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812 discussions - 2,591 posts

  • Fellow Rers, Please forgive me if I have posted this to the wrong R list serve. Over the course of the years that I have used R and participated in this list server, I have noted a large number of ...
    John SorkinJohn Sorkin
    Nov 21, 2007 at 2:24 pm
    Nov 27, 2007 at 8:16 am
  • Greetings -- coming from Python/Ruby perspective, I'm wondering about certain features of R as a programming language. Say I have a huge table t of the form run ord unit words new 1 1 6939 1013 641 1 ...
    Alexy KhrabrovAlexy Khrabrov
    Nov 7, 2007 at 12:46 pm
    Nov 8, 2007 at 11:43 pm
  • Dear list, I need to read in a big table with 487 columns and 238,305 rows (row names and column names are supplied). Is there a code to read in the table in a fast way? I tried the read.table() but ...
    Affy snpAffy snp
    Nov 10, 2007 at 4:39 am
    Nov 11, 2007 at 11:04 pm
  • Since R is open source and help may come from varied levels of experience on R-Help, I wonder if it might be helpful to construct a method that can be used to "rate" those who provide help on this ...
    Doran, HaroldDoran, Harold
    Nov 30, 2007 at 8:12 pm
    Dec 5, 2007 at 8:56 am
  • Hi everyone! I've recently begun to learn R for my job as the IT department suffers from lack of funding for new software. I was talking to the guy in charge of Requisitions and have found out the ...
    MaxMax
    Nov 28, 2007 at 3:38 pm
    Dec 7, 2007 at 7:56 am
  • I am completely misunderstanding how to handle dates. I want to plot a couple of data series against some dates. Simple example 1 below works fine. Unfortunately I have multiple observations per day ...
    John KaneJohn Kane
    Nov 12, 2007 at 6:47 pm
    Nov 14, 2007 at 4:39 pm
  • Dear R users, is there a way to tell R where to draw the windows where the plots are drawn ? I always get that window on the right of my screen, where it interferes with my Xemacs + ESS window where ...
    8rino-Luca Pantani8rino-Luca Pantani
    Nov 6, 2007 at 12:43 pm
    Nov 8, 2007 at 9:39 am
  • I am using MS Excel (Windos Operating system), how I import/export data between MS_Excel and R. Regds Faisal Afzal SIddiqui +92-300-9297089 fasidfas at yahoo.com Never miss a thing. Make Yahoo your ...
    Faisal afzal siddiquiFaisal afzal siddiqui
    Nov 29, 2007 at 3:54 am
    Dec 8, 2007 at 6:32 pm
  • Dear R-users, The following code splits a very simple dataframe into a list, each element of the list being one line of the dataframe. You will see that the split function names each element of the ...
    PomchipPomchip
    Nov 24, 2007 at 11:15 pm
    Nov 27, 2007 at 1:41 pm
  • Dear All, With plot, one can use to the option 'axes=F' to remove axes. I have tried it with stripchart, but no success. How can one then customize the x-axis with stripchart? Thanks in advance, Paul
    Paul SmithPaul Smith
    Nov 24, 2007 at 10:42 pm
    Nov 25, 2007 at 4:33 am
  • Hello, I have a simple (?) simulation problem. I'm doing a simulation with logistic model and I want to reapet it 600 times. The simulation looks like this: z <- 0 x <- 0 y <- 0 aps <- 0 tiss <- 0 ...
    Sigalit mangut-leibaSigalit mangut-leiba
    Nov 12, 2007 at 8:18 pm
    Nov 15, 2007 at 8:55 pm
  • All, I'm trying to make a basic plot: data points superimposed upon the a line connecting the points w/ a different color. Example below doesn't work as the first xyplot call doesn't remain ...
    David AfshartousDavid Afshartous
    Nov 20, 2007 at 7:14 pm
    Nov 20, 2007 at 10:06 pm
  • Hello I have this problem. I have a large matrix of this sort: [,1] [,2] [,3] [,4] [1,] 3 3 3 3 [2,] 3 3 3 1 [3,] 1 3 3 3 [4,] 1 1 1 3 [5,] 3 1 1 3 [6,] 3 1 1 3 [7,] 1 3 1 3 [8,] 1 3 3 3 What I want ...
