FAQ

Search Discussions

626 discussions - 2,030 posts

  • I would like to track in which journals articles about a particular disease are being published. Creating a pubmed search is trivial. The search provides data but obviously not as an R dataframe. I ...
    Farrel BuchinskyFarrel Buchinsky
    Dec 14, 2007 at 2:03 am
    Dec 19, 2007 at 9:22 am
  • Hello all, I'm trying to graph a scatterplot of a large (5,000 x,y coordinates) of data with the caveat that many of the data points overlap with each other (share the same x AND y coordinates). In ...
    Wayne Aldo GavioliWayne Aldo Gavioli
    Dec 18, 2007 at 1:14 am
    Dec 18, 2007 at 6:21 pm
  • $x93 [1] "1" "2" $x94 [1] "0" "1" "2" .................. so on (there are other dimensions as well) I need to access a particular dimension, but a random mechanism tells me which dimension it would ...
    Born To B WyldBorn To B Wyld
    Dec 18, 2007 at 11:01 am
    Dec 20, 2007 at 5:36 pm
  • Recently I came across an interesting web site: http://portableapps.com/. The idea is simple, this is software that is possible to install and run on some type of USB memory, a stick or one of these ...
    Tom Backer JohnsenTom Backer Johnsen
    Dec 4, 2007 at 4:03 pm
    Dec 5, 2007 at 7:32 pm
  • Dear list, I learned how to connect R to a local MySQL server, using: drv <- dbDriver("MySQL") con <- dbConnect(drv, user="root", password="mypass", dbname="mydb") Is it possible to connect R in this ...
    Adrian DusaAdrian Dusa
    Dec 14, 2007 at 6:55 pm
    Dec 19, 2007 at 6:12 pm
  • <posted & mailed Dear all, I'm trying to solve the problem, of how to find clusters of values in a vector that are closer than a given value. Illustrated this might look as follows: vector <- ...
    Johannes GraumannJohannes Graumann
    Dec 21, 2007 at 9:56 am
    Dec 22, 2007 at 8:16 pm
  • Hello all, I seem to be having a problem importing a data set from Excel into R. I'm using the "read.table" command to import the data with the following line of code: where "newborn edit.csv" is the ...
    Wayne Aldo GavioliWayne Aldo Gavioli
    Dec 12, 2007 at 3:15 am
    Dec 16, 2007 at 9:02 am
  • Hello, I'm still trying to make the life of my colleagues easier. Nice, isn't it ? At the moment, I'm looking for a way to generate multiple "single report". In fact I have a .rnw file which send a ...
    Ptit_BleuPtit_Bleu
    Dec 10, 2007 at 4:25 pm
    Dec 12, 2007 at 7:36 am
  • Hi, Does anyone know if R has a built-in function that is equvalent to Excel's percentrank, i.e., returns the rank of a value in a data set as a percentage of the data set? Thanks, -- Tom
    Tom soyerTom soyer
    Dec 1, 2007 at 11:37 am
    Dec 6, 2007 at 12:40 pm
  • Dear R-users. I eventually bought myself a new computer with the following characteristics: Processor AMD ATHLON 64 DUAL CORE 4000+ (socket AM2) Mother board ASR SK-AM2 2 Ram Corsair Value 1 GB DDR2 ...
    8rino-Luca Pantani8rino-Luca Pantani
    Dec 5, 2007 at 3:16 pm
    Dec 6, 2007 at 7:07 am
  • Dear R-Users, I would like to know whether it is possible to draw several stacked barplots (i.e. side by side on the same sheet)... my data look like : Cond1 Cond1' Cond2 Cond2' Compartment 1 11,81 ...
    Stéphane CRUVEILLERStéphane CRUVEILLER
    Dec 4, 2007 at 2:03 pm
    Dec 5, 2007 at 3:31 pm
  • Hi, I am trying a for loop from 1 to 100 by 1. However, if a condition does not get met, I want to "throw away" that iteration. So if my loop is for (i in 1:100) and i is say, 25 and the condition is ...
    Mike JonesMike Jones
    Dec 27, 2007 at 9:35 pm
    Dec 28, 2007 at 10:01 am
  • Hello, Could someone recommend a good book on regular expressions with focus on applications/use as it might relate to R. I remember there was a mention of such a reference book recently, but I could ...
