FAQ

Search Discussions

1,025 discussions - 3,688 posts

  • * What were your biggest misconceptions or stumbling blocks to getting up and running with R? * What documents helped you the most in this initial phase? I especially want to hear from people who are ...
    Patrick BurnsPatrick Burns
    Feb 25, 2010 at 5:31 pm
    Mar 26, 2010 at 4:11 am
  • Dear all, There have been a variety of discussions on the R list regarding the use of R in clinical trials. The following post from the STATA list provides an interesting opinion regarding why SAS ...
    Cody HamiltonCody Hamilton
    Feb 17, 2010 at 8:16 pm
    Feb 23, 2010 at 10:53 pm
  • Hi, I am using R in Linux environment. How can i make plot in Linux just like in windows? thanks
    XinweiXinwei
    Feb 19, 2010 at 6:39 pm
    May 15, 2014 at 7:56 am
  • Hello dear R users, *Here is the background for my question:* I just had a look at the help file for ? Yeast in the "HistData" package. In it, I found a small spelling mistake where the word ...
    Tal GaliliTal Galili
    Feb 28, 2010 at 10:44 am
    Mar 1, 2010 at 10:51 pm
  • Folks: I am trying to read in a large file. Definition of large is: Number of lines: 333, 250 Size: 850 MB The maching is a dual core intel, with 4 GB RAM and nothing else running on it. I read the ...
    Vadlamani, Satish {FLNA}Vadlamani, Satish {FLNA}
    Feb 5, 2010 at 1:27 am
    Feb 7, 2010 at 7:24 am
  • I'm sure I can put this together from the various 'apply's and split, but I wonder if anyone has a quick incantation: E.g. I can do tapply( data, groups, mean) but how can I do something like ...
    SjaffeSjaffe
    Feb 2, 2010 at 8:58 pm
    Feb 4, 2010 at 3:52 pm
  • It seems that Eq (2) in the vignettes for the 'contrast' packages is not correct. That is, the numerator on the right hand side should be $c' \beta$ rather than $c' \lambda$, right? If I'm correct, ...
    Peng YuPeng Yu
    Feb 3, 2010 at 4:42 am
    Feb 4, 2010 at 7:44 am
  • MY REQUIREMENT: I have a database and i want to connect to the database through R Project and using the tables from the database i need to generate the reports. can anyone plese tell me whether this ...
    ChinnaChinna
    Feb 22, 2010 at 10:38 am
    Feb 24, 2010 at 1:08 pm
  • Hi, I have a need to process (in real-time) a large number of .sas7bdat files from within R. The problem is I don't want to convert these files to .xpt (transport) every time. So just checking if ...
    Alex BryantAlex Bryant
    Feb 4, 2010 at 10:31 pm
    Nov 26, 2010 at 1:33 pm
  • Dear R users, I want to count the number of ones in a vector x. That's what I did : length( x[x==1] ) Is that a good solution ? Thank you very much, Randall
    Randall WrongRandall Wrong
    Feb 26, 2010 at 2:40 pm
    Mar 9, 2010 at 3:59 pm
  • Hi all, First off, it is surprising that there are no examples of how to use read.table() under ?read.table ! I am trying to read in a flat file of type 'raw'. It has 1000 rows and 600K columns. I ...
    Johan JacksonJohan Jackson
    Feb 11, 2010 at 3:36 pm
    Feb 12, 2010 at 2:53 pm
  • Dear R users, I've just posted a similar question about Illustrator. This time I would like to export the results of my statistic tables and my dataframes into Excel files. Up to now I've used ...
    Ivan CalandraIvan Calandra
    Feb 23, 2010 at 9:35 am
    Feb 25, 2010 at 11:25 am
  • Hello R users, I have been using R for a while now for basic stats but I'm now trying to get my head around looping scripts and in some places I am failing! I have a data set with c. 1200 data points ...
    RCullochRCulloch
    Feb 26, 2010 at 1:31 pm
    Mar 17, 2010 at 6:10 pm
  • I had occasion recently to read in a one-line *.csv file that looked like: "CandidateName","NSN","Ethnicity","dob","gender" "Smith, Mary Jane",111222333,"E","2/25/1989","F" That "F" (for female) in ...
