Grokbase Groups R r-help June 2005
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644 discussions - 2,048 posts

  • Hello all, It seems that the next improvement to the R Graph Gallery is categorization of the graphics, that way each graph will be easier to find. That step should be done *carefully* if we want to ...
    Romain FrancoisRomain Francois
    Jun 6, 2005 at 12:32 pm
    Jun 10, 2005 at 3:13 am
  • Hello! I have an algorithm which performs lengthy operations and I would like to cache results. Other languages usually offer a dictionary data type which I can use as an efficient way to dynamically ...
    Sven C. KoehlerSven C. Koehler
    Jun 2, 2005 at 8:41 am
    Jun 2, 2005 at 7:42 pm
  • hi R folks, I need read a file from hardisk or www web. Then I need to define some new functions according to the contents of the read file. For example, i need write a package name "mypackage" like ...
    Hu ChenHu Chen
    Jun 7, 2005 at 12:50 pm
    Jun 9, 2005 at 9:09 pm
  • How can one convert back slashes to forward slashes, e.g, changing "c:\a\b" to "c:/a/b"? I tried the following: [1] "c:\a\b" Since this didn't work, I eliminated the replacement as a contributor as ...
    Spencer GravesSpencer Graves
    Jun 27, 2005 at 3:30 am
    Jun 29, 2005 at 10:16 pm
  • I defined an S4 class with a slot i. Then I wrote a regular function that attempted to increment i. This didn't work, apparently because of the general rule that a function can't change the values of ...
    Ross BoylanRoss Boylan
    Jun 4, 2005 at 12:04 am
    Jun 9, 2005 at 7:53 pm
  • Hi All, I am currently preparing some form of slideshow introducing R and its capabilities for some colleagues. The thing will be about 30 mins, and I'd like to have some "pretty pictures" and some ...
    Federico CalboliFederico Calboli
    Jun 24, 2005 at 2:38 pm
    Jun 28, 2005 at 2:58 pm
  • Hi, I have some problem when I tried to install R from source: work as root cd /root/dls/R-patched # this is where I unzip the file: R-patched_2005-06-08.tar.gz make clean # i need my ...
    Weiwei ShiWeiwei Shi
    Jun 13, 2005 at 3:57 pm
    Jun 14, 2005 at 4:26 pm
  • I want to include missing values in my barplot to get the correct x-axis, for example, x <- c(1,2,3,4, 9) y <- c(2,4,6,8,18) barplot(y) The above looks wrong because the last height in y should be a ...
    Dan BolserDan Bolser
    Jun 4, 2005 at 1:13 pm
    Jun 6, 2005 at 3:34 pm
  • Hello, When I try: geno <-read.table("2500.geno.tab",header=TRUE,sep="\t",na.strings=".",quote=" ",comment.char="",colClasses=c("factor"),nrows%01) I get, after hour(s) of work: Error: cannot ...
    Latchezar DimitrovLatchezar Dimitrov
    Jun 24, 2005 at 3:38 pm
    Jul 22, 2007 at 2:26 am
  • Hello again, First, thanks for the help that got the latest plotrix package finished. I had been planning to write something about packages since Scott Waichler offered the gantt.chart function. Then ...
    Jim LemonJim Lemon
    Jun 5, 2005 at 10:18 pm
    Jun 7, 2005 at 11:13 am
  • Hi I have been wondering if there one can speed up calculating small powers of numbers such as x^8 using multiplication. In addition, one can be a bit clever and calculate x^8 using only 3 ...
    Robin HankinRobin Hankin
    Jun 29, 2005 at 11:32 am
    Jun 29, 2005 at 6:55 pm
  • dear all: I want try the vgam function in VGAM library, but I'm stucked since I can't define the weights. This is because I dont understand well the concept of "matrix-band" (even after read the ...
    QuintaQuinta
    Jun 6, 2005 at 10:53 pm
    Jun 28, 2005 at 4:36 pm
  • Hi all, Does anybody know the easiest way to import excel data into R? I copied and pasted the excel data into a txt file, and tried read.table, but R reported that Error in ...
