Grokbase Groups R r-help October 2007
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879 discussions - 2,713 posts

  • Hi! I'm taking a course that requires some programming background, but I'm a complete novice in the field. when asked to generate a list of 20 uniform random numbers, is it alright if I put in randu, ...
    AzzzaAzzza
    Oct 15, 2007 at 5:21 am
    Oct 16, 2007 at 11:29 pm
  • Using Tinn-R (in windows) is possible to run latex and R from the same editor, which was great. Now, I am using Ubuntu-linux, which has been better than WinXP. Currently, I am using Emacs (and then ...
    Christian SalasChristian Salas
    Oct 5, 2007 at 4:56 pm
    Oct 11, 2007 at 8:30 am
  • Hey Seniors, Really new to R, please has anyone imported a dataset from MS office excel 2007 into R yet? It seem to be giving me hard times which I did not expect as it use to go well with the ...
    Arnold AkemArnold Akem
    Oct 16, 2007 at 1:38 pm
    Oct 19, 2007 at 9:44 am
  • Hello, I am new to R and I am trying to figure out how to print text output from an operation like table() to a pdf file. Is there a simple command to do this, or do you need to work with connections ...
    Jesse D LecyJesse D Lecy
    Oct 21, 2007 at 4:40 pm
    Jan 19, 2010 at 9:46 am
  • Hi all, I will be teaching a graduate-level course on R at CU Boulder next semester. I have a teaching idea that might also help improve the R wiki page... I wanted to know what you all thought of it ...
    Matthew KellerMatthew Keller
    Oct 21, 2007 at 11:44 pm
    Oct 24, 2007 at 3:14 am
  • Hi I create one pdf file with plots via pdf() and one text file with text via sink() that works very nice. But I would prefer to have one pdf file with plots and the text which I store in the te=xt ...
    Rainer M KrugRainer M Krug
    Oct 17, 2007 at 8:44 am
    Oct 17, 2007 at 1:54 pm
  • Hi, I am new to R and need to read in a file with 19 columns and 7000 rows and make it into a list of 7000 lists with 19 items each. For a simpler case of 10 by 10 table I used x <-scan("file", ...
    Tomas VaisarTomas Vaisar
    Oct 20, 2007 at 9:08 pm
    Oct 26, 2007 at 6:24 pm
  • Hi all, I've become quite enamored of R lately, and have decided to try to teach some of its basics (reading in data, manipulation and classical stats analyses) to my fellow grad students at the ...
    Matthew DubinsMatthew Dubins
    Oct 2, 2007 at 8:54 pm
    Oct 27, 2007 at 9:59 am
  • Hi, All, I try to accessing the x11() device over cgi - namely, when trying to create a graphic using the jpeg() function, everything is fine from the command line but it won't work over cgi, ...
    Zhang, Yongqing (NIH/NIA/IRP) [C]Zhang, Yongqing (NIH/NIA/IRP) [C]
    Oct 5, 2007 at 11:30 pm
    Oct 24, 2007 at 11:06 am
  • Hi, A have small technical question about the calculation of R-squared using lm(). In a study case with experimental values, it seems more logical to force the regression line to pass through origin ...
    Etienne ToffinEtienne Toffin
    Oct 18, 2007 at 11:02 am
    Oct 19, 2007 at 3:58 pm
  • I have the following R code to create a plot with two y axes. I am essentially trying to plot a price series with a volume series on the same graph. (i.e. to compare price with volume). I can label ...
    John ThealJohn Theal
    Oct 18, 2007 at 1:23 pm
    Oct 25, 2007 at 7:47 am
  • Dear All, Is there any package to do multi-objective optimization? For instance, consider the following problem: maximize f(x,y) in order to x and maximize g(x,y) in order to y, simultaneously, with ...
    Paul SmithPaul Smith
    Oct 17, 2007 at 5:54 pm
    Oct 18, 2007 at 2:56 pm
  • Hi, In the getGraphicsEvent function the (x,y) co-ordinates returned from the mouse move are in relation to where the mouse is located within the device window (i.e. the lower left corner of the ...
