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229 discussions - 696 posts

  • I have tried to find a neat way to include graphs from R in LaTeX documents, but have not succeeded (I work with a WinEdt/MikTeX combination). The two roads I have stumbled along so far are the ...
    Robert LundqvistRobert Lundqvist
    Feb 7, 2002 at 8:11 am
    Feb 11, 2002 at 9:26 am
  • I would like to import "tif" images in R and I do not find any function that can do that. In Matlab there exists the function "imread" that can read the most known images format. Does a similar ...
    Herve CardotHerve Cardot
    Feb 20, 2002 at 12:26 pm
    Feb 22, 2002 at 2:24 pm
  • Hello all. I'm just a beginner trying to draw a boxplot and I don't know why every time I try to make it horizontal I receive the error message "parameter 'horizontal' couldn't be set in high-level ...
    Feb 17, 2002 at 7:26 pm
    Feb 19, 2002 at 3:18 pm
  • Is there a weighted median function out there similar to weighted.mean() but for medians? If not, I'll try implement or port it myself. The need for a weighted median came from the following ...
    Henrik BengtssonHenrik Bengtsson
    Feb 6, 2002 at 4:47 pm
    Feb 7, 2002 at 8:41 pm
  • Hi all (again) Sorry to bother you with this lame question, but since I have not been able to find the answer in the manuals.. How do I change the name of a variable in a data.frame?? (Without ...
    Fredrik KarlssonFredrik Karlsson
    Feb 4, 2002 at 8:59 am
    Feb 4, 2002 at 11:55 am
  • I would like to use the same source files with UNIX and MacOS Carbon versions of R. Some of these source files access other source files through the source function, but UNIX separates directories ...
    David R. BickelDavid R. Bickel
    Feb 20, 2002 at 7:54 pm
    Mar 13, 2002 at 6:00 am
  • Hello, I am looking for a routine to do a logistic regression. In the book "Modern Applied Statistics with S-PLUS" a function is described which uses the 'ms' command. Is there an analogue for R, or ...
    John JanmaatJohn Janmaat
    Feb 22, 2002 at 9:37 pm
    Feb 25, 2002 at 2:47 am
  • I am looking to fit one or more latent categorical variables to data that is a mixture of categorical and continuous variables. Factor analysis would work for continuous data, latent class analysis ...
    Dr Stuart LeaskDr Stuart Leask
    Feb 21, 2002 at 11:18 am
    Feb 21, 2002 at 5:48 pm
  • Thanks to all who responded. Not all of the advice helped me with that particular problem, but, I have learned a lot just from your answers. 1. R for Mac 10 (Carbon version) uses the Mac convention ...
    Jason BoydJason Boyd
    Feb 19, 2002 at 11:22 pm
    Feb 21, 2002 at 3:40 pm
  • Hi, Is it possible to create a ts() object, whose data is daily based BUT measured only on working days? In other words, suppose I have a data set with 255 observations, measured from 29 June 1959 to ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Feb 11, 2002 at 2:08 am
    Feb 15, 2002 at 12:10 pm
  • Simple usage questions that I ought to be able to figure on my own, but can't. 1.I'm able to produce a cross tabulation table showing counts with either table or xtabs. But I want column percentages ...
    Paul JohnsonPaul Johnson
    Feb 12, 2002 at 6:37 am
    Feb 12, 2002 at 1:47 pm
  • Hello everyone, Can someone point me to some resources on managing data in R and/or S-plus? I have started using R more and more often in my work and I really like it. But, managing data is very ...
    Magill, BrettMagill, Brett
    Feb 8, 2002 at 4:42 pm
    Feb 11, 2002 at 3:08 pm
  • A few days ago I loaded R version 1.4.1 to run on Windows 98 and haven't been able to find information on the GUI approach in the FAQs, R Reference Index, or Search Engine . Edit has an item that ...
    Watkins, JaniceWatkins, Janice
    Feb 20, 2002 at 3:27 pm
    Feb 21, 2002 at 4:24 pm
  • I'm working up a set of small working examples in R to show what various distributions are and the beauty of the central limit theorem. Those example programs are in this directory ...
