Grokbase Groups R r-help March 2002
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293 discussions - 880 posts

  • Hi All, I am currently trying to use R to perform some statistical discriminant analysis on a data set using ANOVA. I'm new to anova and R as well. As I understand it, ANOVA can be used to perform ...
    Rishabh GuptaRishabh Gupta
    Mar 17, 2002 at 5:32 pm
    Mar 18, 2002 at 1:29 pm
  • If I am running a script in iESS...Can I stop it for a while, check the value of some variables and resume the execution of the script where I stopped it? ...
    Francisco J MolinaFrancisco J Molina
    Mar 16, 2002 at 3:27 am
    Mar 18, 2002 at 12:33 pm
  • hi, i want to plot percentage values using barplot. everything works fine so far. giving a chance level of 50% i want to plot only the area above 50 percent. i can of course cut using ylim=c(50,100) ...
    Jan Malte WienerJan Malte Wiener
    Mar 15, 2002 at 4:52 pm
    Mar 18, 2002 at 8:54 am
  • Hello, I'd like to translate de code below, write in octave, to R. I'm learning to operate R a few time ago, and an example of translation will be useful for me. This code is my lectures in an ...
    bertola_br (YAHOO!)bertola_br (YAHOO!)
    Mar 17, 2002 at 9:40 pm
    Mar 17, 2002 at 10:23 pm
  • Hi there -- I downloaded the MacOS X binaries of R and followed the instructions on installing it, and when I go to perform a tree function, I get the error "Error: couldn't find function "tree"". Do ...
    Jonathan GreenbergJonathan Greenberg
    Mar 17, 2002 at 6:18 am
    Mar 17, 2002 at 6:32 pm
  • Hello to all I've got a question concerning use of fonts while making plots in R. I wanted to know if it is possible for me to use polish letters in functions like text() title() etc. Looked up ...
    Michal BojanowskiMichal Bojanowski
    Mar 15, 2002 at 4:46 pm
    Mar 15, 2002 at 8:05 pm
  • Does R have a log window that will tell me how much time the software spent in implementing a procedure? For example, suppose I want to do regression with 100 thousand observations over 100 ...
    Jason ParconJason Parcon
    Mar 13, 2002 at 8:58 pm
    Mar 14, 2002 at 3:13 pm
  • Hi, I was just trying out an example on Page 247 of the MASS (Modern Applied Statistics with S-plus) book and saw the function "negexp.ival". It says it is supplied in the MASS library, however when ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Mar 13, 2002 at 8:23 pm
    Mar 13, 2002 at 9:30 pm
  • I need to read in a dataframe stored in a cvs file. The problem is I don't know how to tell R the first column (in format like "7-Jan-80") is a vector of dates. Could you help me, please? Thanks ...
    Lukas KubinLukas Kubin
    Mar 13, 2002 at 11:57 am
    Mar 13, 2002 at 1:48 pm
  • Hi All: Walter Moreira wrote a small extension module for using the R programming language from within Python. Tim Church's example at http://www.cmat.edu.uy/~walterm/rpy was so compelling, I could ...
    ArcriswellArcriswell
    Mar 11, 2002 at 5:13 pm
    Mar 12, 2002 at 11:23 am
  • Hello, I have a linear model with different slopes for different treatment groups. I need to pairwise compare the different slope estimates for the different treatment groups. Is there a package that ...
    John JanmaatJohn Janmaat
    Mar 10, 2002 at 10:36 am
    Mar 11, 2002 at 2:02 pm
  • Hello, I have a decent working version of that report writing library which I'm calling R Report Generator. For those who don't know, this is a small library I've been working on which lets you ...
    Zed ShawZed Shaw
    Mar 11, 2002 at 8:14 am
    Mar 11, 2002 at 9:23 am
  • Hello, I've just started R, and I'm getting a bit mad using it. I've managed to produce a barplot with the labels for the ytick marks placed horizontally (perpendicular to the y-axis) usiing ...
