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232 discussions - 678 posts

  • As nobody seems to answer my request, I simply post it again. Is there any reason why the r-help-mailinglist should not be converted to a newsgroup? These were the advantages of a newsgroup I ...
    Pesl ThomasPesl Thomas
    Sep 4, 2001 at 8:44 am
    Sep 6, 2001 at 12:10 pm
  • Dear R-collegues, I'm getting an error message (Error in round) when summarising a glm.nb model, and when using anova.negbin (in R 1.3.1 for windows): Call: glm.nb(formula = tax ~ areal, init.theta = ...
    Juli g. pausasJuli g. pausas
    Sep 25, 2001 at 4:30 pm
    Sep 27, 2001 at 7:42 pm
  • Dear List, I am looking for a possibility to fit a mixture model under R using maximum likelihood estimation. Venables and Ripley describe a solution working under S+ (in MASS, 3. ed., p. 263) which ...
    Jobst LandgrebeJobst Landgrebe
    Sep 3, 2001 at 7:10 pm
    May 3, 2002 at 11:10 am
  • Dear r-help, I want to conduct nonlinear fitting to a data frame having x and y variables. Because both x and y have measurement error, I want to include error term of x variable in the model. I'm ...
    Etsushi KatoEtsushi Kato
    Sep 12, 2001 at 6:42 am
    Sep 17, 2001 at 8:49 am
  • Hi, I asked this question 2 years ago, and would like to know if the answer has changed. In S-Plus, I build databases of many large objects. In any given analysis, I only need a few of those objects, ...
    David BrahmDavid Brahm
    Sep 27, 2001 at 11:03 pm
    Oct 1, 2001 at 7:02 pm
  • Hi there. R v1.3.0, Slackware linux 7.1 or Windows 98SE, PII 266, 64Mb RAM. I notice that under windows, R puts help info (ie. the response to '?<function ') into a new window, whereas under linux, ...
    Dr Stuart LeaskDr Stuart Leask
    Sep 18, 2001 at 10:27 am
    Sep 20, 2001 at 3:34 pm
  • Dear R and S users, I've been working on fitting finite mixture of negative exponential distributions using maximum likelihood based on the example given in MASS. So far I had much success in fitting ...
    Haifeng (Kevin) XieHaifeng (Kevin) Xie
    Sep 14, 2001 at 3:36 am
    Sep 14, 2001 at 3:36 pm
  • Are there any functions in R for fitting distributions? In particular, I would like to fit the weibull and extreme-value distributions when: i) the data are given and the maximum likelihood estimates ...
    Cowpertwait, PaulCowpertwait, Paul
    Sep 5, 2001 at 3:12 am
    Sep 10, 2001 at 6:53 am
  • I am in the process of setting up R1.3.1 on a new computer running windows 2000. I am having problems running the PFE text editor simultaneously within R for editing functions and outside R for ...
    Anne YorkAnne York
    Sep 27, 2001 at 9:12 pm
    Sep 29, 2001 at 4:42 pm
  • Hello, I have been trying to use by to create a means table, but receive the error " by(xx, list(subjs, cons, vowels), mean) Error in Summary.data.frame(..., na.rm = na.rm) : only defined on a data ...
    David WhiteDavid White
    Sep 24, 2001 at 3:55 pm
    Sep 24, 2001 at 8:46 pm
  • Hi, I have a simple question. I have a variable with 3 levels. Variable A A A A A A B B B B B B C C C C C C I need to make a new vector renaming de levels B and C for D. NewVariable A A A A A A D D D ...
    Ronaldo Reis Jr.Ronaldo Reis Jr.
    Sep 21, 2001 at 11:27 am
    Sep 24, 2001 at 2:40 pm
  • I'll be teaching a graduate course on (the analysis of) experimental designs next year, using R. Does anyone know of a suitable textbook? (Venables and Ripley MASS Ch6 on Linear Models covers roughly ...
    EacEac
    Sep 18, 2001 at 6:38 am
    Sep 20, 2001 at 2:12 pm
  • Hi, The screenshots page of the R-project contains nice 3d images: "3d plot of a surface" and "image and 3d plot of a volcano". What packages were used to generate these images? Or What packages have ...
