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569 discussions - 1,776 posts

  • Like many, I am sure, I get R-Help in digest form. Its easy enough to browse the subject lines, but then if an entry interests you, you have to embark on this tedious search or scroll to find it. It ...
    Trevor HastieTrevor Hastie
    Aug 9, 2005 at 5:27 pm
    Sep 2, 2005 at 3:56 pm
  • Thompson's Manual to Accompany Agresti's book refers to a package named "repeated". It's not on CRAN from what I can see. I have seen rpm's for it. Where is the best place to download this package? ...
    Rab45+Rab45+
    Aug 10, 2005 at 7:14 pm
    Aug 22, 2005 at 7:05 am
  • I have own function wrote. I used an algorithm, which was written in Matlab. in matlab: ... gamma = inv(v)*g; ... #v = matrix of variable size, v=vv(k) = k=2 = dimension of v 2x2 #g = a line vector ...
    Christian HinzChristian Hinz
    Aug 30, 2005 at 12:37 pm
    Jan 25, 2006 at 1:32 pm
  • Hi, I have a sparse matrix.I want to fill values into the entries whose value is 0.The new generated values should come from the interpolation of the values have existed.Does R provide such ...
    吴 昊吴 昊
    Aug 5, 2005 at 12:12 pm
    Oct 15, 2005 at 11:35 am
  • Dear Rexperts, I intend to burn some R CDs to colleagues in Vietnam. I want to put all binary files for base as well as contributed packages (for both Windows and Linux). It is very time consuming if ...
    Nam-Ky NguyenNam-Ky Nguyen
    Aug 31, 2005 at 3:49 am
    Sep 3, 2005 at 11:49 pm
  • Dear All, is there a stratified version of the Wilcoxon test (also known as van Elteren test) available in R? I could find it in the survdiff function of the survival package for censored data. I ...
    Heinz TuechlerHeinz Tuechler
    Aug 28, 2005 at 3:36 pm
    Aug 30, 2005 at 1:46 pm
  • dear R wizards--- I would like to do some book-on-demand printing at a popular printer named lulu, but lulu requires inclusion even of the basic postscript fonts. Interestingly, my book itself does ...
    Ivo_welch-Rstat8303Ivo_welch-Rstat8303
    Aug 22, 2005 at 3:37 pm
    Aug 30, 2005 at 1:34 am
  • I've been using R for a while under Mac OS X, which thanks to the R on OS X developers, is probably the best platform for learning R. I recently built a Linux box with a Pentium D processor, and am ...
    Jacob MichaelsonJacob Michaelson
    Aug 2, 2005 at 2:51 am
    Aug 5, 2005 at 11:51 pm
  • Hi, I have a 5x731 array A, and I want to compute the sums of the columns. Currently I do: apply(A, 2, sum) But it turns out, this is slow: 70% of my CPU time is spent here, even though there are ...
    Martin C. MartinMartin C. Martin
    Aug 5, 2005 at 4:16 pm
    Aug 5, 2005 at 5:46 pm
  • Hi, I just installed ROracle and RDBI. The connection to the database seems to work also. My problem is when I am selection rows that really exist in the database, it is returning nothing. Where ...
    Mathieu DrapeauMathieu Drapeau
    Aug 25, 2005 at 5:29 pm
    Aug 29, 2005 at 7:08 pm
  • Hi, I want to compute the quantiles of Chi^2 distributions with different degrees of freedom like x<-cbind(0.005, 0.010, 0.025, 0.05, 0.1, 0.5, 0.9, 0.95, 0.975, 0.99, 0.995) df<-rbind(1:100) ...
    Sigbert KlinkeSigbert Klinke
    Aug 26, 2005 at 12:44 pm
    Aug 26, 2005 at 4:21 pm
  • Dear All, I spent an entire evening in debugging a small, fairly simple program in R - without success. It was my Guru in Bayesian Analysis, Thomas Fridtjof, who was able to diagonose the problem. He ...
    Ravi VishnuRavi Vishnu
    Aug 23, 2005 at 10:03 am
    Aug 24, 2005 at 7:43 am
  • If there is a helpfile open (f.e ?glm) and it is the top window, then an exception error occurs (closing RGUI) when I hit the open file button. If the helpfile is not the top window (of the RGUI) I ...
