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430 discussions - 1,477 posts

  • R users, How come R doesn't have a mascot? Linux has one and so does LaTeX, so shouldn't R? I personally think that associating a "friendly face" with R would be a good thing for R (one letter names ...
    Damian BetebennerDamian Betebenner
    Dec 2, 2004 at 4:12 pm
    Dec 17, 2004 at 3:56 am
  • I have been following the discussions on 'Reasons not to answer very basic questions in a straightforward way' with interest as someone who is also new to R and has had similar experiences. As such ...
    Robert Brown FM CEFASRobert Brown FM CEFAS
    Dec 1, 2004 at 4:46 pm
    Dec 7, 2004 at 5:38 pm
  • R now has this ability as well via the "sinkplot" and "textplot" commands provided by the "gplots" package. -G LEGAL NOTICE\ Unless expressly stated otherwise, this messag...{{dropped}}
    Warnes, Gregory RWarnes, Gregory R
    Dec 16, 2004 at 6:04 pm
    Dec 21, 2004 at 11:22 pm
  • Dear List, I have acquired a new desktop and wanted to put a free OS on it. I am trying Fedora Core 1, but not sure what the best Linux OS is for using R 2.0.1? Thank you in advance for your input, ...
    Thomas W VolschoThomas W Volscho
    Dec 12, 2004 at 8:23 pm
    Dec 14, 2004 at 7:23 pm
  • I need information about space state models in structural model and kalman filtering. I have a univariate time serie and i nedd aplicate space state model Thank's ---------------------------------
    Rene PinedaRene Pineda
    Dec 6, 2004 at 3:24 pm
    Dec 28, 2004 at 7:08 pm
  • I am trying to store a couple numbers for each partition, in a subset of the partitions of my data set. Of course, one can accomplish this using a binary tree. (The first split is on ...
    Dec 6, 2004 at 3:09 am
    Dec 6, 2004 at 5:36 pm
  • I gather from reading the back-issues of r-help that it should be possible (modulo a number of caveats) to read an excel (yuck!) file into R using RODBC. I have obtained and installed ODBC and the ...
    Rolf TurnerRolf Turner
    Dec 4, 2004 at 2:49 pm
    Dec 6, 2004 at 5:22 pm
  • Pat MeyerPat Meyer
    Dec 17, 2004 at 5:52 pm
    Dec 18, 2004 at 1:26 pm
  • hi all If I wanna get the total number of lines in a big file without reading the file's content into R as matrix or data frame, any methods or functions? thanks in advance. Regards
    Hu ChenHu Chen
    Dec 6, 2004 at 2:12 pm
    Dec 7, 2004 at 2:00 am
  • Dear all, I am trying to calculate a score for a string sequence consisting of the following four letters: ACGT. I have got a matrix giving the scores for each pair of letters. So for example the ...
    Dec 29, 2004 at 1:17 pm
    Dec 29, 2004 at 5:54 pm
  • Hi I'm using R 2.0 in SuSE 9.2. When I plot data as a boxplot, the boxes appear on the plot in alphabetical order (of group) rather than the order in which they appear in the data. So far, the only ...
    Paul JH DrakePaul JH Drake
    Dec 24, 2004 at 10:09 am
    Dec 24, 2004 at 6:16 pm
  • Dear R users, I know of the possibility to import bitmaps via the nice pixmap library. But if you later on create a PDF it is somewhat disappointing to have such graphics bitmapped. Is there a trick ...
    Hinrich GöhlmannHinrich Göhlmann
    Dec 7, 2004 at 9:19 am
    Dec 20, 2004 at 10:32 pm
  • Just a small suggestion since Windows have a file system not designed for command line use... Would it be possible to add the possibility of automatically adding/modifying the path to the R ...
    Henrik AnderssonHenrik Andersson
    Dec 6, 2004 at 1:43 pm
    Dec 7, 2004 at 9:16 am
  • It is easy to spot response nonlinearity in normal linear models using plot(something.lm). However plot(something.glm) produces artifactual peculiarities since the diagnostic residuals are ...