    Arne MuellerArne Mueller
    Mar 9, 2002 at 10:38 pm
    Mar 10, 2002 at 10:46 pm
  • Dear R-Helpers, Is there a way to draw shaded (filled) polygons in panel graphs produced by xyplot ? I made different trials (see below) with polygon() and grid.polygon() but polygons are not drawn ...
    Renaud LancelotRenaud Lancelot
    Mar 10, 2002 at 3:43 pm
    Mar 10, 2002 at 6:03 pm
  • Hi, I'm trying to combine a VBA macro and a R package. I've installed the R-(D)COM and the R-excel interface by Neuwirth. They seem to work both. However I would like to display the r-generated data ...
    NolwennlmNolwennlm
    Mar 7, 2002 at 8:36 am
    Mar 8, 2002 at 10:04 pm
  • i am trying to use the sample command and have one question about it: i am getting the error Error in sample(length(x), size, replace, prob) : insufficient positive probabilities when i use something ...
    Jimi adamsJimi adams
    Mar 8, 2002 at 12:05 pm
    Mar 8, 2002 at 5:05 pm
  • I'm quite new with R so sorry if I asked something very easy or complicated. I have a data frame with (for instance) 4 variables (4 columns) and 100 records. I would like to have a 'summary' table ...
    GfaietaGfaieta
    Mar 7, 2002 at 6:10 pm
    Mar 8, 2002 at 11:03 am
  • I'm using R 1.4.1 under Windows 2000 and am experiencing difficulty installing a package. I've included an example output using Rcmd build, but the same problem occurs with Rcmd check and Rcmd ...
    Tom KincaidTom Kincaid
    Mar 6, 2002 at 10:35 pm
    Mar 7, 2002 at 9:26 am
  • Could someone, please, write me an example how to apply the Hodrick-Prescott in R? Previously (in this list) someone mentioned it is possible using the smooth spline library. Thank you. lukas - -- ...
    Lukas KubinLukas Kubin
    Mar 6, 2002 at 8:16 pm
    Mar 7, 2002 at 12:05 am
  • Hi, how can I remove all R objects in the workspace out of a function? rm(list=ls()) doesn't work, and I've tried several pos arguments, but nothing worked. Thanks, Sven ...
    Sven GarbadeSven Garbade
    Mar 5, 2002 at 1:27 pm
    Mar 5, 2002 at 4:11 pm
  • Does identify work in lattice plots? I tried this in R 1.4.1 (original release) on my Win2000 machine with lattice 0.4-0 and grid 0.5-1. + panel=function(x, y, ...){ + panel.xyplot(x, y, col=2, pch , ...
    ApjaworskiApjaworski
    Mar 5, 2002 at 4:33 am
    Mar 5, 2002 at 7:16 am
  • Good Morning ! I am trying to run R on MacOS X using XFree86 4.2.0 when I try to run it, I get the following error message "dyld: /usr/local/lib/R/bin/R.bin version mismatch for library ...
    Bastian PETERBastian PETER
    Mar 4, 2002 at 9:19 am
    Mar 4, 2002 at 8:11 pm
  • Greetings all! Got another question for you: When doing regression, is there a way of automatically obtaining the standardized correlation coefficients? /Fredrik ...
    Fredrik KarlssonFredrik Karlsson
    Mar 4, 2002 at 2:04 pm
    Mar 4, 2002 at 5:38 pm
  • Hi all, suppose there is a vector y with rownames: cond1 cond2 cond3 cond4 78.952 87.308 86.490 74.040 how can I easily plot this vector using the rownames? plot(y) gives me a plot with a x-axis from ...
    Sven GarbadeSven Garbade
    Mar 4, 2002 at 2:32 pm
    Mar 4, 2002 at 3:30 pm
  • Dear R-help, I have a series of data.frames (i1,i2,...,in) all containing the same number of items, but dissimilar content. I would like to instal them in another data.frame, say index, so that I can ...
    Graham lawrenceGraham lawrence
    Mar 3, 2002 at 7:43 pm
    Mar 3, 2002 at 10:29 pm
  • I have installed R 1.4.0 on Windows 2000 and would like to upgrade to the newest version of R. I am scared of messing this up badly and would like to know if I should: - uninstall my current version ...