    PawelPawel
    Sep 19, 2001 at 4:25 pm
    Sep 19, 2001 at 6:34 pm
  • I've looked through the FAQ and can't find anything about this. I'm working on a Sun machine, running Solaris 2.7. I'm a new R-user; have been using Splus for millenia, and finally decided it was ...
    Rolf TurnerRolf Turner
    Sep 5, 2001 at 7:01 pm
    Sep 6, 2001 at 5:28 pm
  • Hi, I'm trying to determine if R is useful to me. I've browsed 'The Basics of S and S-Plus' (Krause & Olson), and like the logic of the language. However, I don't see an easy way to do things like ...
    Robert D. MerithewRobert D. Merithew
    Sep 1, 2001 at 8:53 pm
    Sep 3, 2001 at 7:43 am
  • Hi, suppose I do: b <- matrix(1:9,3,3) bname <- "b" now dim(b) returns [1] 3 3 and dim(bname) returns NULL is there a function to pass bname to such that dim returns the dimensions of b? like ...
    David A RichmondDavid A Richmond
    Sep 28, 2001 at 9:23 pm
    Oct 5, 2001 at 7:43 am
  • What is a smarter way of doing: for(i in 1:xn) for(j in 1:yn) { im2[i,j]<- im[i,j]* (-1)^(i+j) } Thanks! Bill -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help ...
    Bill SimpsonBill Simpson
    Sep 26, 2001 at 9:04 am
    Sep 26, 2001 at 10:58 am
  • This is a recurrent question but could not find the answer in the documentation. I want to build a dll for windows from a fortran program to be loaded with dyn.load. I can do it easily for linux ...
    Victor MorenoVictor Moreno
    Sep 19, 2001 at 4:53 pm
    Sep 19, 2001 at 4:53 pm
  • In the windows version of R (1.3.0) is the following a bug, a known problem, or expected behavior: + for (j in i+1:3) { + print(j) + } + } [1] 2 [1] 3 [1] 4 ???? [1] 3 [1] 4 ???? [1] 5 ???? ...
    HEUMANN,JOHN (A-Loveland,ex1)HEUMANN,JOHN (A-Loveland,ex1)
    Sep 11, 2001 at 6:54 pm
    Sep 11, 2001 at 9:00 pm
  • Hello again! thanks to all who helped with overlay plots - v. easy in the end. Anyway, another new(ba)bee type question - the gurus will cringe I'm sure! Q. simple R function mm <- function (u) { x ...
    Gerard KeoghGerard Keogh
    Sep 10, 2001 at 3:17 pm
    Sep 11, 2001 at 3:20 pm
  • Hi, I would like to get a hint on how to debug in the case of # R CMD check pllib signalling * checking for code/documentation mismatches ... WARNING Error in parse(file, n, text, prompt) : syntax ...
    Christian HoffmannChristian Hoffmann
    Sep 6, 2001 at 7:13 am
    Sep 6, 2001 at 10:51 am
  • Hello R-list members, I�m trying to make a min-avg-max plot (like a boxplot, without box and outliers, i.e., for each class of "x" a vertical line indicating the range (max-min) and an horizontal ...
    AolintoAolinto
    Sep 25, 2001 at 2:45 pm
    Sep 29, 2001 at 3:42 pm
  • I wonder which binary codings to use for the different "special" values used in R. I want to create binary coded files of double, int, and string values that should get read into R using readBin ...
    Johann PetrakJohann Petrak
    Sep 28, 2001 at 9:17 am
    Sep 28, 2001 at 5:12 pm
  • All: I am getting an error code from the optimization function. The code is Error in optim(p,fun.LLike, lower=low, upper = up, method = "L-BFGS-B", : non-finite finite-difference value [0] If I add a ...
    Tony LongTony Long
    Sep 25, 2001 at 5:53 pm
    Sep 25, 2001 at 6:42 pm
  • R-Users, I trying to get greek symbols in the labels of a plot. This is successful in the title and in the x-label. But, not successful in the y-label. Is this a bug or am I missing something? For ...
    Calvin L. Williams, Ph.D.Calvin L. Williams, Ph.D.