    Christos HatzisChristos Hatzis
    Dec 11, 2007 at 3:46 pm
    Dec 12, 2007 at 3:18 pm
  • So a message from Benilton Carvalho (sent by r-help-bounces at r-project.org) arrives and goes in the Junk Mail even tho I have set @r-project.org to not be junk Why does this go in Junk mail if ...
    Loren EngravLoren Engrav
    Dec 4, 2007 at 1:56 am
    Dec 10, 2007 at 1:04 pm
  • I want to fit a fairly long main title for a plot, supposedly by changing row after a while. As for now it starts way outside the picture margin at the left and continues way out right passed the ...
    SvempaSvempa
    Dec 6, 2007 at 3:16 pm
    Dec 9, 2007 at 11:17 pm
  • Hi, I tried to stack two charts on top of each other using the following R functions: par(mfrow=c(2,1)) plot(rnorm(1:3),xaxt="n",xlab="") plot(rnorm(1:3)) This created two charts, one on top of the ...
    Tom soyerTom soyer
    Dec 31, 2007 at 4:53 pm
    Dec 31, 2007 at 8:33 pm
  • Hello list, I have a data frame M like: BAC chr pos s1 s2 RP11-80G24 1 77465510 -1 0 RP11-198H14 1 78696291 -1 0 RP11-267M21 1 79681704 -1 0 RP11-89A19 1 80950808 -1 0 RP11-6B16 1 82255496 -1 0 ...
    Affy snpAffy snp
    Dec 23, 2007 at 9:28 pm
    Dec 24, 2007 at 4:38 pm
  • lapply(1:length(myvector) function(.length) { c(myvector[1}:myvector[.length]) }) but test it because i didn't.
    MarkleedsMarkleeds
    Dec 18, 2007 at 8:50 pm
    Dec 18, 2007 at 11:09 pm
  • I've been trying for the past 3 weeks to use R (much better than Matlab but I am very bad with computers so I am very new to all of this) and know how to input the data (hey, it's a start!) but every ...
    EthanhaasEthanhaas
    Dec 12, 2007 at 9:26 am
    Dec 12, 2007 at 1:33 pm
  • I thought I would have another try at explaining my problem. I think that last time I may have buried it in irrelevant detail. This output should explain my dilemma: Min. 1st Qu. Median Mean 3rd Qu ...
    MajMaj
    Dec 9, 2007 at 5:28 am
    Dec 10, 2007 at 8:16 pm
  • Hello, I'm trying to integrate example data in the shape of a tab delimited ASCII file into my package and therefore dropped it into the data subdirectory. The build works out just fine, but when I ...
    Johannes GraumannJohannes Graumann
    Dec 6, 2007 at 10:18 am
    Dec 7, 2007 at 2:42 am
  • Pls advise how I can use R in conjoint analysis?? regds Faisal Afzal Siddiqui Karachi, Pakistan Looking for last minute shopping deals?
    Faisal afzal siddiquiFaisal afzal siddiqui
    Dec 6, 2007 at 8:00 am
    Nov 28, 2012 at 2:45 pm
  • Hi all. This is my first post in this forum. Finally I find a forum in the web about R, although is not in my language. Now I'm working with Bootstrap CI. I'd like to know how I can calculate a ...
    _Fede__Fede_
    Dec 30, 2007 at 7:45 pm
    Jan 3, 2008 at 8:48 am
  • Greetings, I wonder if anyone can offer any help or advice--even direction to an appropriate source of advice. I am trying to install rjags 1.0.1 on Mac OS X 10.5 (see ...
    Lindsay StirtonLindsay Stirton
    Dec 30, 2007 at 4:27 pm
    Jan 2, 2008 at 7:54 pm
  • R-users E-mail: <span class="m_body_email_addr" title="db55558cf5b0beb7e55ada18179dd273" r-help@r-project.org</span I have a quenstion on "gam()" in "gam" package. The help of gam() says: 'gam' uses ...
    Kunio takezawaKunio takezawa
    Dec 18, 2007 at 7:07 am
    Dec 25, 2007 at 1:59 am
  • After many hours of debugging code, I came to the conclusion that I have a fundamental misunderstanding regarding eval, and hope that someone here can explain to me, why the following code acts as it ...
    Charilaos SkiadasCharilaos Skiadas
    Dec 22, 2007 at 8:30 pm
    Dec 24, 2007 at 3:30 am
  • Hi all, Does anybody have a magic trick handy to isolate directly consecutive integers from something like this: c(1,2,3,4,7,8,9,10,12,13) The result should be, that groups 1-4, 7-10 and 12-13 are ...
