Grokbase Groups R r-help May 2004

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514 discussions - 1,565 posts

  • Hi all, in the help for RClassUtils I found the expression "privileged slots" in function "checkSlotAssignment" with the explanation: /privileged slots (those that can only be set by accesor ...
    Matthias KohlMatthias Kohl
    May 27, 2004 at 1:01 pm
    Jun 3, 2004 at 6:35 pm
  • Hi When I use plot(hclust(dist..)...)...) etc to create a dendrogram of a hierarchial cluster analysis, I end up with a vertical tree. What do I need to do to get a horizontal tree? Also, my users ...
    michael watson (IAH-C)michael watson (IAH-C)
    May 19, 2004 at 11:35 am
    May 21, 2004 at 2:18 pm
  • Hi, I want to know which distance is using in the function kmeans and if we can change this distance. Indeed, in the function pam, we can put a distance matrix in parameter (by the line ...
    May 28, 2004 at 7:37 am
    May 29, 2004 at 5:53 am
  • What R functionnalities are there to do missing values imputation (substantial proportion of missing data)? I would prefer to use maximum likelihood methods ; is the EM algorithm implemented? in ...
    May 12, 2004 at 2:42 pm
    May 12, 2004 at 9:05 pm
  • I apologize if this has been addressed before; recently I read an article in Forbes which discussed how SCO was going after companies that have been using Linux. The article made the point that the ...
    Greg TarpinianGreg Tarpinian
    May 27, 2004 at 7:53 pm
    May 28, 2004 at 5:51 pm
  • Hi R-helpers Has anyone had any experience doing CGI or Servlets or using an httpd server in R? Context: we are interested in running dynamic demographic calculations on the internet (life tables, ...
    May 5, 2004 at 5:09 pm
    May 10, 2004 at 1:20 pm
  • Hello, A collegue of mine has compared the runtime of a linear model + anova in SAS and S+. He got the same results, but SAS took a bit more than a minute whereas S+ took 17 minutes. I've tried it in ...
    Arne MullerArne Muller
    May 10, 2004 at 2:36 pm
    May 11, 2004 at 5:50 pm
  • Hi all, I dump the result of a long simulation, which I know has run to completion and returned a fairly complex list of lists of things. However, when I try to read it back in, I get the following ...
    Webb SpragueWebb Sprague
    May 5, 2004 at 6:53 pm
    May 6, 2004 at 2:21 pm
  • I'm trying to use plotting character to encode the variable "block" from my dataset in a conditioned lattice graphic (R 1.9.0 on Mac OS 10.3.3). The data I'm using is the dataframe "dryoutcover" ...
    Anthony Darrouzet-NardiAnthony Darrouzet-Nardi
    May 29, 2004 at 8:24 pm
    May 31, 2004 at 6:00 pm
  • Achim: Thanks again for the conference. We had good fun. I have 2 requests: 1) I'd like to email my R-foundation membership to you. I will scan the form and send just like I did for the meeting. 2) I ...
    Chad ShawChad Shaw
    May 25, 2004 at 5:52 pm
    May 28, 2004 at 11:19 am
  • Dear all, Can anyone point me to a package that can perform Common principle components? Thank you. Jos?? P. Granadeiro
    J. Pedro GranadeiroJ. Pedro Granadeiro
    May 26, 2004 at 10:40 am
    May 27, 2004 at 7:40 am
  • I'm confused - does the fact that you are only distributing ".zip" files means that (shudder) I need Microsoft Windows in order to run this? (I hunted on the website but you seemed to only have .zip ...
    Ajay ShahAjay Shah
    May 18, 2004 at 7:02 pm
    May 21, 2004 at 3:43 am
  • I really like to use R for all my graphs, and as I work with stable isotopes I want to have a proper chemical notation in my plots I have looked at ?plotmath, but didn't find the answer and also ...
    Andersson, HenrikAndersson, Henrik
    May 18, 2004 at 9:59 am
    May 18, 2004 at 5:00 pm
  • Hi, I am looking for an efficient way of skipping big chunks of lines on a connection (not necessarily at the beginning of the file). One way is to use read lines, e.g. readLines(1e6), but a) this ...