    Samuel KempSamuel Kemp
    Oct 9, 2007 at 10:59 am
    Oct 10, 2007 at 1:12 pm
  • When one has raw data it is easy to create a table of one variable against another and then calculate proportions For example a.nice.table<-table(a,b) prop.table(a.nice.table,1) However, I looked at ...
    Farrel BuchinskyFarrel Buchinsky
    Oct 2, 2007 at 3:19 pm
    Oct 3, 2007 at 11:28 pm
  • I have factors with levels ``Unit", "Achieved", and "Scholarship"; I wish to replace these with "U", "A", and "S". So I do fff <- factor(fff,labels=c("U","A","S")) This works as long as all of the ...
    Rolf TurnerRolf Turner
    Oct 3, 2007 at 4:57 am
    Oct 3, 2007 at 8:38 pm
  • sorry but how do i accsess r archives __________________________________________________
    Raymond chirukaRaymond chiruka
    Oct 19, 2007 at 9:36 am
    Oct 22, 2007 at 8:45 am
  • System: Linux kernel 2.6.15 Ubuntu dapper R version 2.5.1 ESS 5.2.11 on Emacs 21.4.1 ------------------------- Colleagues Having read the posts on producing perfect graphs in R, or using inkscape to ...
    Sam McClatchieSam McClatchie
    Oct 18, 2007 at 10:33 pm
    Dec 19, 2007 at 10:48 pm
  • Given a matrix B, where B=A'A, how can I find A? In other words, if I have a matrix B which I know is another matrix A times its transpose, can I find matrix A? Thanks, Mike
    Michael GormleyMichael Gormley
    Oct 31, 2007 at 8:13 pm
    Nov 1, 2007 at 8:58 am
  • Bear me if this is a naive question. I have a dataframe, all lists inside it are factors. When I use as.matrix(df) to convert, I get a character matrix while my intention is to get numeric matrix. I ...
    SunSun
    Oct 24, 2007 at 12:51 pm
    Oct 25, 2007 at 11:50 am
  • Hi all, I wrote a simple function that gives me multiple t.test results according to a subset variable and am wondering whether or not I reinvented the wheel. Observe: t.test.sub <- function ...
    Matthew DubinsMatthew Dubins
    Oct 22, 2007 at 10:30 pm
    Oct 23, 2007 at 1:22 pm
  • Hi, I am looking for an algorithm (better if it is implemented in R) which can do the following: from the following list: a,b,c,d a,b,c b,c a,b,c,d,e to calculate a,b,c,d: 2 a,b,c: 3 a,b: 3 a,c: 3 ...
    Weiwei ShiWeiwei Shi
    Oct 18, 2007 at 10:13 pm
    Oct 19, 2007 at 2:38 pm
  • Dear All Another one I have touched on before with a much older OS and version. My sessionInfo() is: R version 2.5.1 (2007-06-27) i686-redhat-linux-gnu locale ...
    michael watson (IAH-C)michael watson (IAH-C)
    Oct 15, 2007 at 1:38 pm
    Oct 16, 2007 at 9:46 am
  • I just noticed something by accident with R syntax that I'm sure is correct but I don't understand it. If I have a simple numeric vector x and I subscript it, it seems that I can then subscript a ...
    Leeds, Mark (IED)Leeds, Mark (IED)
    Oct 11, 2007 at 7:34 pm
    Oct 11, 2007 at 10:15 pm
  • Dear list, Given a list of elements like: aa <- list(one=c("o", "n", "e"), tea=c("t", "e", "a"), thre=c("t", "h", "r", "e")) Is there a function that returns the intersection between all? Both ...
    Adrian DusaAdrian Dusa
    Oct 6, 2007 at 7:49 pm
    Oct 7, 2007 at 5:09 pm
  • Hello, I have a question about how to plot a series of data. The folloqing is my data matrix of n 25p 5p 2.5p 0.5p 16B-E06.g 45379 4383 5123 45 16B-E06.g 45138 4028 6249 52 16B-E06.g 48457 4267 5470 ...
    Tiandao LiTiandao Li
    Oct 2, 2007 at 4:03 pm
    Oct 2, 2007 at 8:13 pm
  • Hello all, I discovered that the pdf device uses fonts to represent "points" symbols (as in plot(...,type="p",...) ). Namely it uses ZapfDingbats with symbol U+25cf. This can lead to problems when ...