    A M LavezziA M Lavezzi
    Nov 15, 2007 at 2:51 pm
    Nov 20, 2007 at 2:09 am
  • Hi I have three vectors say x, y, z. One of them, x contains observations on a variable. To x I want to append all observations from y and remove all from z. For appending c() is easily used x <- ...
    Thomas FrööjdThomas Frööjd
    Nov 15, 2007 at 2:15 pm
    Nov 16, 2007 at 2:36 am
  • I initially thought, this should better be posted to r-devel but alas! no response. so I try it here. sory for the lengthy explanation but it seems unavoidable. to quickly see the problem simply copy ...
    Joerg van den HoffJoerg van den Hoff
    Nov 12, 2007 at 11:51 am
    Nov 13, 2007 at 11:01 am
  • Hi List, I'm running R2.5.1 on WinXP. Downloaded RMySQL_0.6-0.zip from http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.6/ and the installation seemed fine. However, when I tried to load the ...
    Tao ShiTao Shi
    Nov 15, 2007 at 8:06 pm
    Dec 21, 2007 at 9:58 am
  • Hallo, I have two vectors of different lengths which contain the same set of values: X < -c(2,6,1,7,4,3,5) Y <- c(1,1,6,4,6,1,4,1,2,3,6,6,1,2,4,4,5,4,1,7,6,6,4,4,7,1,2) How can I replace the values ...
    Serguei KaniovskiSerguei Kaniovski
    Nov 28, 2007 at 2:53 pm
    Nov 29, 2007 at 10:12 am
  • Dear All, Can R produce dot plots like the one of the following picture: http://en.wikipedia.org/wiki/Image:Dotplot_of_random_values.png ? I have tried dotchart, but no success. Thanks in advance, ...
    Paul SmithPaul Smith
    Nov 24, 2007 at 9:26 pm
    Nov 26, 2007 at 1:25 pm
  • Let's say I have a program that returns variables whose names may be any string within the vector NAMES=c("varA","varB","varC","varD","varE","varF"..."varZ"), but I do not ever know which ones have ...
    Steve PowersSteve Powers
    Nov 7, 2007 at 10:27 pm
    Nov 8, 2007 at 5:11 pm
  • Dear all, (Mac OS X 10.4.11, R 2.6.0) I have a quantitative dataset with a lot of Na?s in it. So many, that it is not possible to delete all rows with NA?s and also not possible, to delete all ...
    Birgit LemckeBirgit Lemcke
    Nov 23, 2007 at 3:42 pm
    Nov 28, 2007 at 5:38 pm
  • Dear all, I wonder if it is "bad style" (or something worse) to create an "update" function which does not work on model objects of the lm, glm etc. type. Specifically, I have some graph objects ...
    Søren HøjsgaardSøren Højsgaard
    Nov 20, 2007 at 12:01 pm
    Nov 20, 2007 at 5:55 pm
  • using an example from r online help "qld", "vic", "nsw", "vic", "qld", "qld", "sa", "tas", "sa", "nt", "wa", "vic", "qld", "nsw", "nsw", "wa", "sa", "act", "nsw", "vic", "vic", "act") now if i use ...
    Shoaaib MehmoodShoaaib Mehmood
    Nov 16, 2007 at 10:21 am
    Nov 19, 2007 at 7:32 pm
  • You can fit a linear probability model with glm and a bit of arm twisting. First, make your own copy of the binomial function: Edit it to change the function name to "mybinom" (or anything else you ...
    Terry TherneauTerry Therneau
    Nov 16, 2007 at 2:34 pm
    Nov 19, 2007 at 6:37 pm
  • I have a set data={A,B,C,D,E,F,G} I want to choose 2 letter from 8 letters, i.e. generate the combination set for choose 2 letters from 8 letters. I want to get the liking: combination ...
    AiminyAiminy
    Nov 15, 2007 at 4:51 am
    Nov 16, 2007 at 1:57 pm
  • Hi, I have setup a simple logistic regression model with the glm() function, with the follow formula: y ~ a + b where: 'a' is a continuous variable stratified by the levels of 'b' Looking over the ...