    GgrothendieckGgrothendieck
    Mar 3, 2002 at 3:24 am
    Mar 3, 2002 at 7:22 am
  • Dear list, I ran a mixed effect model using R 1.4.1 and SAS 8.0 on the SIMS data found in the SASmixed package and found that the degrees of freedoms for fixed effects are very different. From R, df ...
    Kaiya LiuKaiya Liu
    Mar 31, 2002 at 10:52 am
    Mar 31, 2002 at 10:21 pm
  • Hello!! At first thank you all for your suggestions and your help. But I would like to get another group of datas from the density estimation. I don't know if these information are provided by locfit ...
    Ralf KloessingerRalf Kloessinger
    Mar 31, 2002 at 2:37 am
    Mar 31, 2002 at 5:18 am
  • While downloading the R 1.4.1 for windows from the zip file, I downloaded a zip file rw1041m.zip which consisted of .Rd files. Could anybody tell what are these files for? Indrajit SenGupta ...
    Indrajit SenguptaIndrajit Sengupta
    Mar 30, 2002 at 4:43 am
    Mar 30, 2002 at 7:17 am
  • Hi all, I have some difficulties with the lme function and so this is my problem. Supoose i have the following model y_(ijk)=beta_j + e_i + epsilon_(ijk) where beta_j are fixed effects, e_i is a ...
    Olivier MartinOlivier Martin
    Mar 29, 2002 at 7:00 pm
    Mar 29, 2002 at 7:00 pm
  • Dear all, I dont know where I can find the 'Mean Square Error" function? Any hint would be appreciated. Best Regards -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- ...
    Nader EmamiNader Emami
    Mar 29, 2002 at 2:18 pm
    Mar 29, 2002 at 3:08 pm
  • Hi to all! Thank you for my previous question on how to make Tcl work. I did as suggested and it works now. I still have a problem when inputing special characters: I have a table with a column ...
    Ignacio PérezIgnacio Pérez
    Mar 29, 2002 at 1:56 am
    Mar 29, 2002 at 6:18 am
  • Dear all, I have a 100 iteration loop. Within each loop, there are some calls to rpart() like: ctl <- rpart.control(maxcompete=0, maxsurrogate=0, maxdepth) temp <- rpart(y~., x, w=wt, ...
    Ji ZhuJi Zhu
    Mar 29, 2002 at 2:07 am
    Mar 29, 2002 at 3:07 am
  • I apologize a priori if this is too basic. For my defense, I claim and assert I am reading the manuals. I have found this expression ab = double(length(a) + length(b) - 1))$ab in "writing R ...
    Francisco J MolinaFrancisco J Molina
    Mar 29, 2002 at 12:41 am
    Mar 29, 2002 at 1:12 am
  • I'm clustering using kmeans, and it doesn't accept NA. if NA occurs in a column of the data frame, it occurs in every column, including column 1. they say that a (good) programmer can write FORTRAN ...
    Barber, EricBarber, Eric
    Mar 28, 2002 at 10:30 am
    Mar 28, 2002 at 10:40 am
  • Hello Is there a simple way of fitting a 'smooth curve' to a time series with the additional constraint that the first derivative be not negative? I know that if I choose a "large enough" window for ...
    Claudia TebaldiClaudia Tebaldi
    Mar 27, 2002 at 11:28 pm
    Mar 28, 2002 at 10:04 am
  • Hi, I am trying to create a dotplot with dots (to represent a starting date) and lines to represent a length of stay. The code below works except the line I expect from the segments function. Almost ...
    Mitch DawsonMitch Dawson
    Mar 27, 2002 at 10:02 pm
    Mar 27, 2002 at 11:16 pm
  • Is there a (symbol-name foo) in R, which returns the name of a symbol as a string ? === Jan de Leeuw; Professor and Chair, UCLA Department of Statistics; US mail: 9432 Boelter Hall, Box 951554, Los ...