    JihoJiho
    Oct 4, 2007 at 8:21 am
    Nov 1, 2007 at 8:18 pm
  • This must be very simple, but I'm stuck. I have a command line in R defined as a variable of a string of characters. How can I convert the variable so that I can execute it in R? Really appreciate ...
    Gang ChenGang Chen
    Oct 29, 2007 at 9:21 pm
    Oct 30, 2007 at 2:30 pm
  • Greetings, Cohen, Cohen, West, and Aiken 2003 (Applied Multiple Regression-Correlation Analysis for the Behavioral Sciences, Third Edition) on page 273 state the covariance matrix of the regression ...
    Peter B. MandevillePeter B. Mandeville
    Oct 29, 2007 at 5:30 pm
    Oct 29, 2007 at 9:37 pm
  • Hey guys, sorry for the inconvenience (this might be a hundred times answered question), but I have been searching a while and gave up about the following: I have the following, table and data: table ...
    Walter AliniWalter Alini
    Oct 23, 2007 at 8:17 pm
    Oct 24, 2007 at 3:37 am
  • Hi all, I am not a skillful R programmer and has I am handling with large dataframes (about 30000 x 300) I am in need of an efficient function. I have 4 dataframes with the same dimension. I need to ...
    Diogo AlagadorDiogo Alagador
    Oct 22, 2007 at 2:48 pm
    Oct 23, 2007 at 9:48 am
  • En indlejret tekst med ukendt tegns?t er blevet fjernet... Navn: ikke tilg?ngelig Url: https://stat.ethz.ch/pipermail/r-help/attachments/20071018/6fcb0c22/attachment.pl
    Klaus Friis ØstergaardKlaus Friis Østergaard
    Oct 18, 2007 at 7:31 am
    Oct 19, 2007 at 11:06 am
  • Lately I'm getting this error quite a bit: Error in La.svd(x, nu, nv) : error code 1 from Lapack routine 'dgesdd' I'm running R 2.5.0 on a 64 bit Intel machine running Fedora (8 I think). Maybe the ...
    Art OwenArt Owen
    Oct 17, 2007 at 6:06 am
    Oct 19, 2007 at 3:25 am
  • Hi there, I have a multiple for loop over a list of data frames for ( i in 1:(N-1) ) { for ( j in (i+1):N ) { for ( p in 1:M ) { v_i[p] = alist[[p]][i,"v"] v_j[p] = alist[[p]][j,"v"] } rho_s = ...
    Dieter BestDieter Best
    Oct 16, 2007 at 10:41 pm
    Oct 18, 2007 at 7:10 am
  • Hello everyone, I run R on Gentoo Linux and this week I upgraded R from 2.5.0 to 2.6.0. With the new build, I have stumbled upon an unpleasant problem: I can no longer install packages from CRAN ...
    Liviu AndronicLiviu Andronic
    Oct 16, 2007 at 1:41 pm
    Oct 17, 2007 at 5:24 pm
  • Dear listers, I'm using gam(from mgcv) for semi-parametric regression on small and noisy datasets(10 to 200 observations), and facing a problem of overfitting. According to the book(Simon N. Wood / ...
    神野有生神野有生
    Oct 3, 2007 at 5:55 am
    Oct 3, 2007 at 1:46 pm
  • Hi all users, I want to calculate angles from two vector using quaternion. I believe , it is possible using orientlib. Since I am not an quaternion expart, I need assistance to make sure I am not ...
    Abu NaserAbu Naser
    Oct 1, 2007 at 7:31 am
    Oct 2, 2007 at 7:04 am
  • I have been looking for a statistical package that I can implement in our application and I came across R. We run an n-Tier environment with an Oracle 10g backend. Our design is to keep all business ...
    JahJah
    Oct 30, 2007 at 6:57 pm
    Nov 9, 2007 at 12:36 am
  • Dear Sir I am facing problem in using traceWminim() function for cluster analysis. A sample of data frame that I am using is of the following form sitename lat long elev map 1 Dir 35.12 71.51 4675 ...