    Paul JohnsonPaul Johnson
    Feb 17, 2002 at 4:05 pm
    Feb 19, 2002 at 6:35 pm
  • have http://wwwmaths.anu.edu.au/~johnm/r/dsets/ the would Where did you get the austpop.r? If you got it from the URL I pasted above, then you shouldn't have this problem. The austpop.R from the URL ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Feb 1, 2002 at 12:34 am
    Feb 19, 2002 at 1:24 pm
  • I have a stock market trading values time series. What's the best way to extract the "last day of month" values. I looked at function window() but doesn't appear suitable for this since it expects ...
    Lukas KubinLukas Kubin
    Feb 26, 2002 at 11:06 am
    Mar 19, 2002 at 12:16 pm
  • i am sure that there is a simple solution that i am just overlooking, but there is no logical test for = there is one for != and ,<, =, <=... what do i do if i need to check if something IS EQUAL or ...
    Jimi adamsJimi adams
    Feb 25, 2002 at 5:06 pm
    Feb 26, 2002 at 8:40 am
  • Hi all, Running the following code: Wilcoxon rank sum test with continuity correction data: y0 and y1 W = 250, p-value = 0.02074 alternative hypothesis: true mu is not equal to 0 Warning message ...
    Dominik GrathwohlDominik Grathwohl
    Feb 25, 2002 at 4:47 pm
    Feb 25, 2002 at 6:22 pm
  • Saving lda.default as text files from within gui="none" and from within gui="gnome" and comparing afterwards with diff, I get: alobo at humboldt: diff lda.default.gnome.txt lda.default.nognome.txt ...
    Agustin LoboAgustin Lobo
    Feb 22, 2002 at 12:25 pm
    Feb 24, 2002 at 7:20 pm
  • I have to solve a clustering problem. My first step is to determinate the number of clusters, that's why I 'm using the Calinski index ( [tr(b)/(k-1)]/[tr(w)/(k-1)] ) which i try to maximize to have ...
    David WartelDavid Wartel
    Feb 20, 2002 at 4:37 pm
    Feb 23, 2002 at 10:15 am
  • I understand that the Gnome interface is experimental and not supported if not specified during configuration. I did compile the source files of 1.4.1 as follows: ./configure --with-gnome. At the end ...
    Daniele PontilloDaniele Pontillo
    Feb 18, 2002 at 7:09 am
    Feb 19, 2002 at 9:53 am
  • i have a loop inside of which i am selecting elements from a list i am wondering if once the points are selected there is a way to remove the element from the list, not reduce it to zero, but ...
    Jimi adamsJimi adams
    Feb 11, 2002 at 2:45 pm
    Feb 11, 2002 at 5:45 pm
  • I'd like to produce a series of simple line graphs for my methods class that show the three questions used on a repeated survey to make up a particular index. The data frame is: year complicated ...
    Andrew PerrinAndrew Perrin
    Feb 8, 2002 at 8:42 pm
    Feb 11, 2002 at 2:30 pm
  • Hi, Sorry if this is a very basic question, but when I run this glm(formula = loge ~ lat + ne + dep, family = gaussian) summary shows the same formula but results only for the first two variables ...
    Iago mosqueiraIago mosqueira
    Feb 8, 2002 at 11:26 am
    Feb 8, 2002 at 1:35 pm
  • I did some serach around. It seems that ROC curve computation is not supported on R. Anyone has some leads? Thanks. Jason ===== Jason G. Liao, Ph.D. Division of Biometrics UMDNJ School of Public ...
    Jason LiaoJason Liao
    Feb 1, 2002 at 4:39 pm
    Feb 4, 2002 at 9:56 am
  • Dear R Community, When making a summary with a vector, the result is "numeric" and I can recall its components (like median, mean, etc.) for further use. However, if I use summary with a matrix, the ...
    Patrick BuetzbergerPatrick Buetzberger
    Feb 28, 2002 at 11:11 am
    Feb 28, 2002 at 2:15 pm
  • Dear R users I wonder if it is possible to run R code in the batch mode like in Splus (Splus5 scriptfile outputfile). Any hints? Andreas ...
    Andreas PaulingAndreas Pauling
    Feb 27, 2002 at 4:18 pm
    Feb 28, 2002 at 9:25 am
  • Dear R community: it is possible to replace NA?s in a data frame with zeroes? what should I do? Thanks in advance Juan Pablo MSN Photos es la manera m?s sencilla de compartir e imprimir sus fotos ...
    Juan pablo perezJuan pablo perez
    Feb 25, 2002 at 3:24 pm
    Feb 27, 2002 at 9:50 am
  • When I saw the above I tried to create a matrix from a list but could not get it to work: my.lm <- lm( rnorm(10) ~ I(1:10) ) my.list <- list(1, 2, 3, 4, 5, 6, my.lm, my.lm, my.lm) my.mat <- matrix( ...
    Gabor GrothendieckGabor Grothendieck
    Feb 26, 2002 at 1:47 am
    Feb 26, 2002 at 6:37 pm
  • I want to set up a simple Tk dialog interface to a function in R, such that when the "OK" button is pressed, the dialog window is destroyed and then R does its work on the data/parameters/whatever ...
    David FirthDavid Firth
    Feb 22, 2002 at 6:12 pm
    Feb 22, 2002 at 8:15 pm
  • Dear R users I have a problem with predict.tree() when I want the fitted values of a tree object to be returned (i.e. argument 'newdata' is missing). Whatever I specify for argument 'type' the fitted ...
    Christian-Za KellerChristian-Za Keller
    Feb 15, 2002 at 3:27 pm
    Feb 15, 2002 at 6:53 pm
  • Dear R users, I would really appreciate some help, I have a plain text file which contains info like NANATGGGGGGGCCCAGCTTGAATTCCCNTCCCCNTTCCCATCCAGGCC I would like to read it as a vector, for ...
    Sandra RomeroSandra Romero
    Feb 14, 2002 at 5:24 pm
    Feb 14, 2002 at 6:02 pm
  • I am stumped in determining the proper syntax for including displayed S code within an R .Rd documentation file, in places other than \examples{}. I have tried \code{ line 1 line 2 } but the lines ...
    Frank E Harrell JrFrank E Harrell Jr
    Feb 11, 2002 at 8:39 pm
    Feb 12, 2002 at 5:11 pm
  • Hi group, To mention it in advance, I am an R newbie, and most likely, my question is more a mix of smaller, simpler tasks. Anyway, I got mixed up between by, select, aggregate, lapply etc. My ...
    Alexander HenerAlexander Hener
    Feb 7, 2002 at 2:03 pm
    Feb 12, 2002 at 4:17 pm
  • Dear R users: I am a relatively experienced Splus user but new to R, using the version for Windows 2000. Splus allows the user to generate multiple graph pages in the graph window. For example, if ...
    Feb 11, 2002 at 5:20 pm
    Feb 12, 2002 at 5:32 am
  • Hi guys Recently a wanted to look at the opotunities which are suported by the labrary of tcltk. Unfortunatly I couldn't load the library and it occured the following error message: Error in ...
    Beat HugglerBeat Huggler
    Feb 6, 2002 at 8:09 am
    Feb 8, 2002 at 4:26 pm
  • Hi, To better organize a package, one sometimes wants to place some individual R files in R-ex directory (at least this is the way I understand the functionality of R-ex). But how does one organize ...
    Feb 1, 2002 at 11:32 pm
    Feb 4, 2002 at 7:31 pm
  • I just compiled R on my freebsd box. I don't see anything when firing it up with -g or --gui or --gui=X11, etc... only the standard prompt (see below). Is that what I should expect? I'm running the ...
    Kirk R. WythersKirk R. Wythers
    Feb 28, 2002 at 4:56 pm
    Feb 28, 2002 at 7:27 pm
  • hi, i just upgraded to R1.4.1 on a windoze 2000 machine. (i first uninstalled R1.3.1.) after running SetupR, i did packages/install from cran..., selected all packages, which appears to have ...
    Hiroyuki KawakatsuHiroyuki Kawakatsu
    Feb 26, 2002 at 9:45 am
    Feb 26, 2002 at 10:18 pm
  • Dear R users, Suppose i have an A square matrix rxr. I want to obtain a block matrix B (pxr,pxr) where the p diagonal blocks are A and the others values are 0. I would like to do something like ...
    Olivier MartinOlivier Martin
    Feb 26, 2002 at 12:09 pm
    Feb 26, 2002 at 7:12 pm
  • Just a quick question: Does anybody has a nice palette ( yes, I know that this isn't the right lattice-command) for lattice? I'm just making some graphs for a poster-presentation and I'm don't really ...
    Peter MalewskiPeter Malewski
    Feb 26, 2002 at 9:45 am
    Feb 26, 2002 at 3:20 pm
  • Another naive stats question. I'm trying to better understand what boxplots are telling me. I think what I see is the median and the boundaries of the 1st and 3rd quartiles. The whiskers represent ...
    Jay PfaffmanJay Pfaffman
    Feb 21, 2002 at 11:38 pm
    Feb 26, 2002 at 1:13 pm
  • 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 ...
    Meinhard PlonerMeinhard Ploner
    Feb 22, 2002 at 2:00 pm
    Feb 25, 2002 at 3:45 pm
  • Dear R People: Here is an interesting question(I think) Suppose I want to calculate Centered Moving Averages; i.e. x[1] <- ( sum(y[1:12]) )/12 x[2] <- ( sum(y[2:13]) )/12 and so on. Of course, this ...
    Erin HodgessErin Hodgess
    Feb 22, 2002 at 7:09 pm
    Feb 22, 2002 at 8:06 pm
  • 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 ...
    Meinhard PlonerMeinhard Ploner
    Feb 22, 2002 at 10:23 am
    Feb 22, 2002 at 5:45 pm
  • I've been trying to get plot.hclust to work with a hclust object I created and have not had much success. It seems that there is some "hidden" characteristic of a hclust object that I can't see. This ...
    Hugh ChipmanHugh Chipman
    Feb 20, 2002 at 6:31 pm
    Feb 21, 2002 at 1:13 pm
  • Hello everybody, I think my question has been asked before but I am posing it once again since I need it. Is there any way to find the rank of a matrix in R or Splus? Indrajit SenGupta Department Of ...
    Indrajit SenGuptaIndrajit SenGupta
    Feb 19, 2002 at 2:21 pm
    Feb 19, 2002 at 5:52 pm
  • Hello, I'm a new user of R, and unsure of why I'm getting an error reading external files on my Mac OS 10 machine. I've read through posts that would seem related (and 'R Import/Export' and ...
    Jason BoydJason Boyd
    Feb 15, 2002 at 8:04 pm
    Feb 19, 2002 at 4:39 pm
  • Hello, know somebody a "nice" strategy to analyze a lot of binary variables with hundred to thousands of cases. P.S. One nice example for this and something more is the configurational approach from ...
    Feb 18, 2002 at 10:34 pm
    Feb 19, 2002 at 2:51 pm
  • me again, new to R, haven't programmed in a long time at all sorry to ask what is probably basic a while ago i asked how to remove an element from a list apparently what i am using is not a list but ...
    Jimi adamsJimi adams
    Feb 18, 2002 at 1:26 pm
    Feb 18, 2002 at 6:11 pm
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Prof Brian Ripley: 88 posts Thomas Lumley: 31 posts Peter Dalgaard BSA: 28 posts Agustin Lobo: 23 posts Dirk Eddelbuettel: 14 posts Andrew Perrin: 13 posts Ben Bolker: 12 posts Uwe Ligges: 12 posts Mark Myatt: 11 posts Göran Broström: 10 posts Henrik Bengtsson: 10 posts John Fox: 10 posts Christian Hennig: 9 posts David R. Bickel: 9 posts Martyn Plummer: 8 posts Jason Turner: 7 posts Joerg Maeder: 7 posts Stuart Leask: 7 posts Bill Simpson: 6 posts Christian schulz: 6 posts
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