    Knut KruegerKnut Krueger
    Aug 9, 2005 at 3:09 pm
    Aug 12, 2005 at 9:27 am
  • Hello!!! I have a folder (C:/R/) with matrix files, named by number, i.e. 0.mat, 1.mat,...,1250.mat. In this case, they are 5x5 simetric matrices. I would like to compute a property for each matrix ...
    Leonardo Sepulveda DuránLeonardo Sepulveda Durán
    Aug 12, 2005 at 2:44 pm
    Aug 29, 2005 at 8:57 pm
  • Hi All, I am new to post question on this list. I apologize if this question is too easy or irrelevant. I am doing a simulation study and I need to read a data file that can be easily read by SAS ...
    Shin, DavidShin, David
    Aug 24, 2005 at 3:22 pm
    Aug 24, 2005 at 6:14 pm
  • Sometimes even the easy stuff is difficult (for me)... I want to get input from different places to paste together an excel filename (so you know I'm using windows) that I can open with RODBC. I know ...
    Roger bosRoger bos
    Aug 19, 2005 at 2:46 pm
    Aug 19, 2005 at 6:10 pm
  • Dear All, With kind help from several friends on the list, I am getting close. Now here are something interesting I just realized: for random effects, lmer reports standard deviation instead of ...
    Shige SongShige Song
    Aug 17, 2005 at 10:30 am
    Aug 19, 2005 at 4:44 pm
  • Dear all: When I have more variables than units, say a 195*10896 matrix which has 10896 variables and 195 samples. prcomp will give only 195 principal components. I checked in the help, but there is ...
    Alan ZhaoAlan Zhao
    Aug 14, 2005 at 5:09 am
    Aug 15, 2005 at 5:42 pm
  • $values [1] 7.917775e+20 2.130980e+16 7.961620e+13 8.241041e+12 2.258325e+12 [6] 3.869428e+11 6.791041e+10 2.485352e+09 9.863098e+08 9.819373e+05 [11] 3.263408e+05 2.929853e+05 2.920419e+05 ...
    Roy NitzeRoy Nitze
    Aug 5, 2005 at 8:37 am
    Aug 5, 2005 at 2:23 pm
  • Hi all, I would like to suggest that all R functions/etc like: codes-deprecated grid-internal ns-alt ns-dblcolon ns-hooks ns-internals ns-lowlev ns-reflect.Rd tools-internal ts-defunct ...
    Jose Claudio FariaJose Claudio Faria
    Aug 4, 2005 at 10:00 pm
    Aug 5, 2005 at 1:08 pm
  • Dear list, can someone tell me why this two pieces of code give me the same results? [1] 1 2 3 4 5 shouldn't the first one be 0 1 2 3 4 5 thank you, simone
    Simone GabbrielliniSimone Gabbriellini
    Aug 3, 2005 at 9:24 pm
    Aug 4, 2005 at 10:01 pm
  • Is there a canonical way to check if all elements of a vector or matrix are the same? Solutions below work, but look hackish to me. [1] TRUE Best, Vincent -- Vincent Goulet, Associate Professor ...
    Vincent GouletVincent Goulet
    Aug 29, 2005 at 7:35 pm
    Aug 30, 2005 at 10:16 am
  • Hello, I use lda (package: MASS) to obtain a lda object, then want to employ this object to do the prediction for the new data like below: predict(object, newdata, dimen=1, method=c("plug-in", ...
    Shengzhe WuShengzhe Wu
    Aug 26, 2005 at 11:01 am
    Aug 27, 2005 at 4:48 pm
  • I have two data sets: File1.txt: Name id1 id2 id3 ... N1 0 1 0 ... N2 0 1 1 ... N3 1 1 -1 ... ... File2.txt: Group id1 id2 id3 ... G1 1.22 1.34 2.44 ... G2 2.33 2.56 2.56 ... G3 1.56 1.99 1.46 .. ...
    Hu, Ying (NIH/NCI)Hu, Ying (NIH/NCI)
    Aug 17, 2005 at 8:07 pm
    Aug 18, 2005 at 4:41 pm
  • Dear all, I have a population with three age-classes, at time t=0 the population is: n.zero <- c(1,0,0) I have a transition matrix A which denotes "fertility" and "survival": A <- matrix(c(0,1,5, ...