    Patrick FoleyPatrick Foley
    Dec 5, 2004 at 12:49 am
    Dec 6, 2004 at 2:26 am
  • Hi I want a function that takes precisely one named argument and no unnamed arguments. The named argument must be one of "a" or "b". If "a" is supplied, return "a". If "b" is supplied, return 2*b ...
    Robin HankinRobin Hankin
    Dec 17, 2004 at 12:18 pm
    Dec 17, 2004 at 4:48 pm
  • Hi, I am just wondering if there is an easy way to count in a numeric vector how many numbers don't have replicates. For example, a=c(1,1,2,2,3,4,5), how can I know there are three numbers (3, 4 and ...
    Jun DingJun Ding
    Dec 16, 2004 at 9:40 pm
    Dec 17, 2004 at 2:21 am
  • Hello, Does anyone know of a "slick" way to get R to convert a string which is all upper case to a string where the first letter in each word is upper case and all others are lower case? I suspect ...
    Damian BetebennerDamian Betebenner
    Dec 5, 2004 at 3:21 pm
    Dec 6, 2004 at 8:11 pm
  • Dear list I would like to be able to group terms in a formula using a function that I will call tvar(), eg. the formula Y ~ 1 + tvar(x:A) + tvar(z) + u + tvar(B) + tvar(poly(v,3)) where x,u and v are ...
    Claus DethlefsenClaus Dethlefsen
    Dec 13, 2004 at 4:10 pm
    Dec 16, 2004 at 9:47 pm
  • I am trying to run R from an apache C++ module in a shell script to plot some data to display it in apache later. I get the error (reported in apache's logs): Xlib: connection to ":0.0" refused by ...
    Doktora vDoktora v
    Dec 13, 2004 at 5:25 pm
    Dec 13, 2004 at 10:23 pm
  • I have been thinking about how to reduce the number of basic questions that elicit the ...ahem... robust debate that has occurred about how to answer them. One theme of such questions is "I want to ...
    Jim LemonJim Lemon
    Dec 3, 2004 at 9:48 am
    Dec 5, 2004 at 3:39 am
  • Hi! Sorry for asking a trivial questions, but I can't seem to figure this out. I have a dataframe called master containing 30-odd variables. In this dataframe, I have observations across these 30 ...
    Tobias MuhlhoferTobias Muhlhofer
    Dec 2, 2004 at 12:31 am
    Dec 2, 2004 at 11:05 pm
  • Wish to install a local source package on Un*x platform from within R. Same thing as I can accomplish from cmdline as $ export R_LIBS=~/R/library $ cd /path/to/pkg $ R CMD INSTALL -l $R_LIBS <pkgname ...
    Paul RoebuckPaul Roebuck
    Dec 31, 2004 at 9:01 pm
    Jan 2, 2005 at 8:29 am
  • Hi, I´m trying to write some R classes but I din´t find documentation enought to develop them. I read there is 2 ways to write classes, using S3 ou S4 models. And it seems that S4 is the best model, ...
    Gilvan JustinoGilvan Justino
    Dec 28, 2004 at 4:46 pm
    Dec 31, 2004 at 12:18 am
  • I am wondering if it is possible to read.table repeatedly from a list of file names into a new list of table names. For example: filenames <- list.files() then with a function like rf <- function(i) ...
    Thomas hillsThomas hills
    Dec 28, 2004 at 10:47 pm
    Dec 29, 2004 at 12:00 pm
  • Hi I want to create a vector of colors that are as different from one another as possible. ?rainbow states "Conceptually, all of these functions actually use (parts of) a line cut out of the ...
    michael watson (IAH-C)michael watson (IAH-C)
    Dec 21, 2004 at 11:05 am
    Dec 23, 2004 at 6:34 pm
  • I'm looking at Pinheiro & Bates "Mixed-Effects Models in S and S-PLUS" at the moment. Several datasets are used, one of which is called "PBIB" (a partially balanced incomplete block design). All the ...
    Ted HardingTed Harding
    Dec 19, 2004 at 7:44 pm
    Dec 21, 2004 at 8:53 pm
  • Is there a simple function in R to get a moving standard deviation (i.e. for the last x samples)? My goal is to plot bollinger bands around a moving average for price data. I use kernel smoothing for ...