    Ling JinLing Jin
    Jun 22, 2005 at 11:46 pm
    Jun 23, 2005 at 8:28 pm
  • Hi, Excuse me for this simple question. How to convert as.data.frame to as.character? ?data.frame x y fac 1 XYZ A A 2 XYZ B A 3 XYZ C A 4 XYZ D A 5 XYZ E B 6 XYZ F C 7 XYZ G A 8 XYZ H C 9 XYZ I B 10 ...
    Muhammad SubiantoMuhammad Subianto
    Jun 10, 2005 at 12:23 pm
    Jun 10, 2005 at 5:30 pm
  • Hello, I'm using the random forest package. One of my factors in the data set contains 41 levels (I can't code this as a numeric value - in terms of linear models this would be a random factor). The ...
    Arne MullerArne Muller
    Jun 30, 2005 at 1:51 pm
    Jul 11, 2005 at 2:41 pm
  • This is slightly off-topic but I would be interested in whether anyone has succeeded in creating a filter expression for Google's gmail system that will select messages sent through the R-help and ...
    Douglas BatesDouglas Bates
    Jun 30, 2005 at 12:48 pm
    Jul 1, 2005 at 2:26 pm
  • Hello! I am performing coupling of chains in MCMC and I need the same value of seed for two chains. I will show demo of what I want: R code, which might show my example is: niter <- 3 nchain <- 2 ...
    Gorjanc GregorGorjanc Gregor
    Jun 8, 2005 at 1:27 pm
    Jun 8, 2005 at 7:45 pm
  • Dear Fellow R users, I am fairly new to R and am currently conducting a mixed model. I have 7 repeated measures on a simulated clinical trial If I understand the model correctly, the outcome is the ...
    StephenStephen
    Jun 20, 2005 at 8:29 am
    Jun 28, 2005 at 9:41 am
  • Hi I had a hard-to-find bug in some of my code the other day, which I eventually traced to my misusing of sweep(). I would expect sweep() to give me a warning if the elements don't recycle nicely, ...
    Robin HankinRobin Hankin
    Jun 20, 2005 at 9:32 am
    Jun 22, 2005 at 10:12 am
  • hi, i have another question on tapply: i have a dataset z like this: 5540 389100307391 2600 5541 389100307391 2600 5542 389100307391 2600 5543 389100307391 2600 5544 389100307391 2600 5546 ...
    Weiwei ShiWeiwei Shi
    Jun 20, 2005 at 11:15 pm
    Jun 22, 2005 at 8:13 am
  • i've search the email archives, searched the documention of various map packages and done an R-site search, but have been unable to find direct resources for creating maps of the US that are colored ...
    Mike RMike R
    Jun 10, 2005 at 10:18 pm
    Jun 15, 2005 at 11:28 am
  • Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1 Signif. codes: 0 <80 <98 ***<80 <99 0.001 <80 <98 **<80 <99 0.01 <80 <98 *<80 <99 0.05 <80 <98 .<80 <99 0.1 <80 <98 <80 <99 1 Signif. codes: 0 *** ...
    Dan BolserDan Bolser
    Jun 6, 2005 at 11:09 am
    Jun 9, 2005 at 1:48 am
  • I want to fit a multinomial model with logit link. For example let this matrix to be analyzed: male female aborted factor 10 12 1 1.2 14 14 4 1.3 15 12 3 1.4 (this is an example, not the true data ...
    Marc GirondotMarc Girondot
    Jun 10, 2005 at 8:44 pm
    Jun 13, 2005 at 7:14 am
  • Dear all, We have a large data set with temperature data for weather stations across the globe (15000 stations). For each station, we need to calculate the number of days a certain temperature is ...
    Sander OomSander Oom
    Jun 10, 2005 at 8:50 am
    Jun 12, 2005 at 12:37 pm
  • Hope everyone id doing great .. Just need some clarification over the limit of write.dta. I have some coauthors that use stata and I need to send them my data in .dta format. the data.frame is ...
    Jean EidJean Eid
    Jun 6, 2005 at 1:26 pm
    Jun 7, 2005 at 8:04 pm
  • This seems like a FAQ, but I can't figure it out. I have a mv ts object: R tsp(pg) [1] 1982 2003 1 R dim(pg) [1] 22 12 and a univariate ts: R tsp(rw) [1] 1690 1996 1 Yet, when I try to intersect ...