    Amna khanAmna khan
    Oct 7, 2007 at 5:09 pm
    Oct 29, 2007 at 12:45 pm
  • Hi, I am new to R and couldn't find any information on how to handle my table data that I just read in the way I want to use it.. I read in a table from a file: x <- read.delim("filenam", ...
    Bernd JaglaBernd Jagla
    Oct 25, 2007 at 5:07 pm
    Oct 25, 2007 at 6:38 pm
  • Hi all, I have a time series like that : Date Value 01/03/05 -0.008471364 01/04/05 -0.008153802 01/05/05 -0.000780031 01/06/05 -0.000130064 01/07/05 -0.000650576 01/08/05 -0.000130166 01/10/05 ...
    Megh DalMegh Dal
    Oct 24, 2007 at 1:11 pm
    Oct 24, 2007 at 3:41 pm
  • Hi, I looking for a graphic device on Linux with more functionalities than the X11 (). I find the plotAndPlayGTK package and the playwith function. It is a good device. It is possible to make it ...
    Ronaldo Reis JuniorRonaldo Reis Junior
    Oct 13, 2007 at 8:48 pm
    Oct 17, 2007 at 10:40 am
  • Hello Members, I try to convert variables in a data.frame (bract.awn) in the class ordered. str(bract.awn) 'data.frame': 348 obs. of 2 variables: $ ...
    Birgit LemckeBirgit Lemcke
    Oct 8, 2007 at 4:50 pm
    Oct 9, 2007 at 4:26 pm
  • I'm trying to get R to simulate the sum of the values on 10 fair dice (yes, it's related to a homework problem, but is not the problem itself). I tried to do this: [1] 341 341 341 341 341 341 341 341 ...
    Zembower, KevinZembower, Kevin
    Oct 8, 2007 at 5:50 pm
    Oct 8, 2007 at 10:55 pm
  • The following code should give me (at least that's what I think) two list boxes with their individual scrollbars. But instead both scrollbars stick to the same listbox even though they work as they ...
    Kapo coulibalyKapo coulibaly
    Oct 8, 2007 at 5:21 am
    Oct 8, 2007 at 5:33 pm
  • Education Age_Group Count 1 IncompleteHS 25-34 5416 2 IncompleteHS 35-44 5030 3 IncompleteHS 45-54 5777 4 IncompleteHS 55-64 7606 5 IncompleteHS 64 13746 6 CompletedHS 25-34 16431 7 CompletedHS 35-44 ...
    MajMaj
    Oct 7, 2007 at 3:52 am
    Oct 7, 2007 at 8:38 am
  • Hello, Does R have any facility to create a plot that looks similar to this: http://www.augustcouncil.com/~tgibson/barmatrix.jpg Thank you, -TAG Todd A. Gibson
    Todd A. GibsonTodd A. Gibson
    Oct 4, 2007 at 10:52 pm
    Oct 5, 2007 at 4:22 am
  • I have two vectors x and y, which I would like to plot against each other. I am also displaying other data in this plot. However, I have about 1 million points to plot, and just plotting them x ...
    Karin LagesenKarin Lagesen
    Oct 1, 2007 at 8:32 am
    Oct 2, 2007 at 8:06 pm
  • hi, i was trying to perform a function from the RDCOMClient package. to make it short: i tried to run the example in ?.COM, namely e <- COMCreate("Excel.Application") books <- e[["Workbooks"]] as ...
    Marcin KopaczynskiMarcin Kopaczynski
    Oct 3, 2007 at 12:59 pm
    Apr 29, 2012 at 3:05 pm
  • Hi list, When I was using 'silhouette' from the 'cluster' package to calculate clustering performances, R crashed. I traced the problem to the fact that my clustering labels only have 2's and 3's ...
    Tao ShiTao Shi
    Oct 10, 2007 at 12:35 am
    May 13, 2009 at 8:39 pm
  • hi, if I have 20 x 3 data.frame, how to split it into 10 x 6 (moving the lower part of 10x3 to column) or 5 x 12 thanks -- Weiwei Shi, Ph.D Research Scientist GeneGO, Inc. "Did you always know?" "No, ...
    Weiwei ShiWeiwei Shi
    Oct 29, 2007 at 3:44 pm
    Nov 3, 2007 at 11:14 am
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