similar to: Using S-Plus Documentation with R

Hello everyone, Can someone point me to some resources on managing data in R and/or S-plus? I have started using R more and more often in my work and I really like it. But, managing data is very different in R and S-Plus than in other packages that I am accustomed to. I know that it is an option to use different workspaces for different projects or to store all objects as source and read them

A while ago I asked about data management approaches in R. I was asked by several people to post a summary of the responses and alas I am just getting around to doing it. I received several comments, both on and off list. Below is a compilation of these responses. Hope this is as helpful to others as it was to me. Best, Brett 1. Frank Harrell recommended a section, "Operating in

Thanks to Brian Ripley for the time and effort put into developing the factanal package for R. I have found it very useful. However, in trying to replicate some results from previous research, I have run into the need for a couple of extensions and was wondering if they might find their way into future implementations. 1. Though maximum likelihood estimates might be more rigorous and

Is this text publicized? I ran across it doing an internet search. I have never seen any reference to it and it is not on CRAN under documentation. http://www.stat.lsa.umich.edu/~faraway/book/ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

A short function I wrote for the purpose of evaluating scales made up of a number of questionnaire items. It provides Cronbach's Alpha, both unstandardized and based on standardized items. It also provides item statistics which include item-total correlations (corrected) and item-removed alpha. Thought some of you might find it useful. I would also appreciate any programming tips or

Hello all, To anyone who is interested, I'm trying to learn a bit more about developing applications in R with user interfaces. I've been playing around with gWidgets to develop a model building interface. I'd appreciate any comments, suggestions, or guidance on how to better structure my R code and organize the programming task. In addition, any suggestions for features and

Does anyone know of code to conduct hierarchical (that is, multi-level) models using R. Beyond simply requiring a nested design, I want to model explicitly the covariance between levels as is done in such multi-level modeling software as HLM or MLwin and discussed in Goldestein (1999) available online at http://www.arnoldpublishers.com/support/goldstein.htm (a nice and free resource for anyone

Hello all, I am trying to read a table in via ftp, something like this: read.table("ftp://ftp.the.file.com/the/directory/file.txt") The trouble with that is, our ftp server is picky and wants my username and password. Oh, bother. My question: Is there a way to send user/pass and read the file into R? I am using R 1.5.1 on Windows 98. Thanks, Brett A. Magill, Evaluator

When updataing packages from CRAN, I got the following error message: updating HTML package descriptions Warning message: DLL attempted to change FPU control word from 8001f to 9001f Everything seems fine, the packages updated, just wondering what this was. R 1.6.2 on Windows 98. Details on the packages dowloaded are below. ________________________________________________ update.packages()

IIRC, the license stated in the source code of dataplot is rather restrictive. I don't think one is allowed to use the source as can be done with GPL code. Cheers, Andy > -----Original Message----- > From: Brett A Magill [mailto:Brett.Magill at slps.org] > Sent: Thursday, June 27, 2002 1:14 PM > To: r-help at stat.math.ethz.ch > Subject: [R] FW: re: GUI's for teaching

Are there any R packages that could be used to generate random data given a set of parameters? Or, if not a package, how would one generate such data? What I would like to do is simulate some sample data for a regression model given a set of population covariances and distribution parameters to be used in a MC simulation. Thanks for any tips. [[alternative HTML version deleted]]

Hello everyone, Thanks to all who offered suggestions after my initial query to the list. I've been busy trying to absorb the docs as fast as possible, but this little thing has me stumped for the moment. I'm creating a random sample of 100 item and saving it to a vector named 'iq'. I'd like to create a second vector (iq_prime, say) by adding 20 to each element of the

Hello everyone, Thanks to all who offered suggestions after my initial query to the list. I've been busy trying to absorb the docs as fast as possible, but this little thing has me stumped for the moment. I'm creating a random sample of 100 item and saving it to a vector named 'iq'. I'd like to create a second vector (iq_prime, say) by adding 20 to each element of the

I have a file in fwf. It is rather large, about 40,000 rows and 40 variables (columns). I only need about 10 variables form the data set for the analysis at hand. Unfortunately, these 10 variables are not contiguous in the file, for example, the first is position 1-8, the next position 25-27, then 40. Is there a way to read the selected varaibles that I need without reading in the entire data

Have a look at the GUI on dataplot, NIST's plotting software. It is implemented in tcl/tk. The site states it is "public domain software" -- open source? I can't find anything about the license. In any case... http://www.itl.nist.gov/div898/software/dataplot/ Brett A. Magill, Evaluator Research, Assessment, and Evaluation Saint Louis Public Schools Brett.Magill at

Hi all, I used to execute ftp in batch mode to dowload files. In my case, password authentication is the only way to get remote access. Could anyone tell me how can i accomplish the same task using sftp under batchmode as what i have done with ftp ? Meanwhile, how can i specify the password securely ? Is there anyother alternatives ? -- Thanks M.P

is there a dowload for mac users? __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

Are all audio pages in a Ogg/Vorbis stream the same size? do they have the same playback duration? I am developing a P2P streaming application where each client has to dowload the Ogg/Vorbis pages from other clients (peers) but I need to know how much time I have to download the next Ogg/Vorbis page before the playback reaches it. Something like numCurrPages = Total of Ogg Pages already

Sorry all for these two easy questions: First, I have a matrix with trhee columns: A= Name Eight Puntuation Pepe 1,85 10 Paco 1,7 7 Pablo 1,82 6 I want to scatter the two columns (I could use pairs or other functions...) but the only doubt is that I cannot find the way to add in the associated intersection (the point scattered) the label "Pepe" "Paco" and so

Hi all ! I began to develop Rails applications with Aptana Radrails under Windows. For that I had successfully installed auto_complete plugin and succeeded to use it. Now I have an iMac and I''m trying to restart my developments under OS X. My problem is: when I run the command ''script/plugin install auto_complete'', the result is: Plugin not found: