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623 discussions - 1,810 posts

  • Dear all, I wanna to do multiple comparison test for proportions (multiple chi squre ?), could someone tell me how in R, thank you!
    Xingwang yeXingwang ye
    Jun 14, 2006 at 8:01 am
    Aug 3, 2006 at 9:04 pm
  • Dear All, I am looking for the best way to use graphs from R (like xyplot, curve ...) for a presentation with powerpoint. I used to save my plot as pdf and after to copy them as image in powerpoint ...
    Marc BernardMarc Bernard
    Jun 23, 2006 at 11:28 am
    Jun 26, 2006 at 10:33 am
  • Hi, Short Version: Is there a function to re-bin a histogram to new, broader bins? Long version: I'm trying to create a histogram, however my input-data is itself in the form of a fine-grained ...
    Justin AshmallJustin Ashmall
    Jun 8, 2006 at 9:46 am
    Jun 9, 2006 at 3:38 pm
  • Hi, I have to R fairly recently from Matlab, where I have been used to organising my own custom functions into directories which are adding to the Matlab search path. This enables me to call them as ...
    Rob CampbellRob Campbell
    Jun 19, 2006 at 9:36 am
    Jun 19, 2006 at 8:06 pm
  • I'm using FC4 and R 2.3.1 to fit a mixed effects logistic regression. The response is 0/1 and both the response and the age are the same for each pair of observations for each subject (some ...
    Rick BilonickRick Bilonick
    Jun 14, 2006 at 1:59 pm
    Jun 26, 2006 at 4:05 pm
  • Hello, Is there any software project that uses R to do log file analisys? thanks gabi
    Gabriel DiazGabriel Diaz
    Jun 10, 2006 at 6:31 pm
    Jun 13, 2006 at 8:17 am
  • Hi, I am trying to convert a dataset (dataframe) into time series object using ts function in stats package. My dataset is as follows: [1] 11.08 7.08 7.08 6.08 6.08 6.08 23.08 32.08 8.08 11.08 6.08 ...
    Sachin JSachin J
    Jun 26, 2006 at 1:07 pm
    Jun 26, 2006 at 3:30 pm
  • Hi, I'm trying to plot several lag.plots on a page, however the second plot replaces the first one (although it only takes up the upper half as it should): par(mfrow=c(2,1)) a<-sin(1:100) ...
    Gad AbrahamGad Abraham
    Jun 13, 2006 at 2:16 am
    Jun 14, 2006 at 11:32 pm
  • Hello, I have a problem with the sizes of points on the screen (Code tested for some R versions on a Solaris system and also for Linux). Maybe it is best to start with an example: If I do a very ...
    Robert OffingerRobert Offinger
    Jun 3, 2006 at 8:43 pm
    Jun 5, 2006 at 11:19 pm
  • Hi, I'm a group of functions and I would like to create a package for load in R. I have created a directory named INE and a directory below that named R, for the files of R functions. A have created ...
    Rita SousaRita Sousa
    Jun 1, 2006 at 10:40 am
    Jun 5, 2006 at 11:22 am
  • Dear R users, I would like to query a MySQL database through R. I have installed the latest required packages (RMySQL and DBI) in R (v2.3.1). A MySQL server (v5.0.22) is running on my local machine ...
    Stephane CRUVEILLERStephane CRUVEILLER
    Jun 27, 2006 at 7:19 am
    Jun 28, 2006 at 7:42 am
  • Is there any way to have xyplot produce the "points connected by lines" analogous to the effect of type="b" under standard graphics? I seem to recall doing this in xyplot at one point. Thanks, Ben
    Benjamin TynerBenjamin Tyner
    Jun 21, 2006 at 3:02 am
    Jun 23, 2006 at 2:53 am
  • 1. tar -zxvf R-2.3.0.tar.gz 2. changed the directory to the newly created directory R-2.3.0 3. Typed ./configure 4. Typed make make: *** No targets specified and no makefile found. Stop. I cannot run ...
    Pramod AnuguPramod Anugu
    Jun 28, 2006 at 1:34 pm
    Jun 30, 2006 at 5:27 pm
  • Folks, The contour() function wants x and y to be in increasing order. I have a situation where I have a grid in x and y, and associated z values, which looks like this: x y z [1,] 0.00 20 1.000 [2,] ...