    Vadim OgranovichVadim Ogranovich
    May 1, 2004 at 10:25 pm
    May 14, 2004 at 6:09 pm
  • Hi all, Is there any documentation on running R like one would run a shell or Perl script, with out/input directed appropriately, environment variable access, and command switch processing? I looked ...
    Webb SpragueWebb Sprague
    May 10, 2004 at 4:15 pm
    May 11, 2004 at 3:48 pm
  • Dear R-help, I've encounter what seems to me a strange problem with "names<-". Suppose I define the function: fun <- function(x, f) { m <- tapply(x, f, mean) ans <- x - m[match(f, unique(f))] ...
    Liaw, AndyLiaw, Andy
    May 10, 2004 at 2:41 am
    May 10, 2004 at 1:59 pm
  • Hi, all: Two examples are shown below. I want to use the multiple comparison of Dunnett. It succeeded in upper case "example 1". However, the lower case "example 2" went wrong. In "example 2", the ...
    Chihiro KurokiChihiro Kuroki
    May 20, 2004 at 2:02 am
    Jun 17, 2004 at 11:00 am
  • Slackware 9.1, R 1.9.0, 2.54GHZ P4, 2GB RAM example(prcomp) never finishes prcomp data(USArrests) prcomp prcomp(USArrests) === The following test also appears to hang. === What is the recommended ...
    Al PiszczAl Piszcz
    May 30, 2004 at 6:47 pm
    Jun 3, 2004 at 10:02 pm
  • Could somebody advise me about importing a txt file as a frame? I am using the command: test <- read.delim ("~/docs/perl/expr_ctx.txt2", header=T, sep = "\t", row.names = 1) This gives me an error ...
    May 16, 2004 at 3:40 am
    May 31, 2004 at 7:18 pm
  • Hi,all a quick question A larger file include many"." (stands for missing value) for variable, say, x. after read in the file and assign it another name such as : x1<-data$x but x1 is always a ...
    Yong WangYong Wang
    May 30, 2004 at 1:24 am
    May 30, 2004 at 9:11 pm
  • I think people have been more than a little disingenuous in claiming that getting the Rmetrics package to go under Linux is transparent. If you have to dig into the code and edit it, then transparent ...
    Rolf TurnerRolf Turner
    May 21, 2004 at 12:02 pm
    May 24, 2004 at 11:31 pm
  • I am looking for a function to restore saved graphics for further editing, such as changing its title, labels, or legend. How can I do it in R? Thanks in advance. -- Daehyok Shin (Peter) Geography ...
    May 15, 2004 at 8:53 pm
    May 17, 2004 at 1:58 am
  • I would like to generate a vector having the same length as the number of rows in a matrix. The vector should contain an integer indicating the "group" of the row, where identical matrix rows are in ...
    Scott WaichlerScott Waichler
    May 14, 2004 at 6:40 pm
    May 15, 2004 at 3:34 am
  • Dear all, I have a data frame with different numbers of NA??s in each column, e.g.: x y 1 2 NA 3 NA 4 4 NA 1 5 NA NA I now want to do a linear regression on y~x with all the NA??s removed. The ...
    Christoph ScherberChristoph Scherber
    May 4, 2004 at 1:41 pm
    May 4, 2004 at 3:59 pm
  • Hi all, I'd like to add the Bhattacharyya method to the dist function. What is the best way to do this? I'm using R 1.9.0 and I was looking for the code that defines the already existing distances, ...
    Giampiero SalviGiampiero Salvi
    May 3, 2004 at 9:50 am
    May 3, 2004 at 12:21 pm
  • Context:Linux debian testing, compiled R 1.9.0 from source. I've just installed the contributed ffnet package wit no problem at all. But when loading the library the following error message is ...
    V Demartino2V Demartino2
    May 31, 2004 at 7:38 pm
    Jun 2, 2004 at 3:51 pm
  • * Rmetrics - new Built 190.10053 *The new built has now implemented my 'timeDate' and 'timeSeries' classes which became part of the fBasics package. Furthermore, MS Windows specifics ...