    Rolf TurnerRolf Turner
    Feb 28, 2010 at 9:55 pm
    Mar 9, 2010 at 9:09 am
  • I'm struggling to find any help on this seemingly simple question - how does one read data with percentage (%) or currency (?,$ etc.) signs? When I try to read a data file which has any of those ...
    Hrishi MittalHrishi Mittal
    Feb 24, 2010 at 11:15 am
    Feb 25, 2010 at 9:12 pm
  • hi everyone, i am new to R project can anyone please help me by providing documents.... my goal is using R i have to connect to the database and i have to generate reports. Thanks in advance chinna ...
    ChinnaChinna
    Feb 22, 2010 at 7:49 am
    Feb 23, 2010 at 3:11 pm
  • -- ?????????? ?? ????????? ??????.?????: http://m.ya.ru/ymail
    Антон МорковинАнтон Морковин
    Feb 1, 2010 at 5:34 pm
    Feb 21, 2010 at 2:42 am
  • Dataframe closed contains balances of closed accounts: each row has month of closure (Date-type column month) and latest balance. I would like to plot by-month distributions of balances. A qplot call ...
    Dimitri ShvorobDimitri Shvorob
    Feb 14, 2010 at 6:55 pm
    Feb 17, 2010 at 2:54 pm
  • Hello, I am trying to learn how to perform Multiple Regression Analysis in R. I decided to take a simple example given in this PDF: http://www.utdallas.edu/~herve/abdi-prc-pretty.pdf I created a ...
    Something SomethingSomething Something
    Feb 13, 2010 at 12:54 am
    Feb 15, 2010 at 7:42 am
  • Hi, When I run the repeat loop in R for large dataset, I got Memory problem. How can I solve these problem. -- View this message in context: http://n4.nabble.com/Memory-Problem-tp1459740p1459740.html ...
    MeenakshiMeenakshi
    Feb 2, 2010 at 10:33 am
    Feb 8, 2010 at 4:35 pm
  • Hello, would someone please help explain the following inconsistency in the if/else statement to me? The format of the if/else #3 below is ok, but if/else #1 is not? (I get an "unexpected else" type ...
    EsmailEsmail
    Feb 15, 2010 at 2:01 pm
    Feb 16, 2010 at 5:59 pm
  • The following variables have the following significant relationships (x is the explanatory variable): linear, cubic, exponential, logistic. The linear relationship plots without any trouble. Cubic is ...
    Rhonda ReidyRhonda Reidy
    Feb 13, 2010 at 6:35 pm
    Feb 15, 2010 at 1:27 pm
  • Hello R-Help, I've got a bit of an issue with WMF's. I am working on WindowsXP and outputting WMF format images. I then take the WMF format images and insert them in PowerPoint. I take the PowerPoint ...
    Jason RupertJason Rupert
    Feb 10, 2010 at 12:16 pm
    Feb 11, 2010 at 1:51 pm
  • Hi; I posted this to the R-help last week, but there was no resolution.. Could anybody provide an idea, or alternatively direct me to another resource that might have ideas? -- I'm running R (ver ...
    JonathanJonathan
    Feb 3, 2010 at 8:46 pm
    Feb 4, 2010 at 6:14 pm
  • Hi, I have a data frame datas with half of the columns with the same name "A". I want to delete all those columns from the data frame so here is what I did: datas$A <- NULL The problem is that it ...
    AnnaAnna
    Feb 2, 2010 at 4:35 pm
    Feb 2, 2010 at 6:55 pm
  • Hi all! I am desperately trying to figure out the solution to this error, but nothing as of yet is working. As noted in an earlier post I am using GenABEL. In an attempt to read in the phenotype ...
    EuphoriaEuphoria
    Feb 24, 2010 at 9:14 pm
    Apr 14, 2012 at 4:00 am
  • Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?... Nom : non disponible URL : <https://stat.ethz.ch/pipermail/r-help/attachments/20100226/6ff97bd8/attachment.pl
    Dwayne BlindDwayne Blind
    Feb 26, 2010 at 4:10 pm
    Mar 1, 2010 at 3:43 pm
  • Hi all, I have a dataset of 2000 numbers ( it's noise measured with a scoop ) Now i want to know of my data is normal distributed (Gaussian distribution). I did already: - 68-95-99.7 test - Q-Q-plot ...