    Doktora vDoktora v
    Dec 13, 2004 at 5:28 pm
    Dec 14, 2004 at 11:47 am
  • I am bootstrapping using a function that I have defined. The "Statistic" of the function is an array of 10 numbers. Therefore if I use 1000 replications, the "t" matrix will have 1000 rows each of ...
    Lisa PappasLisa Pappas
    Dec 9, 2004 at 10:14 pm
    Dec 11, 2004 at 3:22 pm
  • Dears, anyone has experiences with text mining and R? I'll be very greatfull for tutorial or examples. Thanks -- Daniele Medri - http://www.medri.org
    Daniele MedriDaniele Medri
    Dec 2, 2004 at 5:29 pm
    Dec 6, 2004 at 9:27 pm
  • Hi, After reading some of the posting in this list, I came across this posting from: From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk Date: Fri 29 Oct 2004 - 08:02:40 EST Replying to Re: [R] Errors ...
    CHAN Chee SengCHAN Chee Seng
    Dec 1, 2004 at 5:59 am
    Dec 6, 2004 at 5:19 am
  • a data set like this: year month day count 2001 1 1 10 2001 1 2 11 .... 2004 7 17 8 .... basically it is a count of of some numbers everyday through a few years now I'd like to get the mean of the ...
    Terry MuTerry Mu
    Dec 5, 2004 at 4:06 pm
    Dec 5, 2004 at 5:52 pm
  • Tobias Muhlhofer wrote: I am trying to define a large number of variables through a loop construct. He wants to do for (i in 1:100) { assign(paste("v", i, sep=""), ....something or other...) } This ...
    Richard A. O'KeefeRichard A. O'Keefe
    Dec 1, 2004 at 3:25 am
    Dec 3, 2004 at 8:34 am
  • To display many small graphics one above the another (like Edward Tufte's sparklines), I'd like to use layout in the graphics package with more than 15 rows. I found that the limit of 15 is set by ...
    Jeroen Van HoutteJeroen Van Houtte
    Dec 30, 2004 at 10:31 pm
    Jan 13, 2005 at 11:52 pm
  • Hi, I have ~40,000 rows in a database, each of which contains an id column and 20 additional columns of count data. I want to cluster the rows based on these count vectors. Their are ~1.6 billion ...
    Dan BolserDan Bolser
    Dec 15, 2004 at 11:37 am
    Dec 17, 2004 at 11:09 pm
  • Hello, I am a beginner with R. I read many tutorials and the FAQ but I cannot solve my problem. I use barplot() to view my graph. I try to get more interval marks on y axis. I wasn't able to find ...
    Sebastien MorettiSebastien Moretti
    Dec 6, 2004 at 2:30 pm
    Dec 6, 2004 at 3:48 pm
  • I have a compilation problem on FC2, 2xXeon box. The following dialogue output from the end of the compilation illustrates: [very large snipping sound ...] * DONE (cluster) begin installing ...
    John LogsdonJohn Logsdon
    Dec 1, 2004 at 3:42 pm
    Dec 2, 2004 at 9:08 am
  • Hi, I often run into this problem: I have a data.frame with one column containing entries that are not unique. What I then want is a subset of the data.frame in which the entries in that column have ...
    Rudi AlbertsRudi Alberts
    Dec 23, 2004 at 7:28 pm
    Dec 23, 2004 at 7:28 pm
  • I'm currently using the below function from some library (MASS?) for writing my data out to file. I'm using it instead of plain old "write" because it does buffering. The problem that I'm having is ...
    Gene CutlerGene Cutler
    Dec 23, 2004 at 12:09 am
    Dec 23, 2004 at 6:00 pm
  • I am trying to install a local package and get this unexpected error: ---------- Making package UMSA ------------ adding build stamp to DESCRIPTION installing R files installing data files installing ...
    Kjetil Brinchmann HalvorsenKjetil Brinchmann Halvorsen
    Dec 8, 2004 at 1:33 pm
    Dec 23, 2004 at 1:56 pm
  • R x <- 0. + 1:8000 R y <- outer(-x, x, pmin) Error: cannot allocate vector of size 1000000 Kb Why does R need to allocate a gigabyte to create an 8000 x 8000 matrix? It doesn't have any trouble with ...