    Rau, RolandRau, Roland
    Aug 17, 2005 at 10:15 am
    Aug 18, 2005 at 12:20 pm
  • I have seen, several times, dots (like this: "y ~." ) in formula descriptions, noticeably in R help. I am unable to see what it does correspond to. Any ideas ? -- --~~ Toulouse, Grenoble, Auch, ...
    Laurent ValdesLaurent Valdes
    Aug 16, 2005 at 4:43 pm
    Aug 17, 2005 at 4:43 pm
  • Thanks a lot! But unfortunately I will not know the dimensions of both lists. And further, the lists may be (partly) disjoint as: x <- list("1"=c(a=1, b=2, c=3), "2"=c(d=4, b=5, e=6)). And last but ...
    Jan HummelJan Hummel
    Aug 15, 2005 at 5:09 pm
    Aug 16, 2005 at 11:06 am
  • Dear List, I have the following code that does what I want: x <- replicate(5,replicate(10,sum(rnorm(rpois(1,10))))) How might one change it such that the maximum value generated by rnorm(rpois(1,10)) ...
    xpRt.wannabexpRt.wannabe
    Aug 11, 2005 at 7:55 pm
    Aug 12, 2005 at 4:47 am
  • Hi all, I'm trying to build R 2.1.1 on Ubuntu 5.04 i686-SMP. Configure goes well with: ./configure --with-BLAS --with-readline=no but once I run 'make', I get the following error: In file included ...
    Jake MichaelsonJake Michaelson
    Aug 3, 2005 at 3:02 pm
    Aug 8, 2005 at 5:47 pm
  • Hi, Thanks for reading. I am running a process in R for microarray data analysis. RedHat Enterprise Linux 4, dual AMD CPU, 6G memory. However, the R process use only a total of <200M memory. And the ...
    Zhilin LiuZhilin Liu
    Aug 2, 2005 at 12:27 am
    Aug 2, 2005 at 9:35 pm
  • Hi, I have two doubts about the nested aov output. 1) I have this: Error: Tratamento Df Sum Sq Mean Sq Tratamento 2 1557.56 778.78 Error: Tratamento:Rato Df Sum Sq Mean Sq F value Pr( F) Residuals 3 ...
    Ronaldo Reis-Jr.Ronaldo Reis-Jr.
    Aug 30, 2005 at 2:01 pm
    Sep 7, 2005 at 11:03 am
  • Hello, I'm very new in working with tcl/tk in R and have a problem which will probably sound silly to most of you. Here is the code I have problems with: readcelfiles <- function() { require(tcltk) ...
    DeggleDeggle
    Aug 31, 2005 at 9:49 am
    Aug 31, 2005 at 2:08 pm
  • Hi: I started using R and am an avid fan of the product and also the concept. I am considering switching jobs but do wish to continute with R while the industry standard seems to be SAS. Is there any ...
    Avneet singhAvneet singh
    Aug 29, 2005 at 1:50 pm
    Aug 30, 2005 at 1:37 am
  • Dear All, After playing with lmer for couple of days, I have to say that I am amazed! I've been using quite some multilevel/mixed modeling packages, lme4 is a strong candidate for the overall winner, ...
    Shige SongShige Song
    Aug 18, 2005 at 8:15 am
    Aug 21, 2005 at 4:39 pm
  • Hi! I have a few questions concerning reading of tables from R to other programs. My main question is if it’s even possible to read a table created in R (with the functions data.frame and save) to ...
    Fredrik ThuringFredrik Thuring
    Aug 19, 2005 at 8:18 am
    Aug 19, 2005 at 4:07 pm
  • Dear listers, I have written a function to facilitate the drawing of altitude profiles with x (distance), y (altitude) and a z parameter (altitude magnification). profplot<-function(x,y,z,...){ op ...
    Patrick GiraudouxPatrick Giraudoux
    Aug 18, 2005 at 2:21 pm
    Aug 18, 2005 at 8:27 pm
  • I'm having trouble with the wilcox.test command in R. To demonstrate the anomalous behavior of wilcox.test, consider (R closes/crashes) I believe that wilcox.test(c(1.5,5.5), c(1:10000), exact = ...