    Johannes GraumannJohannes Graumann
    Dec 20, 2007 at 9:43 pm
    Dec 22, 2007 at 11:29 am
  • Hi everyone, I have a vector of strings, each string made up by different number of words. I want to get a new vector which has only the first word of each string in the first vector. I came up with ...
    Monica PisicaMonica Pisica
    Dec 13, 2007 at 1:41 pm
    Dec 13, 2007 at 11:30 pm
  • Hi, I´m trying to plot a nonlinear regresion with the confidence bands for the curve obtained, similar to what nlintool or nlpredci functions in Matlab does, but I no figure how to. In nls the option ...
    Florencio GonzálezFlorencio González
    Dec 4, 2007 at 11:06 am
    Dec 5, 2007 at 6:21 pm
  • Hi All, I am looking for a color palette like this: http://www.ncl.ucar.edu/Applications/Images/h_long_5_lg.png I think I found out how some time ago (something like Colors[1:n]), but when I now ...
    Linda SmithLinda Smith
    Dec 4, 2007 at 1:41 am
    Dec 4, 2007 at 8:55 pm
  • Hello, I'm trying to document this little package I'm working on and have the following issue: one of the man files (*.Rd) contains this bit \value{ Returns a \code{\link[base]{data.frame}} ...
    Johannes GraumannJohannes Graumann
    Dec 3, 2007 at 9:02 am
    Dec 3, 2007 at 1:21 pm
  • Hello all: I have a function that writes a fairly elaborate report based on some survey data. For documentation and bookkeeping purposes, I'd like to write out in the report the function call that ...
    Tom SgourosTom Sgouros
    Dec 2, 2007 at 11:24 pm
    Dec 3, 2007 at 12:49 pm
  • Hello R friends I am quite impressed by the power of R, I am using it only since some weeks now. But its visualizing capabilities are outstanding! But one thing I couldn't solve: I have programs ...
    Philipp FechtelerPhilipp Fechteler
    Dec 21, 2007 at 4:56 pm
    Jan 4, 2008 at 9:48 am
  • Hi Everyone, I've got a question about data representation. I have some psychometric data with 5 scores for 15 different groups. I've been asked to show some kind of mean plots. The data below is the ...
    MaxMax
    Dec 19, 2007 at 10:43 pm
    Dec 21, 2007 at 10:08 pm
  • Why is class(spectrum[["Ion"]]) after this "factor"? spectrum <- cbind(spectrum,Ion=rep("", nrow(spectrum)),Deviation.AMU=rep(0.0, nrow(spectrum))) slowly going crazy ... Joh
    Johannes GraumannJohannes Graumann
    Dec 19, 2007 at 1:17 am
    Dec 20, 2007 at 3:31 pm
  • Hi, I'm currently working with data that has values as large as 99,000,000 but is accurate to 6 decimal places. Unfortunately, when I load the data using read.table(), it rounds everything to the ...
    Wojciech GrycWojciech Gryc
    Dec 17, 2007 at 5:34 pm
    Dec 19, 2007 at 4:45 am
  • Dear R-users, I use R to run spatial stuff and it takes up a lot of ram. Runs can take hours or days. I am thinking of getting a new desktop. Can R take advantage of the dual-core system? I have a ...
    Kitty LeeKitty Lee
    Dec 17, 2007 at 9:01 pm
    Dec 18, 2007 at 9:29 pm
  • Hello, I gather variants of this question have been asked previously. I have done some reading but only became more confused, as I suspect what I am trying to do is more basic than other ...
    Bob GreenBob Green
    Dec 14, 2007 at 12:05 pm
    Dec 18, 2007 at 7:26 pm
  • Dear friends, regression towards the mean is interesting in medical circles, and a very recent paper (The American Statistician November 2007;61:302-307 by Krause and Pinheiro) treats it at length ...
    Troels RingTroels Ring
    Dec 17, 2007 at 6:21 pm
    Dec 18, 2007 at 5:54 pm
  • Hello everyone, I get some data in the following format and I would like to combine them to form a dataframe. The data is like: cbcname1 = 0.1, cbcname2= 0.2, cbcname3=0.3,... name1, name2, name2 are ...