    Ajay Narottam ShahAjay Narottam Shah
    Jun 25, 2006 at 1:33 pm
    Jun 27, 2006 at 1:11 pm
  • I hope someone here knows the answer to this since it will save me from delving deep into documentation. Based on 22 pairs of vectors, I have noticed that tetrachoric correlation coefficients in ...
    Janet RosenbaumJanet Rosenbaum
    Jun 23, 2006 at 5:42 pm
    Jun 25, 2006 at 9:41 am
  • Suppose I have two columns, x,y. I can use order(x,y) to calculate a permutation that puts them into increasing order of x, with ties broken by y. I'd like instead to calculate the rank of each pair ...
    Duncan MurdochDuncan Murdoch
    Jun 21, 2006 at 5:43 pm
    Jun 22, 2006 at 9:09 pm
  • Umm sorry to bother everyone again but I'm having trouble with my if statement. I come from a perl background so that's probably my problem! :) So here is my code: if (any(lgAB 4) | any(lgAB<-4)){ ...
    H. Paul BentonH. Paul Benton
    Jun 13, 2006 at 6:18 pm
    Jun 13, 2006 at 10:45 pm
  • type count 0 20 1 15 0 10 1 35 0 28 I would like to create two vectors from the data above. For example, type1=c(15, 35) and type0 = c(20, 10, 28). Can any one help Raphael
    Raphael FraserRaphael Fraser
    Jun 30, 2006 at 7:58 pm
    Jul 8, 2006 at 6:50 pm
  • Dear R-Users, Is it possible to get the covariance matrix from an lme model that did not converge ? I am doing a simulation which entails fitting linear mixed models, using a "for loop". Within each ...
    Pryseley AssamPryseley Assam
    Jun 28, 2006 at 4:18 pm
    Jul 1, 2006 at 4:42 am
  • Hi, I am revising a paper that I am a co-author of. The figures are plots generated from R but at the moment I do not have the R code that generates them. As this is time critical I would like to ...
    MajMaj
    Jun 29, 2006 at 5:15 am
    Jun 30, 2006 at 11:54 am
  • Dear list, sometimes my function generates too much data and shows them on screen, i cannot view first several lines until program ends and I have to scroll my mouse up to get them. Is there any ...
    Mike WolfgangMike Wolfgang
    Jun 29, 2006 at 2:28 am
    Jun 29, 2006 at 10:26 am
  • Dear R-users I have four simple linear models, which are all in the form of a*X+b The estimated parameter vectors are a <- c(1,2,3,4) b <- c(4,3,2,1) My goal is to draw a plot where x-axis is X ...
    Taka MatzmotoTaka Matzmoto
    Jun 27, 2006 at 12:21 am
    Jun 27, 2006 at 9:54 pm
  • I have set up an R procedure that is launched every three hours by crontab in a unix server. Crontab runs at regular intervals the following line: R CMD BATH myprog.R myprog.R (which by the way uses ...
    VittorioVittorio
    Jun 23, 2006 at 4:23 pm
    Jun 24, 2006 at 11:07 pm
  • At the encouragement of many at UseR, I'm trying to build my first real package. I have no C/Fortran code, just plain old R code, so it should be rocket science. On a Linux box, I used ...
    Jay EmersonJay Emerson
    Jun 22, 2006 at 4:08 pm
    Jun 23, 2006 at 6:26 pm
  • Dear R users! Does someone know about any algorithms / packages in R, that perform classification / regression / decision trees using multivariate splits? I have done some research, but I found ...
    Bálint CzúczBálint Czúcz
    Jun 19, 2006 at 2:17 pm
    Jun 22, 2006 at 9:17 am
  • I have a dataset at a hospital level (as opposed to the patient level) that contains number of patients experiencing events (call this number y), and the number of patients eligible for such events ...
    Hamilton, CodyHamilton, Cody
    Jun 16, 2006 at 5:31 pm
    Jun 17, 2006 at 7:44 am
  • Hi, I am running a simple linear model with (say) 5 independent variables. Is there a simple way of getting the variance-covariance matrix of the coeffcient estimates? None of the values of the lm() ...
