similar to: plot.table on R 1.9.1

Hi R user! What is the fastest way to export a large matrix or vector to a MySQL database? The use of data.frame() and dbWriteTable() makes the process slow, so is there any <direct> alternative? Regards Meinhard Ploner

Hi, Suppose I have: for(i in 1:100000) rnorm(100000) (just a fake example, as my actual example is too long) Is it possible to get the loop to print out i each time it has run? Something like: for(i in 1:100000) { print(i) rnorm(100000) } will only print i after the loop is completed. But if I want to print out i whenever it re-enters the loop, is it possible (so I know how

Hello! Maybe "frame" is not the right term in this context. I explain my problem by example code: fun2 <- function(objName, add) { ## the object "objName" should be increased by "add", ## but the evaluation should be done in the calling function (here: fun1) ## ...... what's the right code?? } fun1 <- function() { x <- 1 fun2("x",

Hi there, I downloaded version 1.9.1 WinZip file, 9.367 bytes ( so I can update my R and use the vcd package) but cannot get the download from your Web site to unzip and install. So silly! The error message is :" Error reading header after processing 0 entries." I tried downloading from 3 different URLs, all yielding the same message when I try to unzip and install the file.

i was searching for the source of bca.ci, a function of the package boot. I tried require(boot, keep.source=TRUE) but again the source was not viewable. How should i do? Best regards Meinhard Ploner ---------------- PS > version _ platform i386-apple-darwin8.8.1 arch i386 os darwin8.8.1 system i386, darwin8.8.1 status major 2

Thanks a lot, James!! The problem is fixed. On the version 1.4.0 Mac/darwin (the latest available version for this system) the function read.table (which is called from read.delim etc., too) has the bug you explained. Inserting the row nlines <- nlines+1 after lines <- c(lines, line) removes this bug. M. On Friday, February 22, 2002, at 02:33 PM, james.holtman at convergys.com

Hi! I have R 1.9.1, Mac OS X 10.3.5, GNU Emacs 21.2.1 and ESS 5.2.3. I installed today the ESS by not changing ess-site.el, but creating .emacs in $home with the single line: $ cat ~/.emacs (load "/usr/local/lib/ess-5.2.3/lisp/ess-site") If I start now emacs and then R (with M-x R) then I get: > options(STERM='iESS', editor='emacsclient') but using fix() oder

I am new on R, so I have a maybe naive question: if I have many large data.frames and I use only one or two per session, what's the best way? If all are stored in the actual .Rdata, the system gets slow. On the other hand, I wouldn't like to make a separate package for the data. Should I save it with save() and then remove it with rm() ? Could I reload it then? Thanks for suggestions

Hi, Suppose I've got a matrix, and the first few elements look like "x1 + x3 + x4 + x5 + x1:x3 + x1:x4" "x1 + x2 + x3 + x5 + x1:x2 + x1:x5" "x1 + x3 + x4 + x5 + x1:x3 + x1:x5" and so on (have got terms from x1 ~ x14). If I want to replace all the x1 with i7, all x2 with i14, all x3 with i13, for example. Is there an easy way? I tried to put what I want

It's possible to overlap an external image (jpg or pdf) with a plot generated with R? Specifying the image as the background of the plot might not be possible... any idea? thanks Meinhard Ploner

In R prior to 2.6.0 with matrizes as well as with data.frames it is possible to do: a[2, c(TRUE, FALSE)] In R 2.6.0 the mixed indexing works only for matrizes. Is this the intention, a bug, or did I get something wrong? Best regards Meinhard Meinhard Ploner Althingstrasse 15 39031 Bruneck P.IVA 0234 058 0212 Tel. +39 340 8937861 www.data-ploner.com [[alternative HTML version

hi! I tried to build a very simple package with NAMESPACE file, such that datasets are loaded only dynamically. > a2 <- function(x=a1) x+4 > a1 <- 1:10 > package.skeleton("aaa", list=c("a1", "a2")) Then I modified the help files and added the file NAMESPACE with these 2 lines: useDynLib(aaa) export(a1, a2) Then "R CMD BUILD aaa" works

Hi all, I have Win XP and R 2.3.1 on my notebook. I would like to write a package which includes some Fortran 95 code. Interestingly, if I compile and link the simple file test90.f90 directly with g95 -c test90.f90 g95 -shared -o test90.dll test90.o then PE Viewer ( a dll viewer) shows me the right functions in the export table, hence I can use the dll in R. But as it should become part of a

I write to ask you an help about the package gregmisc. I saw the instructions, and I need some functionalities of this package, but I am unable ti download it. On friday I was able to download thte .zip, but R does not install this package, today there is no possibility to download it. What I have to do? Thanks Anna Maria Paganoni Anna

Dear all, is there an easy way to create error bars for the following types of plots: a) barplots b) interaction plots Many other statistics packages (e.g. Statistica) offer very nice interaction plots with error bars, and I??d like to be able to do the same in R. Best regards Christoph

Hi, how can I do multinomial logistic regression in R? I think glm() can only handle binary response variable, and polr() can only handle ordinal response variable. how to do logistic regression with multinomial response variable? Thanks __________________________________

I was hoping someone could help me! How do you exclude outliers from a set of data? Thanks, Laura [[alternative HTML version deleted]]

Dear Colleagues, I would like to do classification using logistic regression. Which R package can I use? Also is there any package for feature selection for logistic regression based method? Thanks a lot in advance. Happy holidays. Regards, Raj [[alternative HTML version deleted]]

hi all i am busy teaching a regression analysis course to second year science students. the course is fairly theoretical with all of the standard theorems and proofs... i would like to give the class a practical assignment as well. could you suggest a good problem and the location of the data set/s? it would be good if the data set has been analysed by a number of other people so that students

R-help, I have a barplot and I wish to add standard erros (or deviations) bars to it. How? Thank you Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn Faroe Islands Phone: +298 353900 Phone(direct): +298 353912 Mobile: +298 580800 Fax: +298 353901 E-mail: luisr at frs.fo Web: www.frs.fo