    Andy BunnAndy Bunn
    Jun 3, 2005 at 8:42 pm
    Jun 6, 2005 at 1:54 pm
  • Hi, when I run then the plot is plotted perfectly (scatterplot), however, the lm() function doesnt appear on the plot. What could be wrong? (Yesterday it worked perfectly, with the lm() line.) ...
    Mathias Hunskår FurevikMathias Hunskår Furevik
    Jun 2, 2005 at 1:19 pm
    Jun 2, 2005 at 6:12 pm
  • in a questionair i ask: Which of the following software packages do you use for data analysis? 1 R 2 S-Plus 3 SAS 4 SPSS 5 Stata 6 others (In this question, respondents are asked to mark the name of ...
    RongguiRonggui
    Jun 23, 2005 at 6:16 pm
    Sep 17, 2005 at 3:12 am
  • Hi, I asked this question before, which was hidden in a bunch of questions. I repharse it here and hope I can get some help this time: I have 2 contingency tables which have the same group variable ...
    Weiwei ShiWeiwei Shi
    Jun 24, 2005 at 2:59 pm
    Jul 10, 2005 at 3:19 pm
  • Hello, R gives us the correlation functions cor(). (Many thanks ;-)) Does it also exist a "moving correlation" coefficient ? (like the moving average). If not, could someone give me some infos or ...
    VincentVincent
    Jun 29, 2005 at 2:23 pm
    Jun 30, 2005 at 6:33 am
  • Hi, do anyone know which statistical software have the Brown-Forsythe Test for differences of numerical continue data groups wich variance heterogenity? not ofr evaluate the homogenity of variances, ...
    Jose Herrera BazánJose Herrera Bazán
    Jun 28, 2005 at 6:34 pm
    Jun 29, 2005 at 10:33 pm
  • I'd like to define a class with a chron slot, but: R require(chron) R setClass("myclass", representation(datetime = "chron")) [1] "myclass" Warning message: undefined slot classes in definition of ...
    Sebastian LuqueSebastian Luque
    Jun 22, 2005 at 8:50 pm
    Jun 23, 2005 at 3:01 pm
  • Dear all, I am currently trying to link R 2.1.0 to the GOTO BLAS 0.99.3 library on a box running Fedora Core 3 , basically following the steps indicated in the R-Admin document: 1: I downloaded the ...
    Stefan SobernigStefan Sobernig
    Jun 12, 2005 at 2:06 pm
    Jun 21, 2005 at 10:08 am
  • I need to compute generalized eigenvalues. The eigen function in base doesn't do it and I can't find a package that does. As I understand it, Lapack __can__ computer them ...
    Joshua GilbertJoshua Gilbert
    Jun 16, 2005 at 6:45 pm
    Jun 20, 2005 at 4:54 pm
  • k = c(1:9) if( length( which(k==3) ) ){ print("contained") }else{ print("not contained") } is therre a simple way to test if a vector/list contains a particular value? for example an operator, along ...
    Mike RMike R
    Jun 17, 2005 at 8:31 pm
    Jun 17, 2005 at 10:28 pm
  • Hi I'm having difficulty following the advice in section 2.7 of R-exts. In one of my packages, there is a function called mobius(). I want to refer to it in the Rd file as the M??bius function, and ...
    Robin HankinRobin Hankin
    Jun 15, 2005 at 11:13 am
    Jun 15, 2005 at 11:38 pm
  • Does anyone know a way to do the following: Save a large number of R objects to a file (like load() does) but then read back only a small named subset of them . As far as I can see, load() reads back ...
    Richard MottRichard Mott
    Jun 14, 2005 at 1:02 pm
    Jun 14, 2005 at 10:01 pm
  • test of thread behaviour this is the initial post
    Mike RMike R
    Jun 9, 2005 at 10:31 pm
    Jun 9, 2005 at 11:56 pm
  • hello, to use the function plot3d, i should use the package R.basic! plot3d {R.basic} If people know exactly a site to load this package, please give me the URL! Thanks Sabine ...
    Navarre SabineNavarre Sabine
    Jun 9, 2005 at 9:48 am
    Jun 9, 2005 at 10:57 am
  • Dear R-helper, How could I count only some variable was exist after running sample (random) function. For example, + x <- sample(testx,replace=TRUE) + print(x) + } [1] Money Money Time Internet Time ...