    Ritwik SinhaRitwik Sinha
    Jun 2, 2006 at 9:17 pm
    Jun 3, 2006 at 11:03 pm
  • Hello R users! I like to use cat in a loop. I know, loops are not the best way in R ... but my question: It is possible to overwrite the expression "Reading row: i" in each iteration of the loop ...
    J?rn SchulzJ?rn Schulz
    Jun 29, 2006 at 8:03 pm
    Jun 30, 2006 at 7:11 am
  • Hi, Is it possible to find corresponding color code in R for the following RGB (R185, G35 & B80)? Thanks in advance. Best regards, Ezhil
    A EzhilA Ezhil
    Jun 26, 2006 at 4:17 pm
    Jun 26, 2006 at 4:54 pm
  • Dear R-help, Is there any wrapper avaliable to use IMSL C library functions within R? Thanks. Manoj
    ManojWManojW
    Jun 21, 2006 at 6:07 am
    Jun 22, 2006 at 12:41 am
  • Dear all, sorry, this is for sure really basic, but I searched a lot in the internet, and just couldn't find a solution. The problem is to create new variables from a data frame which contains both ...
    Stephan LindnerStephan Lindner
    Jun 20, 2006 at 8:42 am
    Jun 20, 2006 at 6:00 pm
  • One of the recurring themes in the recent UserR conference was that many people find it difficult to find the functions they need for a particular task. Sandy Weisberg suggested a small idea he would ...
    Hadley wickhamHadley wickham
    Jun 19, 2006 at 12:51 pm
    Jun 20, 2006 at 2:32 pm
  • Dear R-users, When a function f1() is called, is there a way to know, from inside the function f1(), if f1() is directly called from the R console, or indirectly from another function f2() ? Of ...
    VincentVincent
    Jun 19, 2006 at 9:53 am
    Jun 20, 2006 at 12:36 am
  • Hi List, I am new to this Rsoftware, i want to make a sereis for example which is having values like this, s<- 0,0.1,0.2,0.3,0.4........,1 i tryed this statement s<-0:0.1:1 but this giving an error ...
    Anil kumar rohillaAnil kumar rohilla
    Jun 14, 2006 at 6:17 am
    Jun 14, 2006 at 3:26 pm
  • Dear list, My apologies if a solution / explanation to this already exists on the list, but it is difficult to assign it to a certain keyword. test<-c(1:3) testfct <- function(x) {test[1]<-100} test ...
    Sebastian LeuzingerSebastian Leuzinger
    Jun 14, 2006 at 10:41 am
    Jun 14, 2006 at 1:13 pm
  • I am analysing parasite egg count data and am having trouble with glm with a negative binomial family. In my first data set, 55% of the 3000 cases have a zero count, and the non-zero counts range ...
    Elizabeth RainwaterElizabeth Rainwater
    Jun 9, 2006 at 3:54 pm
    Jun 12, 2006 at 8:38 am
  • Dear all, I'm currently working on correlation matrix. The function image() is quite useful for visualization. Before using image(), I'd like to sort the matrix rows/columns, in order to make the ...
    VincentVincent
    Jun 5, 2006 at 11:25 am
    Jun 9, 2006 at 5:47 am
  • Dear R-users, Just like other users (as seen from previous posts on the list), I would like to use female and male signs in plots. I found B. Ripley's post about using Unicode characters. However, it ...
    Hans GardfjellHans Gardfjell
    Jun 8, 2006 at 10:00 am
    Jun 8, 2006 at 9:13 pm
  • Dear R-list, I have made a simple kernel density estimation by x <- c(2,1,3,2,3,0,4,5,10,11,12,11,10) kde <- density(x,n0) Now I would like to know the estimated probability that a new observation ...
    Pedro RamirezPedro Ramirez
    Jun 7, 2006 at 5:00 pm
    Jun 8, 2006 at 7:30 pm
  • I was trying "quantreg" package, lm1 <- lm(y~x) rq1 <- rq(y~x) plot(summary(rq1)) #then got a warning says singular value, etc. but this line can be omited plot(lm1) #crash here It happened every ...