    BoskenBosken
    Feb 22, 2010 at 8:22 pm
    Feb 26, 2010 at 2:50 pm
  • Hi all, Is there a fast way to determine the number of lines in a file? I'm looking for something like count.lines analogous to count.fields. Hadley -- http://had.co.nz/
    Hadley WickhamHadley Wickham
    Feb 8, 2010 at 2:16 pm
    Feb 10, 2010 at 11:08 am
  • During some experimentation in preparing R lessons I encountered this behaviour which I can not explain fully mat <- matrix(1:16, 4,4) df1 <- data.frame(mat) X1 X2 X3 X4 2.5 6.5 10.5 14.5 Expected, ...
    Petr PIKALPetr PIKAL
    Feb 4, 2010 at 8:32 am
    Feb 4, 2010 at 11:52 am
  • I am using ggplot and posted this question at that helplist. It was suggested that I try a more general R-help list for a possible solution to this problem. Within ggplot, I am using geom_area with ...
    BluecuttlefishBluecuttlefish
    Feb 3, 2010 at 9:43 am
    Feb 3, 2010 at 7:45 pm
  • Dear All, I would like to count or list the names of the existing worksheets within an .xls file. Any hints? Thaks, Gabor -- Pozsgai G?bor www.coleoptera.hu www.photogabor.com
    Gábor PozsgaiGábor Pozsgai
    Feb 5, 2010 at 2:13 pm
    May 8, 2012 at 12:51 pm
  • Hullo I'm trying to read some time series data of meteorological records that are available on the web (eg http://climate.arm.ac.uk/calibrated/soil/dsoil100_cal_1910-1919.dat) . I'd like to be able ...
    Tim CooteTim Coote
    Feb 27, 2010 at 11:32 am
    Feb 28, 2010 at 3:11 am
  • Dear R users, I have a follow-up question on sqlSave(). Since most of the output from the tests I use are lists, I would like to loop to export each element of the list and append it to the sheet ...
    Ivan CalandraIvan Calandra
    Feb 24, 2010 at 3:17 pm
    Feb 25, 2010 at 2:29 pm
  • Hi Fellow R Users, I recently upgraded to Mac OS X 10.5 (Snow Leopard) and had some issues downloading and running R 2.10.1. I fixed the tcl/tk problem I was originally having but it was replaced ...
    Jessica JoganicJessica Joganic
    Feb 16, 2010 at 1:58 am
    Feb 17, 2010 at 5:19 pm
  • Hi all, I am using SPC techniques of plotting Xbar, R, S, P and C charts in R.For this I am using qcc package in R and also using the following document for reference ...
    VikrantVikrant
    Feb 4, 2010 at 6:26 am
    Feb 12, 2010 at 3:52 am
  • Dear experts, I would like to be able to interactively (if possible, with mouse and clik) edit point labels in graphs, particularly in multivariate graphs, such as the biplots you get after a ...
    Trece por cientoTrece por ciento
    Feb 3, 2010 at 7:57 am
    Feb 7, 2010 at 11:51 pm
  • I need to import several ascii files in fixed format with two different record types. The data comes from European Labor Force Surveys, wich is a household survey. The first record type is for people ...
    Trece por cientoTrece por ciento
    Feb 1, 2010 at 4:40 pm
    Feb 2, 2010 at 7:21 pm
  • Friends I can't quite find a direct answer to this question from the lists, so here goes: I have several dataframes, 200+ columns 2000+ rows. I wish to script some operations to perform on some of ...
    Jon Erik WeenJon Erik Ween
    Feb 25, 2010 at 1:18 am
    Mar 7, 2010 at 3:22 pm
  • Hi All, I have a character vector with naems of cities in the us. I need to extract the number that appear after the word "New York", for example, x<-c("P Los Angeles44AZ", "P New York722AZ", "K New ...