    Sofyan IyanSofyan Iyan
    Jun 1, 2005 at 3:05 pm
    Jun 2, 2005 at 10:31 am
  • Hi, I would to get the first letter of a word like: TitleCat 1 Training I would like T from Training! Thnaks a lot for your help Sabine --------------------------------- T��l��chargez le ici !
    Navarre SabineNavarre Sabine
    Jun 22, 2005 at 2:42 pm
    Jun 22, 2005 at 2:55 pm
  • Hello, i have a problem with the function nls(). This are my data in "k": V1 V2 [1,] 0 0.367 [2,] 85 0.296 [3,] 122 0.260 [4,] 192 0.244 [5,] 275 0.175 [6,] 421 0.140 [7,] 603 0.093 [8,] 831 0.068 ...
    Christfried KunathChristfried Kunath
    Jun 21, 2005 at 9:57 am
    Jun 21, 2005 at 3:02 pm
  • Hi, Am sure this is a trivial question but for some reason, haven't been able to figure it out. I want to bucket data in a vector, and then iterate over the buckets. Say the data set is: [1] 26 26 26 ...
    Uzuner, TolgaUzuner, Tolga
    Jun 20, 2005 at 12:50 pm
    Jun 20, 2005 at 1:03 pm
  • Greetings, Can anyone suggest me if we can vectorize the following problem effectively? I have two datasets, one dataset is portfolio of stocks returns on a historical basis and another dataset ...
    ManojWManojW
    Jun 16, 2005 at 12:45 am
    Jun 17, 2005 at 6:53 pm
  • Dear R-helpers, To get curves for a pseudo cohort other than the one centered at the mean of the covariates, I have been trying to use the newdata argument to survfit with no success. Here is my ...
    Hanke, AlexHanke, Alex
    Jun 15, 2005 at 6:17 pm
    Jun 17, 2005 at 12:02 pm
  • Is this an interface bug? Using RGUI for windows I run into a "Not Responding" process (I "smartly" coded an infinite loop, yaiks!), I hit esc and the interpreter was stopped and I recovered the ...
    Francisco J. ZagmuttFrancisco J. Zagmutt
    Jun 16, 2005 at 9:00 pm
    Jun 17, 2005 at 6:52 am
  • Hi all, for example: I want to draw a density distribution plot with a arrow pointer indicating the position of X0, meanwhile, giving out the p-value. any functions? Thanks very much.
    Hu ChenHu Chen
    Jun 15, 2005 at 2:40 pm
    Jun 17, 2005 at 3:25 am
  • high settle 1 5 3 2 2 4 What is the most abbreviated way to apply: if (p$high < p$settle) p$high = p$settle I want to modify p to become: high settle 1 5 3 2 4 4
    Omar LakkisOmar Lakkis
    Jun 15, 2005 at 5:59 pm
    Jun 17, 2005 at 3:02 am
  • 1. The function "KalmanLike" seems to change its inputs AND PREVIOUSLY MADE copies of the inputs. Consider the following (using R 2.1.0 patched under Windows XP): a P 1120 286379470 a P 798.3682 ...
    Spencer GravesSpencer Graves
    Jun 15, 2005 at 3:36 pm
    Jun 16, 2005 at 12:32 am
  • I have a program which is doing a few thousand runs of lm(). Suppose it is a simple model y = a + bx1 + cx2 + e I have the R object "d" where d <- summary(lm(y ~ x1 + x2)) I would like to obtain ...
    Ajay Narottam ShahAjay Narottam Shah
    Jun 14, 2005 at 1:03 pm
    Jun 15, 2005 at 9:29 am
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542 users for June 2005

Prof Brian Ripley: 128 posts Gabor Grothendieck: 114 posts Spencer Graves: 65 posts Uwe Ligges: 64 posts Liaw, Andy: 63 posts Peter Dalgaard: 46 posts Duncan Murdoch: 40 posts Douglas Bates: 30 posts Marc Schwartz (via MN): 30 posts Ronggui: 29 posts Mike R: 26 posts Thomas Lumley: 25 posts Dimitris Rizopoulos: 22 posts Sander Oom: 18 posts Weiwei Shi: 18 posts Achim Zeileis: 17 posts Berton Gunter: 17 posts Dan Bolser: 16 posts Jim Brennan: 16 posts Muhammad Subianto: 15 posts
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