    Mu TianMu Tian
    Jun 7, 2006 at 7:32 pm
    Jun 7, 2006 at 9:07 pm
  • Hi, Is this intended behaviour of cbind? [1] 0 1 2 3 Levels: 0 < 1 < 2 < 3 [1] 1 2 3 Levels: 0 < 1 < 2 < 3 a [1,] 2 [2,] 3 [3,] 4 #cbind adds +1 to each element [1] 1 2 3 Levels: 1 < 2 < 3 a [1,] 1 ...
    Dirk VandekerckhoveDirk Vandekerckhove
    Jun 6, 2006 at 8:44 pm
    Jun 7, 2006 at 1:48 pm
  • Under R 2.3.1 for Windows (win xp) issuing gives: chron dts <- dates(c("02/27/92", "02/27/92", "01/14/92", "02/28/92", "02/01/92")) Error in dates(c("02/27/92", "02/27/92", "01/14/92", "02/28/92", ...
    VittorioVittorio
    Jun 8, 2006 at 3:03 pm
    Oct 26, 2011 at 11:25 pm
  • My second request of the day, sorry to be such a bother. Can you tell me whether Rosner's test for outliers is available in any of the R packages and, if so, which one? I've tried but I can't find ...
    Robert PowellRobert Powell
    Jun 13, 2006 at 8:47 pm
    Jul 7, 2006 at 12:52 pm
  • sent this to the list yesterday but didn't see it listed in the daily summary ... apologies if you receive it twice ... From: Afshartous, David Sent: Tuesday, June 27, 2006 10:02 AM To: '<span ...
    Afshartous, DavidAfshartous, David
    Jun 28, 2006 at 2:06 pm
    Jun 28, 2006 at 7:34 pm
  • Hello, Is there a way to compare the relative relevance of fixed and random effects in mixed models? I have in mind measures of effect size in ANOVAs, and would like to obtain similar information ...
    Bruno L. GiordanoBruno L. Giordano
    Jun 16, 2006 at 11:32 pm
    Jun 27, 2006 at 12:25 am
  • Hi Folks! I'm reading in some data from a .csv file that has a date column. How do I use colClasses to get read.csv to recognize the date column? The documentation on this seems to be nil - And yes, ...
    Kerpel, JohnKerpel, John
    Jun 21, 2006 at 7:50 pm
    Jun 21, 2006 at 8:20 pm
  • Dear All, I tried to plot a variety of lines(curves) on same figure. What I did is, plot(x=x1,y=y1) lines(x=x2,y=y2) lines(x=x3,y=y3) ... In my data, the maximum of y1 is much smaller than those ...
    Baoqiang CaoBaoqiang Cao
    Jun 21, 2006 at 4:22 pm
    Jun 21, 2006 at 6:11 pm
  • If object is user defined is: object$df.residual the same thing as df.residual(object) This is my first time to encounter the $ sign in R, I'm new. I'm reviewing "summary.glm" and in most cases it ...
    Davis, Jacob B.Davis, Jacob B.
    Jun 20, 2006 at 3:09 pm
    Jun 20, 2006 at 5:41 pm
  • Hi All, I would like to know, is there a *ballpark* figure for how many parameters the minimisation routines can cope with? I'm asking because I was asked if I knew. Cheers, Federico -- Federico C ...
    Federico CalboliFederico Calboli
    Jun 19, 2006 at 11:14 am
    Jun 19, 2006 at 6:47 pm
  • Dear All, A simple question: packages like fitdistr should be ideal to analyze samples of data taken from a univariate distribution, but what if rather than the raw data of the observations you are ...
    Lorenzo IsellaLorenzo Isella
    Jun 12, 2006 at 10:51 am
    Jun 19, 2006 at 2:41 pm
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Gabor Grothendieck: 93 posts Prof Brian Ripley: 84 posts Spencer Graves: 55 posts Duncan Murdoch: 40 posts Peter Dalgaard: 34 posts Petr Pikal: 33 posts Dimitris Rizopoulos: 30 posts Liaw, Andy: 27 posts Marc Schwartz (via MN): 24 posts Martin Maechler: 23 posts Markleeds: 21 posts Berton Gunter: 17 posts Joerg van den Hoff: 17 posts Sundar Dorai-Raj: 17 posts Jim holtman: 16 posts Thomas Lumley: 16 posts Uwe Ligges: 16 posts Chuck Cleland: 13 posts Rainer M Krug: 13 posts Ronggui: 11 posts
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