellipsoids in R. For example, A is such a ellipsoid with mean u=[1 1 1]', covariance matrix C=[1 0 .5;0 1 .6;.5 .6 1]; So how can I plot such object ...
    Feng ZhangFeng Zhang
    Dec 5, 2002 at 6:58 pm
    Dec 6, 2002 at 11:21 pm
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