    Sep 20, 2001 at 5:03 pm
    Sep 20, 2001 at 7:52 pm
  • Andy, Thanks. Note that DeVeaux's book, at www.williams.edu/Mathematics/rdeveaux/book/book.html, is marked "For use only by students of Math 244 Spring 2001, Williams College" and "DRAFT: do not ...
    EacEac
    Sep 20, 2001 at 12:03 am
    Sep 20, 2001 at 2:37 pm
  • Hi All, I'm trying to install R from source on an Intel machine running Linux (RedHat 6.2) and I am getting errors (Error 139, Error 2, and Error 1) on 'make check'. Perhaps I've forgotten something ...
    Fritz RothFritz Roth
    Sep 14, 2001 at 9:21 pm
    Sep 16, 2001 at 5:14 pm
  • Hi, I'm new to R, and trying to map stuff I knew how to do in Matlab to R. For instances, in matlab, sum(x) gave the column sums of matrix(/vector) x. In R it just gives the sum of all the elements, ...
    David A RichmondDavid A Richmond
    Sep 14, 2001 at 2:20 am
    Sep 14, 2001 at 7:50 am
  • I've created a bunch of postscript trees (post.rpart), which I subsequently edit in Adobe Acrobat 4.05 (I need additional labelling that isn't easy to add with R). After editing the labels and ...
    Marc R. FeldesmanMarc R. Feldesman
    Sep 13, 2001 at 3:56 am
    Sep 13, 2001 at 3:30 pm
  • Hi there, I've got this vector: -84 -87 -90 -90 -89 -86 NA NA NA NA NA NA NA NA NA NA NA NA -96 -99 -100 -99 -96 -92 -89 -87 -87 -88 -90 -92 -94 -95 -96 -97 -97 -97 -96 -95 Is there a function in R ...
    Sven GarbadeSven Garbade
    Sep 5, 2001 at 1:57 pm
    Sep 6, 2001 at 9:12 am
  • I wonder if there is a way to read in CSV files so that - certain fields within each record (line) are ignored, i.e. not converted to columns in the output data frame - factors/levels are created ...
    Johann PetrakJohann Petrak
    Sep 24, 2001 at 12:57 pm
    Oct 1, 2001 at 7:50 am
  • Dose anyone know if R can handle multithread processing? Regards, Harvey -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read ...
    Monder, HarveyMonder, Harvey
    Sep 26, 2001 at 5:27 pm
    Sep 28, 2001 at 2:31 pm
  • Hi, I understand work is being done to improve read.table(), especially by Prof. Brian D. Ripley. I offer below a version that I wrote, in the hope some aspects of it may prove useful or at least ...
    David BrahmDavid Brahm
    Sep 25, 2001 at 3:22 pm
    Sep 26, 2001 at 7:31 pm
  • Hi Everyone, Does anyone know how to take the output of a 2D fft() and shift the DC component to the center? Is there a function that does that? if you know, please send me an email. thanks for any ...
    Bradley loveBradley love
    Sep 24, 2001 at 3:04 am
    Sep 26, 2001 at 9:48 am
  • Hi All, I have a time series called 'upwelling', like this: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov 1984 494.7 303.7 220.8 288.4 188.1 125.5 215.7 1985 56.0 127.4 165.8 189.4 261.6 223.7 186.3 ...
    AntonioAntonio
    Sep 25, 2001 at 4:32 pm
    Sep 25, 2001 at 7:14 pm
  • G'Day, I'm a little confused why the c function has the followng effect on classes - is this a feature ? My workround [ class(cc) <- c("POSIXt", "POSIXct") ] seems to do the job. Many thanks Bernie ...
    Bernie McConnellBernie McConnell
    Sep 25, 2001 at 1:24 pm
    Sep 25, 2001 at 2:02 pm
  • On solaris 8 with forte 6.1 for F77 and CC. I try to configure I get the following message. checking whether f77 appends underscores... yes checking whether f77 and cc agree on int and double.. ...
    Govind VinjamuriGovind Vinjamuri
    Sep 24, 2001 at 9:49 pm
    Sep 25, 2001 at 1:49 pm
  • I am attempting to manually specify x axis value labels (NOT x axis label as in xlab) on a density plot. Generally speaking, I would like to erase the default x axis point labels and replace them ...