    Jan de LeeuwJan de Leeuw
    Mar 27, 2002 at 9:14 pm
    Mar 27, 2002 at 10:11 pm
  • Hello to everybody ! I don't have a question directly connected with R, but it takes starting point from the use of the R function Krig for kriging interpolation and from the idea of making a ...
    Lecca PaolaLecca Paola
    Mar 27, 2002 at 2:58 pm
    Mar 27, 2002 at 7:36 pm
  • Hi, Sorry for the question, but there is any package that contains the Naive Bayes classifier? Thanks Hugo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help ...
    Hugo MorganhoHugo Morganho
    Mar 27, 2002 at 2:02 pm
    Mar 27, 2002 at 3:20 pm
  • Hi, I am thinking about setting a service to provide R hosting on Linux. Would anyone be interested? The idea is that a machine would be available that would provide R, Apache, MySQL, Java, Perl, ...
    Liquid M1Liquid M1
    Mar 17, 2002 at 8:29 pm
    Mar 27, 2002 at 10:58 am
  • Hello R experten I have just written a little function to calculate all pairwise combinations of two vector arguments: [,1] [,2] [1,] 1 7 [2,] 1 8 [3,] 2 7 [4,] 2 8 [5,] 3 7 [6,] 3 8 I want to ...
    Robin HankinRobin Hankin
    Mar 26, 2002 at 9:18 pm
    Mar 26, 2002 at 10:07 pm
  • Dear R community, I am currently fitting non-linear models using nlm and nls. 1) I would like to compare the different models analogous to the comparison of linear models with anova(). Is there a ...
    Roland RegoesRoland Regoes
    Mar 26, 2002 at 8:42 pm
    Mar 26, 2002 at 9:26 pm
  • I was surprised when seq.POSIXt() returned a single value rather than a vector, from inputs that I thought were reasonable. Here's an example to illustrate: [1] "2002-06-24 00:00:10 PDT" ## traces to ...
    Don MacQueenDon MacQueen
    Mar 26, 2002 at 4:17 pm
    Mar 26, 2002 at 5:25 pm
  • I'm trying to install an R package that arrived in a package.tar.gz file. I use: R INSTALL -l /home/adele/packagedir package.tar.gz and I get: ERROR: cannot extract package from package.tar.gz The ...
    Adele CutlerAdele Cutler
    Mar 26, 2002 at 4:04 pm
    Mar 26, 2002 at 5:10 pm
  • Hi, exist a possibilty to work with more than one process like this,or in another way is it possible to start more than one time R (Win2000) and let run the process at one task and work interactive ...
    Christian SchulzChristian Schulz
    Mar 26, 2002 at 12:00 pm
    Mar 26, 2002 at 12:04 pm
  • Is there a function for MARS (Modeling with Automated Regression Tools) available for R PC window users ? I know there is a commercial package from Salford systems and there is a shared function for ...
    Nancy LoNancy Lo
    Mar 25, 2002 at 4:57 pm
    Mar 25, 2002 at 5:02 pm
  • Hi! Two questions: 1.-I am trying to put Tcl/tk to work. I keep getting the following: I've tried what is suggested on th R-FAQ and done what Professor Ripley recommended on a previous request ...
    Ignacio Perez VelezIgnacio Perez Velez
    Mar 25, 2002 at 4:28 am
    Mar 25, 2002 at 8:50 am
  • i installed mozilla 0.99 (i know, this is beta, not a released version) on win2k to test is as the browser for html help. it does not work. Help- R language (html) from the menu starts mozilla, but ...
    Erich NeuwirthErich Neuwirth
    Mar 25, 2002 at 12:17 am
    Mar 25, 2002 at 7:32 am
  • Is the behavior of "hist" in this sample of code correct. On my system (Windows 2K, SP2) the first and second bars are pushed together, while the 3rd, 4th, and 5th bars are correctly positioned. The ...
    Marc FeldesmanMarc Feldesman
    Mar 23, 2002 at 7:07 pm
    Mar 23, 2002 at 8:15 pm
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