similar to: where "should" R be installed?

I am trying to work my way through the book "Singer, JD and Willett, JB, Applied Longitudinal Data Analysis. Oxford University Press, 2003" using R. I have the SAS code and S-Plus code from the UCLA site (doesn't include chapter 8 or later problems). In chapter 8, there is a structural equation/path model which can be specified for the sem package as follows S <- cov(al2)

Dear Group I have few errors while installing package rattle from CRAN i do the installing from the local zip files... I am using R 2.4.0 do i have to upgrade to R2.4.1 ? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ utils:::menuInstallLocal() package 'rattle' successfully unpacked and MD5 sums checked updating HTML package descriptions > help(rattle) No

Hello, I wanted to ask help about importing sas datasets. 1)I tried with some functions as read.ssd (foreign package), but it doesn't import the file if the length of the variables' names are longer than 8 bite (it has to conform to the 6 version). 2)I then tried with the sas.get function (Hmisc package) but with the command: c<- sas.get(lib="c:\\ghan",

Say I have a dataframe like this: df <- data.frame(cbind(c(1,0,0,1),c(0,1,0,0),c(0,0,1,0))) names(df) <- c('a','b','c') I would like to create a factor in a new column, where the factor values are taken from the column names, like this: > df2 a b c f 1 1 0 0 a 2 0 1 0 b 3 0 0 1 c 4 1 0 0 a How would I do this? Thanks, Dan Daniel Nordlund Bothell, WA USA

Dear Daniel and Jorge, Thank you very much and it does help. If I have a string "ABCD", how can I access the second element of the string "B"? Thanks, Miao 2012/7/27 Daniel Nordlund <djnordlund@frontier.com> > > -----Original Message----- > > From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org] > > On Behalf Of jpm miao

If I have two matrices like x <- matrix(rep(c(1,2,3),3),3) y <- matrix(rep(c(4,5,6),3),3) How can I combine them to get ? 1 1 1 4 4 4 1 1 1 5 5 5 1 1 1 6 6 6 2 2 2 4 4 4 2 2 2 5 5 5 2 2 2 6 6 6 3 3 3 4 4 4 3 3 3 5 5 5 3 3 3 6 6 6 The number of rows and the actual numbers above are unimportant, they are given so as to illustrate how I want to combine the matrices. I.e., I am looking for

Has anyone heard whether Revolution Analytics is going to release this capability to the R community? http://www.businesswire.com/news/home/20110201005852/en/Revolution-Analytics-Unlocks-SAS-Data Dan Daniel Nordlund Bothell, WA USA

When I type the following, I get results different from what I expected. > sprintf('%a',3) [1] "0x1.8" Shouldn't the result be [1] "0x1.8p+2" I read through the help ?sprintf and didn't find anything that changed my expectation. What am I misunderstanding? I am using R-2.9.0 binary from CRAN on Windows XP Pro, and my session info is >

When I type the following, I get results different from what I expected. > sprintf('%a',3) [1] "0x1.8" Shouldn't the result be [1] "0x1.8p+2" I read through the help ?sprintf and didn't find anything that changed my expectation. What am I misunderstanding? I am using R-2.9.0 binary from CRAN on Windows XP Pro, and my session info is >

Hi Dan, sorry for the precedent email, I created a csv file of only 1000 records by mistake, that's why R has only read 1000 records. regards Anna ----- Messaggio Inoltrato ----- Da : "a.martino at crismaitalia.it" <a.martino at crismaitalia.it> A : "Daniel Nordlund" <res90sx5 at verizon.net>,<r-help at stat.math.ethz.ch> Oggetto : RE: [R] importing

I am trying to resolve a problem I am having with running the rattle package on two different Windows 7 x64 systems. It appears to be a problem with my two specific systems, because others on Windows 7 x64 systems aren't complaining about this problem. What I am looking for is a method for trying to determine the source of the problem. Here is what I am experiencing. I had Rattle running

I am using R-2.10.1 binary from CRAN on a WinXP Pro system. I also use SAS v9.2 on the same box. I just started using the SAS ODBC driver that comes with version 9 of SAS. I have been able to set up an ODBC source for SAS datasets using the driver, and then with RODBC I am able to read a sample SAS dataset. > library(RODBC) > ch <- odbcConnect('sasodbc', believeNRows=FALSE)

I encountered the following problem in R-2.4.0 for Windows binary downloaded from CRAN (data from R-help post by Ethan Johnsons). I was also using the contributed binary Rblas.dll for Intel P4 chip. The problem doesn't occur with the default Rblas.dll. x=c(3.05176E-05, 0.000457764, 0.003204346, 0.0138855, 0.04165649, 0.09164429, 0.1527405, 0.1963806, 0.1963806, 0.1527405, 0.09164429,

I am running Ubuntu 7.10 and R-2.6.0, and I am having trouble updating packages. There appears to be a problem involving gfortran. For example, here is the output of an attempt to update the Hmisc package. * Installing *source* package 'Hmisc' ... ** libs gfortran -fpic -g -O2 -c cidxcn.f -o cidxcn.o gfortran -fpic -g -O2 -c cidxcp.f -o cidxcp.o gfortran -fpic -g -O2 -c

I have been working through the book "Applied longitudinal data analysis: modeling change and event occurrence" by Judith D. Singer and John B. Willett. I have been working examples using SAS and also using it as an opportunity for learning to use R for statistical analysis. I ran into some difficulties in chapter 8 which deals with using structural equation modeling. I have tried to

My apologies, I forgot to CC: to the list on my previous communication with Daniel. Jesse ----- Forwarded by Jesse Albert Canchola/EMVL/DIAG/US/BAYER on 08/21/2006 10:50 AM ----- Jesse Albert Canchola/EMVL/DIAG/US/BAYER 08/21/2006 09:36 AM To "Daniel Nordlund" <res90sx5 at verizon.net> cc Subject RE: [R] Permutations with replacement Thanks, Daniel. I need to enumerate

R-users, I am new user of Linux (have been using Win XP Pro) and wanted to install R. Since I am just beginning to learn Linux I was wondering, where in the directory structure do users of Linux usually install R? Most of the instructions I have read simply say to untar the tarball where you want to install the program. Any suggestions would be welcome as to an appropriate place. I know I

UseRs, I tried to install the MatchIt package on Ubuntu 7.04. When loading required dependencies I got the following error message: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library '/usr/local/lib/R/site-library/optmatch/libs/optmatch.so': /usr/local/lib/R/site-library/optmatch/libs/optmatch.so: cannot map zero-fill pages: Cannot

I have been asked to look at options for doing relative risk regression on some survey data. I have a binary DV and several predictor / adjustment variables. In R, would this be as "simple" as using the survey package to set up an appropriate design object and then running svyglm with family=binomial(log) ? Any other suggestions for covariate adjustment of relative risk

I've noticed a change in the way grep() behaves between the 1.9.0 release and a recent R-patched. On 1.9.0 I get the following output: > x <- dget(file = url("http://www.biostat.jhsph.edu/~rpeng/names.R")) > length(grep("^l\\w+tmean", x, perl = TRUE, value = TRUE)) [1] 84 And on R-patched (2004-06-11) I get > x <- dget(file =