    Dylan BeaudetteDylan Beaudette
    Nov 13, 2007 at 9:59 pm
    Nov 14, 2007 at 6:03 pm
  • Hello, I using the fuction auto.arima() from package forecast to predict the values of p,d,q and P,D,Q. My problem is the execution time of this function, for example, a time series with 2323 values ...
    Joao SantosJoao Santos
    Nov 8, 2007 at 3:35 pm
    Nov 12, 2007 at 11:38 am
  • Dear list, I am new to R and very inexperienced. Sorry for the trouble. I have two txt files and want to merge them by taking the average. More specifically, for example, the txt file1, with row ...
    Affy snpAffy snp
    Nov 11, 2007 at 9:52 pm
    Nov 12, 2007 at 4:25 am
  • Dear list, I am wondering how to log-2 based transform a matrix with numeric values? I tried CGHlog2<-log2(CGH) but got an error. Then I found for log2(x) in R, the x has to be a numeric or complex ...
    Affy snpAffy snp
    Nov 10, 2007 at 2:25 pm
    Jun 10, 2011 at 1:37 pm
  • hi, is there a way of calculating of measuring dependence between two categorical variables. i tried using the chi square test to test for independence but i got error saying that the lengths of the ...
    Shoaaib MehmoodShoaaib Mehmood
    Nov 22, 2007 at 11:16 am
    Dec 7, 2007 at 7:46 am
  • Hi list, My data set is comprised of 47 columns and about 700 rows. Most of the values would be around 2, while some will go beyond in either direction, higher or lower. Is there a way to specify the ...
    Affy snpAffy snp
    Nov 30, 2007 at 10:09 pm
    Dec 4, 2007 at 9:15 am
  • How do I generate a value in R from a poisson distribution with mean 20? Thanks! -- View this message in context: http://www.nabble.com/Generating-a-value-tf4922234.html#a14086120 Sent from the R ...
    Alfieim29Alfieim29
    Nov 30, 2007 at 5:46 pm
    Dec 3, 2007 at 12:13 am
  • All, I recently made some changes to my package and ran R CMD check, but I am getting a warning regarding my data sets. I am running R 2.6.1 I have an image (.RData) file containing five data sets in ...
    Jonathan WeeksJonathan Weeks
    Nov 29, 2007 at 2:48 pm
    Nov 30, 2007 at 6:19 pm
  • Hi, I have two sets of data that I would like to put into a data frame. But since they have different length, I am not sure how to do this. Here is an example of my data: data set one: date growth ...
    Tom soyerTom soyer
    Nov 28, 2007 at 6:27 pm
    Nov 29, 2007 at 8:02 am
  • My question is a seemingly simple one. I have a bunch of user-defined functions which compute such-and-such objects. I want to be able to define a variable in a particular function, then make use of ...
    Thomas L Jones, PhDThomas L Jones, PhD
    Nov 26, 2007 at 5:11 pm
    Nov 27, 2007 at 5:01 am
  • Hi, R-users, data is a matrix like this AMR BS GE HR MO UK SP500 1974 -0.3505 -0.1154 -0.4246 -0.2107 -0.0758 0.2331 -0.2647 1975 0.7083 0.2472 0.3719 0.2227 0.0213 0.3569 0.3720 1976 0.7329 0.3665 ...
    Denver XUDenver XU
    Nov 24, 2007 at 2:07 pm
    Nov 26, 2007 at 9:23 am
  • Dear list, I want to combine several plots in one graph. I did this: plot(a1); plot(a2, add=TRUE); ...plot(a5, add=TRUE) The problem is the more plot we put, the more complex the graph. Is there any ...
    G IlhamtoG Ilhamto
    Nov 24, 2007 at 7:55 am
    Nov 26, 2007 at 7:19 am
  • I have three problems I am trying to simulate, that I am having difficulty getting around with. Problem 1. I want to determine the 85 percentile (the x value for which the sum of probabilities ...
    EpselonEpselon
    Nov 19, 2007 at 3:36 pm
    Nov 20, 2007 at 10:10 pm
  • Dear all, I'm using the "ape" package in R and want to draw a phylogenetic tree with not only the tip labels but also some labels for the edges. e.g. Mark the edge AB as "m" in the tree ABC. Couldn't ...