    Diethelm WuertzDiethelm Wuertz
    May 31, 2004 at 7:29 am
    Jun 1, 2004 at 9:04 am
  • Hello, Im reading through some manuals, but I cannot find my answer. I have a file containing many data: Vpn Code Family Age F1 F2 ... F17 1 1 M 46 1 2 ... 1 2 1 D 18 3 2 ... 4 3 2 M 50 3 3 ... 3 ...
    Martin KlaffenboeckMartin Klaffenboeck
    May 27, 2004 at 7:58 pm
    May 28, 2004 at 5:48 pm
  • Hi! In this lib a function called silhoutte.default is defined than on the R prompt it type Error: Object "silhouette.default" not found R1.9.0 The same error are at R1.8.1 And I knew that a function ...
    May 25, 2004 at 3:38 pm
    May 25, 2004 at 7:59 pm
  • Dear Everybody: I'm doing my usual "how does that work in R" thing with some Stata projects. I find a gross gap between the Stata and R in Cox PH models, and I hope you can give me some pointers ...
    Paul JohnsonPaul Johnson
    May 10, 2004 at 11:59 pm
    May 13, 2004 at 2:35 pm
  • Dear list, I get a syntax error for the following function: for(na.omit(sqrt(D)) 2) {na.omit(A)-(na.omit(B)+(na.omit(sqrt(C))))} Any idea what is wrong? I am using R 1.8.1 on Linux, Kernel ...
    Ulrich LeopoldUlrich Leopold
    May 5, 2004 at 3:06 pm
    May 6, 2004 at 8:18 am
  • Dear all, I have a surprising problem with the representation of frequencies in a histogram. Consider, for example, the R code: b<-rnorm(2000,3.5,0.3) hist(b,freq=F) When I plotted the histogram, I ...
    Cristian PattaroCristian Pattaro
    May 25, 2004 at 10:27 am
    May 29, 2004 at 1:13 am
  • Hi All, (I have a degree in math, but I am too embarassed to ask my colleagues, so here goes:) I would like to get a vector normal (orthogonal) to a plane formed by two other vectors. In matlab I do ...
    May 28, 2004 at 7:22 pm
    May 28, 2004 at 11:31 pm
  • Is there any way that I can see the step by step code for functions in the base package? For instance the dexp function. I am a student working on writing my own function for something that is ...
    Brittany Erin LaineBrittany Erin Laine
    May 13, 2004 at 8:30 pm
    May 25, 2004 at 5:01 pm
  • Hi All, I'm building a package using C/C++ and Fortran code which usually runs fine. However I do get occasional bus errors around the time of exiting one of the C functions. Where do I need to be ...
    Ingmar VisserIngmar Visser
    May 12, 2004 at 9:31 am
    May 17, 2004 at 11:11 am
  • Hello again, I was too quick before. What I was looking for was a function that constructs the design (or incidence) matrix (X in a linear model) from a factor. Uwe Ligges suggested using ...
    Patrik WaldmannPatrik Waldmann
    May 12, 2004 at 4:34 pm
    May 12, 2004 at 6:26 pm
  • Hi, I'm have a list of integer vectors and I want to perform an outer() like operation on the list. As an example, take the following list: mylist <- list(1:5,3:9,8:12) A simple example of the kind ...
    David OrmeDavid Orme
    May 10, 2004 at 2:26 pm
    May 10, 2004 at 7:00 pm
  • Dear R Users, do you know a way to copy an R object using C code? I know that there is a copyMatrix and also a copyVector function. There is also something called copyListMatrix, what is this good ...
    Csardi GaborCsardi Gabor
    May 6, 2004 at 12:18 am
    May 7, 2004 at 5:53 am
  • Hi. I want to use R with very large files, a couple hundred megabytes, but R crashes every time that I try. Reading help files seems to indicate that R ought to manage its memory itself. I know I ...
    Janet RosenbaumJanet Rosenbaum
    May 4, 2004 at 11:55 am
    May 5, 2004 at 12:45 pm
  • Dear List, Please bear with a poor newbee, who might be doing everything backwards (I was brought up in pure math). I want to make a simple multi-linear regression on a set of data. I did some ...