    Greg HatherGreg Hather
    Aug 17, 2005 at 7:12 pm
    Aug 18, 2005 at 6:53 pm
  • I am trying to replicate the first example from stepAIC from the MASS package with my own dataset but am running into error. If someone can point where I have gone wrong, I would appreciate it very ...
    Adaikalavan RamasamyAdaikalavan Ramasamy
    Aug 15, 2005 at 12:37 am
    Aug 16, 2005 at 2:52 pm
  • Hi r-help, A very simple question for which I have not been able to find an answer in the docs: How can I merge two character strings? I am searching for the equivalent of the (non-existing) ...
    Claus HindsgaulClaus Hindsgaul
    Aug 16, 2005 at 11:01 am
    Aug 16, 2005 at 1:15 pm
  • Dear R Users , Suppose that we want to regress a certain autoregressive model using SVM. We have our data and also some fixed kernels in libSVM behinde e1071 in front. The question: Where can we ...
    Amir SafariAmir Safari
    Aug 8, 2005 at 5:18 pm
    Aug 15, 2005 at 6:05 pm
  • ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to ...
    Anne PiotetAnne Piotet
    Aug 9, 2005 at 2:59 pm
    Aug 11, 2005 at 8:49 am
  • Hi, I have a dataset which has around 138 variables and 30,000 cases. I am trying to calculate a mahalanobis distance matrix for them and my procedure is like this: Suppose my data is stored in ...
    Weiwei ShiWeiwei Shi
    Aug 8, 2005 at 4:53 pm
    Aug 11, 2005 at 2:24 am
  • Meta: This question is somewhat long and has two parts, I would be very happy for someone just to nudge me in the right direction with the manual / tutorial, as I am somewhat lost... 1) How do I fit ...
    Dan BolserDan Bolser
    Aug 10, 2005 at 9:41 am
    Aug 11, 2005 at 12:37 am
  • Dear All, where can I find information about how to write an assigment form of a function? For curiosity I tried to write a different form of the levels()-function, since the original method for ...
    Heinz TuechlerHeinz Tuechler
    Aug 10, 2005 at 12:24 pm
    Aug 10, 2005 at 9:25 pm
  • suppose I have the following data x<-c(rep(.1,5),rep(.2,6),rep(.4,10),rep(.5,20)) y<-c(rep(.5,3),rep(.6,8),rep(1.2,8),rep(2.5,18),rep(3,4)) If I plot(x,y) in R, I will only get seven distinct ...
    Kerry BushKerry Bush
    Aug 8, 2005 at 6:57 pm
    Aug 9, 2005 at 5:42 am
  • I downloaded R-patched (2005-08-04) from CRAN today. I ran ./configure --enable-R-shlib I received the error message: checking for recommended packages... no configure: error: Some of the recommended ...
    Kevin E. ThorpeKevin E. Thorpe
    Aug 4, 2005 at 6:57 pm
    Aug 5, 2005 at 4:41 pm
  • Hello, How to stop the process when there is a mishandling making R system frozen? If there is a way other than quitting the system when frozen occurs? Thank you, Shengzhe
    Shengzhe WuShengzhe Wu
    Aug 4, 2005 at 2:18 pm
    Aug 4, 2005 at 6:30 pm
  • I am struggling with migrating some stata code to R. I have a data frame containing, sometimes, repeat observations (rows) of the same family. I want to keep only one observation per family, ...
    Chris WallaceChris Wallace
    Aug 1, 2005 at 2:24 pm
    Aug 2, 2005 at 9:58 am
  • Hello, I'm trying to use the package ttda, wich is involved in text analysis, for my own data about answers in a company survey. I've installed it, as well as ispell, but when trying to use an ...
    Laurent ValdesLaurent Valdes
    Aug 29, 2005 at 12:54 pm
    Aug 29, 2005 at 3:36 pm
  • Hello I am fitting a Cox PH model using the function coxph(). Does anyone know how to obtain the estimate of the covariance matrix under the null hypothesis. The function coxph.detail() does not seem ...
    Devarajan, KarthikDevarajan, Karthik
    Aug 25, 2005 at 10:37 pm
    Aug 26, 2005 at 2:44 pm
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