    Brahm, DavidBrahm, David
    Dec 22, 2004 at 8:11 pm
    Dec 22, 2004 at 11:33 pm
  • Some years ago when I used S-PLUS, I seem to remember, there was a discussion about a simple method of removing trailing spaces from vector elements. I'd be fairly sure the same would work in R, but ...
    Patrick ConnollyPatrick Connolly
    Dec 21, 2004 at 10:38 pm
    Dec 21, 2004 at 11:36 pm
  • I hesitate to post this question in the light of recent threads, indeed I have hesitated for several weeks, however I have come to a full stop and really need some help if I am going to progress. I ...
    Rachel PearceRachel Pearce
    Dec 13, 2004 at 9:37 am
    Dec 16, 2004 at 5:46 pm
  • Hello, I wonder if I ran into a bug. If I do summary(df1$X1) - df1.y df1.y a b c d e [1,] 50.74627 8.955224 17.91045 19.40299 2.985075 sort(df1.y) a b c d e [1,] 2.985075 8.955224 17.91045 19.40299 ...
    Martin WegmannMartin Wegmann
    Dec 14, 2004 at 11:23 am
    Dec 14, 2004 at 1:41 pm
  • Hi I'm seeing some "odd" behaviour with cbind(). My code is: I read a text file in which has two columns, Code and Description. Neither of these are factors. I want to add a column of colours to the ...
    michael watson (IAH-C)michael watson (IAH-C)
    Dec 10, 2004 at 2:19 pm
    Dec 11, 2004 at 1:42 pm
  • Hi I have a function which draws a plot, using the layout() function to divide the screen into two parts. The function works fine, but then my next call to plot() draws the plot in the first section ...
    michael watson (IAH-C)michael watson (IAH-C)
    Dec 10, 2004 at 11:47 am
    Dec 10, 2004 at 2:19 pm
  • Hi I have a complicated plot which has a potentially large legend. What I want to do is actually create the legend in a new window. Has anyone done this before? I'd like to be able to create a window ...
    michael watson (IAH-C)michael watson (IAH-C)
    Dec 9, 2004 at 11:52 am
    Dec 10, 2004 at 9:32 am
  • Hello, I am looking into description of surf.ls(spatial) and see under value $beta - the coefficients. When I use polynomial of degree 2 to fit surface I expect to get 4 coefficients: z = a_1 x^2 + ...
    M pM p
    Dec 9, 2004 at 5:11 pm
    Dec 10, 2004 at 7:45 am
  • Hi, I would like to get the coefficients of x^0, x^1, x^2, . , x^6 from expansion of (1+x+x^2)^3. The result should be 1, 3, 6, 7, 6, 3, 1; How can I calculate in R? You help will be greatly ...
    Peter YangPeter Yang
    Dec 3, 2004 at 7:56 pm
    Dec 4, 2004 at 3:01 am
  • Does anyone know R is to be cited in a publication? I've looked everywhere on the website and cannot find this. Thanks, Heather -- Heather Maughan Department of Ecology and Evolutionary Biology ...
    Heather MaughanHeather Maughan
    Dec 31, 2004 at 6:20 pm
    Dec 31, 2004 at 6:41 pm
  • Dear List: I am estimating a gls model and am having to make some rather unconventional modifications to handle a particular problem I have identified. My aim is to fit a GLS with an AR1 structure, ...
    Doran, HaroldDoran, Harold
    Dec 29, 2004 at 12:03 am
    Dec 31, 2004 at 11:45 am
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Liaw, Andy: 62 posts Peter Dalgaard: 60 posts Gabor Grothendieck: 55 posts Prof Brian Ripley: 41 posts Ted Harding: 37 posts Uwe Ligges: 34 posts Marc Schwartz: 31 posts Spencer Graves: 30 posts Kjetil Brinchmann Halvorsen: 26 posts michael watson (IAH-C): 25 posts Martin Maechler: 23 posts Berton Gunter: 21 posts Thomas Lumley: 19 posts Petr Pikal: 17 posts Frank E Harrell Jr: 16 posts Richard A. O'Keefe: 15 posts BXC (Bendix Carstensen): 13 posts Duncan Murdoch: 13 posts John Fox: 13 posts Bogdan romocea: 12 posts
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