    Michaell TaylorMichaell Taylor
    Sep 24, 2001 at 8:58 pm
    Sep 25, 2001 at 9:18 am
  • I have just installed R on a Windows NT system. Unfortunately I am unable to open any of the data files I wish to work with. I have tried using read.table and scan and to the best of my knowledge am ...
    Scott, UrielScott, Uriel
    Sep 24, 2001 at 6:21 pm
    Sep 24, 2001 at 9:36 pm
  • this is my current answer to my own question. should we have such a funcion in a more general version (i.e. with an arbitraty number of argument lists, for n-ary functions) in the core language? ...
    Erich NeuwirthErich Neuwirth
    Sep 23, 2001 at 3:16 pm
    Sep 23, 2001 at 6:33 pm
  • Dear everybody, I have a following problem. I have a 3D array lambda <- array( dim=c(N,M,M-1)) where I have to extract the elements as follows: lambda[ 1, state[1], 1] lambda[ 1, state[1], 2] .. ...
    SiimSiim
    Sep 20, 2001 at 7:57 am
    Sep 20, 2001 at 1:00 pm
  • Hi, This is not an R question per ce, but I feel like this is a right community to ask it. As a part of our work we run a lot of non-interactive computational jobs. To increase the throughput we ...
    Vadim OgranovichVadim Ogranovich
    Sep 17, 2001 at 7:40 pm
    Sep 18, 2001 at 8:09 pm
  • I'm getting an error from nlme that has me stymied. I have a data set ,'mydata', with variables: AChE, Dose, sex, set, and mrid; 'set' and 'mrid' indicate two levels of nesting, with 'set' nested ...
    Setzer WoodrowSetzer Woodrow
    Sep 12, 2001 at 8:50 pm
    Sep 16, 2001 at 5:30 pm
  • Dear R people: I need to estimates some confidence intervals for one proportion. Reference for binom.test in ctest package, I suspect is so old and perhaps now there are better methods. Wrong or not? ...
    Luis A. IzquierdoLuis A. Izquierdo
    Sep 11, 2001 at 1:55 am
    Sep 12, 2001 at 2:35 am
  • Has R been ported to 64-bit platforms? E.g. as in FORTRAN when you define double precision number as: REAL*16 I have heard that some SUN computers already offer 64-bit architecture but I am unsure ...
    HelgitoHelgito
    Sep 11, 2001 at 11:32 am
    Sep 11, 2001 at 2:05 pm
  • Hi all I am experiencing some interesting results when I attempt to save graphical output to a file via "postscript". I am running R version 1.3.0 on a Mandrake 8.0 system under Xemacs 21.1.14 via ...
    Michael ManningMichael Manning
    Sep 11, 2001 at 12:24 pm
    Sep 11, 2001 at 12:24 pm
  • R colleagues, I am stumped. I would like the inter-tick distances to be the same on the x and y axes but cannot determine how to do so when the lower half of the y axis is not printed. Thanks for any ...
    niels Wallerniels Waller
    Sep 10, 2001 at 7:05 pm
    Sep 10, 2001 at 7:18 pm
  • Hello. I'm afraid that I'm missing something very obvious this afternoon... When I add a column to a data.frame (by assigning to a "new" column name a logical vector), I thought that I had (at least) ...
    Thomas VogelsThomas Vogels
    Sep 7, 2001 at 7:31 pm
    Sep 10, 2001 at 7:08 pm
  • Dear [R] people, I am looking for a method to test if there are any changes (jump points) in a time series data set or not. If there are, I would like to identify the jump points. All the data is ...
    Henrik BengtssonHenrik Bengtsson
    Sep 10, 2001 at 3:43 pm
    Sep 10, 2001 at 6:34 pm
  • OS: Win98 When using update.packages(), either directly or using the packages option at the top of the screen, I get the following messages. trying URL ...
    Dr. Stephan Martin RudolferDr. Stephan Martin Rudolfer
    Sep 6, 2001 at 4:30 pm
    Sep 10, 2001 at 4:09 pm
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