    LiviaLivia
    Dec 13, 2007 at 2:11 pm
    Dec 17, 2007 at 11:20 am
  • Dear All, I want to analyse treatment effects with time series data: I measured e.g. leaf number (five replicate plants) in relation to two soil pH - after 2,4,6,8 weeks. I used mixed effects models, ...
    Ilona LeyerIlona Leyer
    Dec 13, 2007 at 10:15 pm
    Dec 17, 2007 at 8:31 am
  • Dear List-members, Hopefully someone will help through my confusion: In order to get the same coefficients as we get from the following ## require (MASS) summary ( lm(Gas ~ Insul/Temp - 1, data = ...
    Mark DiffordMark Difford
    Dec 12, 2007 at 10:05 am
    Dec 12, 2007 at 5:56 pm
  • Dear R-user; I recently switched from PC to MAC. Is there a compatible editor as Win-editor with package RWinEdit for MAC? Thanks Yihsu Chen
    YIHSU CHENYIHSU CHEN
    Dec 9, 2007 at 8:10 pm
    Dec 12, 2007 at 1:14 pm
  • Hi. I have a procedure that reads a directory, loops through a set of particular .RData files, loading each one, and feeding its object(s) into a function, as follows ...
    Talbot KatzTalbot Katz
    Dec 10, 2007 at 7:16 pm
    Dec 11, 2007 at 8:51 pm
  • I would like to make a new vector with values taken from two existing vectors conditional upon a third. At present I am doing this with a for loop but wonder if there is not a neater way, given some ...
    Neil StewartNeil Stewart
    Dec 10, 2007 at 11:41 pm
    Dec 11, 2007 at 1:30 am
  • Dear all, I'm having difficulty getting access to data generated by survfit and print.survfit when they are using with a Cox model (survfit.coxph). I would like to programmatically access the median ...
    Mark WardleMark Wardle
    Dec 9, 2007 at 11:11 am
    Dec 10, 2007 at 10:51 pm
  • I have a dataset with two variables that are factors: 1) Decision Making Satisfaction (DMS), values = A - Completely, B - Mostly, C - Partly, D - Not at all 2) IT Satisfaction values (ITS), values = ...
    Christopher snowChristopher snow
    Dec 6, 2007 at 12:51 pm
    Dec 8, 2007 at 6:17 am
  • Hi all- I have a dataset (year, month, hour, co2(ppm), num1,num2) [49,] 2006 11 0 383.3709 28 28 [50,] 2006 11 1 383.3709 28 28 [51,] 2006 11 2 383.3709 28 28 [52,] 2006 11 3 383.3709 28 28 [53,] ...
    Sherri HeckSherri Heck
    Dec 1, 2007 at 8:57 pm
    Dec 6, 2007 at 5:05 pm
  • Hi, The following error looks like a bug to me but perhaps someone can shed light on it: Error in qr.default(t(const)) : NA/NaN/Inf in foreign function call (arg 1) Thanks, Gad R version 2.6.1 ...
    Gad AbrahamGad Abraham
    Dec 4, 2007 at 11:58 pm
    Dec 6, 2007 at 12:07 am
  • We just studied randomized block design analysis in my statistics class, and I'm trying to learn how to do them in R. I'm trying to duplicate a case study example from my textbook [1]: lm), ...
    Zembower, KevinZembower, Kevin
    Dec 4, 2007 at 8:15 pm
    Dec 5, 2007 at 10:16 pm
Group Navigation
period‹ prev | Dec 2007 | next ›
Group Overview
groupr-help @
categoriesr
discussions626
posts2,030
users619
websiter-project.org
irc#r

619 users for December 2007

Gabor Grothendieck: 97 posts Prof Brian Ripley: 77 posts Duncan Murdoch: 50 posts Peter Dalgaard: 48 posts Jim holtman: 47 posts Hadley wickham: 34 posts Johannes Graumann: 28 posts John Kane: 26 posts Marc Schwartz: 25 posts Deepayan Sarkar: 22 posts Domenico Vistocco: 22 posts Moshe Olshansky: 22 posts Uwe Ligges: 22 posts Henrique Dallazuanna: 21 posts Ben Bolker: 20 posts David Winsemius: 18 posts Jim Lemon: 17 posts Dieter Menne: 16 posts Milton Cezar Ribeiro: 16 posts Charles C. Berry: 15 posts
show more
Archives