    TAPO (Thomas Agersten Poulsen)TAPO (Thomas Agersten Poulsen)
    May 28, 2004 at 7:10 pm
    May 31, 2004 at 7:57 pm
  • Dear all, Which options should I use when running the configure script and/or which changes should I make to Makeconf to build the binary for R-1.9.0 but using only statically linked libraries ? I ...
    May 18, 2004 at 2:09 pm
    May 28, 2004 at 11:44 pm
  • The search at mentioned a function "gauss.hermite{rmutil}". However, 'install.packages("rmutil")' produced, 'No package "rmutil" on CRAN.' How can I find the current status of ...
    Spencer GravesSpencer Graves
    May 28, 2004 at 4:35 am
    May 28, 2004 at 6:02 pm
  • Hello, Is there a way to extract multiple columns from a dataframe using their names instead of their numbers? Currently I use: data2 <- data1[, c(1,3,9)] And I am looking for something like data2 <- ...
    Adrian DusaAdrian Dusa
    May 27, 2004 at 2:19 pm
    May 27, 2004 at 2:35 pm
  • Hello: I have already found references "optim" , but I do not understand its means !! So I want to ask next question I have a question in Math. If we want to get X's and Y's solution, X 0 and Y 0 We ...
    May 5, 2004 at 10:50 am
    May 26, 2004 at 5:20 pm
  • [1] "januar" "februar" "marts" "april" "maj" "juni" "juli" "august" "september" [10] "oktober" "november" "december" Surely someone on the list can beat that in elegance? Bendix Carstensen ...
    BXC (Bendix Carstensen)BXC (Bendix Carstensen)
    May 24, 2004 at 1:58 pm
    May 24, 2004 at 4:12 pm
  • Dear all, I have a data set containing GPS fixes of animal locations. To check that the GPS's are working properly, I would like to plot the time of the fixes (y-axis) against the date of the fixes ...
    May 17, 2004 at 1:13 pm
    May 17, 2004 at 7:30 pm
  • Hi, I am getting errors of the following kind. I can't seem to point the source of the error. I would greatly appreciate any advice. Many thanks and good day, -Melinda Error message ...
    Siew Leng TENGSiew Leng TENG
    May 16, 2004 at 8:07 am
    May 16, 2004 at 10:38 pm
  • Hi , i would like filter out all combinations of a data-mining result? How i have to declare X because in every loop step it have another lengths ? X <- numeric(length(i1,...,i64)) ? Many thanks ...
    Christian SchulzChristian Schulz
    May 15, 2004 at 10:02 pm
    May 16, 2004 at 3:17 pm
  • When I tried to read all the entries (after searching the FAQ) for "row names xtable", I get START-INFO-DIR-ENTRY * R FAQ: (R-FAQ). The R statistical system ... ... xtable* Export data to LaTeX and ...
    Jeff D. HamannJeff D. Hamann
    May 13, 2004 at 12:39 am
    May 15, 2004 at 5:48 am
  • Can someone point me to literature and/or R software to solve the following problem: Assume n true scores t measured as x with uncorrelated errors e , i.e. x = t + e and assume each true score to a ...
    Jens OehlschlägelJens Oehlschlägel
    May 13, 2004 at 9:06 am
    May 14, 2004 at 6:40 pm
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Prof Brian Ripley: 130 posts Uwe Ligges: 60 posts Gabor Grothendieck: 51 posts Peter Dalgaard: 48 posts Liaw, Andy: 32 posts Wolski: 31 posts Jason Turner: 26 posts Thomas Lumley: 25 posts Spencer Graves: 22 posts Douglas Bates: 21 posts Deepayan Sarkar: 19 posts John Fox: 18 posts Roger D. Peng: 18 posts Duncan Murdoch: 16 posts Martin Maechler: 16 posts Wwsprague: 16 posts Sundar Dorai-Raj: 15 posts Petr Pikal: 13 posts Sean Davis: 13 posts Vadim Ogranovich: 13 posts
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