    KayjKayj
    Feb 26, 2010 at 6:27 pm
    Feb 28, 2010 at 9:44 pm
  • I guess my subject says it all. But I loaded a dataset in spss and used the foreign package to read and save it in R. Running an anova (using the aov command) gives a different F and p value in R ...
    ProtzkoProtzko
    Feb 11, 2010 at 2:47 pm
    Feb 25, 2010 at 11:45 pm
  • Hi to all, test <- data.frame("X"=c(1:4),"Y"=c(5:8),"Z"=c(8:11)) test <- test[,-2] Is there a way to specify the col name "Y" to delete instead the number? Kind regards Knut
    Knut KruegerKnut Krueger
    Feb 23, 2010 at 12:04 pm
    Feb 23, 2010 at 5:44 pm
  • I made the following example to see what are the difference between expression and quote. But I don't see any difference when they are used with eval()? Could somebody let me know what the difference ...
    Blue skyBlue sky
    Feb 19, 2010 at 5:42 pm
    Feb 21, 2010 at 8:34 am
  • Hello all, I have what i feel is a unique situation which may not be resolved with this inquiry. I have constructed the below data set so that i may give an example of what im doing. The example ...
    LCOG1LCOG1
    Feb 17, 2010 at 11:34 pm
    Feb 18, 2010 at 6:38 pm
  • Dear all, I have some trouble using the "id"-argument with aftreg (accelerated failure time regression analysis from the eha library). As far as I understand it, the id argument is used to group ...
    Philipp RappoldPhilipp Rappold
    Feb 5, 2010 at 10:30 am
    Feb 18, 2010 at 5:09 pm
  • Hello, When drawing "barcharts", I find it not helpful if ylim[1] != 0 - bars for a quantity of 0, that do not show a length of 0 are quite non-intuitive. I have tried to study but am unable to ...
    Johannes GraumannJohannes Graumann
    Feb 14, 2010 at 3:33 pm
    Feb 15, 2010 at 4:39 pm
  • Hi all, I have been hunting around for hours trying to figure out how to generate a stacked line chart using ggplot2. This type of chart can be generated in excel 2007 by selecting: Chart type Line ...
    Liam BlanckenbergLiam Blanckenberg
    Feb 8, 2010 at 4:40 am
    Feb 11, 2010 at 2:06 am
  • I am trying to get hourly totals, given 15-minute bins. s = seq(0, 95, 1) s = floor(s/4) # 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 . . . [1] 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 [26] 6 6 6 7 7 ...
    James RomeJames Rome
    Feb 7, 2010 at 6:08 pm
    Feb 7, 2010 at 7:23 pm
  • Dear R-helpers , I have a simple loop as follows, however, to be more efficient, I would like to use any apply functions (tapply, I suppose) But how can I do this ? I am not very clear about this. # ...
    Carrie LiCarrie Li
    Feb 5, 2010 at 2:51 am
    Feb 5, 2010 at 2:17 pm
  • Hi, I wanted to read in a table that had hyphens in the header / column names. When I read it in however, it replaces the hyphens with a dot. Which parameter in the read.table function do I need to ...
    Paul EvansPaul Evans
    Feb 3, 2010 at 9:08 pm
    Feb 3, 2010 at 9:59 pm
Group Navigation
period‹ prev | Feb 2010 | next ›
Group Overview
groupr-help @
categoriesr
discussions1,025
posts3,688
users903
websiter-project.org
irc#r

903 users for February 2010

David Winsemius: 215 posts Gabor Grothendieck: 99 posts Peter Ehlers: 80 posts Jim Holtman: 74 posts Greg Snow: 69 posts Duncan Murdoch: 66 posts Dieter Menne: 62 posts Uwe Ligges: 56 posts Jim Lemon: 52 posts Petr PIKAL: 46 posts Henrique Dallazuanna: 44 posts Sharpie: 42 posts Ivan Calandra: 38 posts Bluesky315: 29 posts Liviu Andronic: 29 posts Dennis Murphy: 28 posts Erik Iverson: 28 posts Ista Zahn: 28 posts Peng Yu: 27 posts Tal Galili: 27 posts
show more
Archives