    Hua LiHua Li
    Nov 12, 2007 at 12:51 am
    Nov 16, 2007 at 8:43 pm
  • I have two data frame A and B adn want to cross them. A has format as: a1 a2 a3 1 2 3 2 3 1 1 3 2 ... B: b1 b2 1 2 2 1 ... the combine result shall be something like a1 a2 a3 b1 b2 1 2 3 1 2 1 2 3 2 ...
    SunSun
    Nov 13, 2007 at 11:49 am
    Nov 15, 2007 at 5:04 pm
  • Hello to everyone! I have a question for you..I need to predict multivariate time series, for example sales of 2 products related one to the other, having the 2 prices like inputs.. Is there in R a ...
    GiusyGiusy
    Nov 11, 2007 at 4:40 pm
    Nov 13, 2007 at 11:35 am
  • Dear All I am considering moving from SPSS to R as my stats environment of choice. I have read around and everything looks favourable. There is just one issue on which I have been unable to find ...
    Ivan UemlianinIvan Uemlianin
    Nov 10, 2007 at 11:04 am
    Nov 12, 2007 at 4:43 pm
  • hi, I am reading Modern Applied Statistics with S 4th ed$B!#(B page4 have these two lines: but I find withou the line " data(chem)" I can still access chem, isn't it? is it unnecessary or something ...
    EnvisageEnvisage
    Nov 8, 2007 at 3:26 am
    Nov 8, 2007 at 4:20 pm
  • Dear R users, I am having a problem with the main title of a plot. I have written a function returning a plot and I would like that the main title of this plot shows actually the name of the dataset ...
    MarciarrMarciarr
    Nov 30, 2007 at 2:05 am
    Nov 30, 2007 at 4:36 am
  • Hello, I tried to align lines of text in the legend of a plot. It always defaults to the central alignment. How can I adjust it to be left alignment? Here is the code fragment written in python using ...
    Wang, Zhaoming (NIH/NCI) [C]Wang, Zhaoming (NIH/NCI) [C]
    Nov 29, 2007 at 5:14 pm
    Nov 29, 2007 at 10:30 pm
  • Hi list, Is there a way to read in a txt file with some blanks? The ideal way could be to replace blanks with NAs. Thanks a lot! Allen
    Affy snpAffy snp
    Nov 28, 2007 at 11:46 pm
    Nov 29, 2007 at 4:12 pm
  • Tudor Bodea asked: Try this: res <- sqlQuery(channel, "select * from test_table where market = 'atl-bos'and competitor = 'delta' and dd = {d '2007-11-20'}") Microsoft variant of SQL has an odd date ...
    Baize, HaroldBaize, Harold
    Nov 13, 2007 at 4:26 pm
    Nov 29, 2007 at 6:05 am
  • Dear UseRs, I would like to know the created time and date of specific object. Is there any function for it? Thank you in advance. Sincerely,
    Dong-hyun OhDong-hyun Oh
    Nov 6, 2007 at 5:07 am
    Nov 29, 2007 at 5:18 am
  • Hello there Im suzuky Pinto from Mexico. And Im buying a new computer and this have windows vista. Could I have any problem using R on it? thabks Suzuky** Comparte video en la ventana de tus mensajes ...
    Suzuky PintoSuzuky Pinto
    Nov 27, 2007 at 9:40 pm
    Nov 28, 2007 at 3:33 pm
  • Hi, I am having trouble with a large dataset I am importing from SPSS. The problem is I have to merge two datasets (which seems to be working OK) then select rows based on attributes. I have a column ...
    Katherine JonesKatherine Jones
    Nov 26, 2007 at 8:07 pm
    Nov 27, 2007 at 8:52 am
  • Hi all Is there any compiler for R ? By compiler, I mean something that check the cleanliness of the code : if we declare all the variables we use, if we don't use external variable from a function ...
    Christophe GenoliniChristophe Genolini
    Nov 22, 2007 at 10:12 pm
    Nov 26, 2007 at 8:56 pm
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