similar to: Latent class analysis

I am planning a project where an object-oriented approach would be appropriate, and for a number of reasons I would prefer using either Python or R. My problem at the moment is to find out how to do OO programming in R. Are there any introductory texts anywhere ? Tom -- +----------------------------------------------------------------+ | Tom Backer Johnsen, Psychometrics Unit, Faculty of

I am perfectly aware that this question is not an R question, at least not yet, but I have not succeeded in finding what I want in other ways, so ... What I am looking for are two algorithms, preferabley in Pascal, but other languages may do. For (a) systematic (complete) permutations for grouped data with unequal group sizes, and (b) random permutations for the same kind of data. I know

Do anyone know anything about the use of R for agent-based social simulation? It should be possible, and would be convenient for the simple reason that there are several nice packages containing useful stuff for SNA (Social Network Analysis). Information about packages, web sites, experienced persons in the field, etc. would be very welcome. Tom

I have just started looking at R, and are getting more and more irritated at myself for not having done that before. However, one of the things I have not found in the documentation is some way of preparing output from R for convenient formatting into something like MS Word. An example: If you use summary(lm(....)) you get nice output. However, if you try to paste that output into the word

I have started with using R on Windows, and I am really happy about the system. Now, one of my other ambitions is to learn how to use Linux, so yesterday I downloaded OpenSuse and installed that. The next problem was to try to use R with Linux. And there I met the wall. I've understood that RPM's are somewhat like installing programs on Windows, so that was downloaded and started

A few days ago there was a thread on calling R from Delphi to which there were several useful responses. Now I responded as well, with what I regard as a useful contribution. Shortly after that, I was not able to able to see the thread in my newsreader (Thunderbird). Suddenly, yesterday I could see the thread again, and now it has vanished, at least from my sight. Now. Is there an error

Me and some colleagues are planning to write a textbook together ("Statistics using R") where the target audience for the book is psychologists and students of psychology. We thought that it might be a good idea to use a Wiki when writing the text. Is that a good idea? Does anybody have any experience in that direction? What alternatives are there? The tool (Wiki) would have to be

Erin Hodgess wrote: > Date: Mon, 05 Jun 2006 08:05:04 +0200 > From: Tom Backer Johnsen <backer at psych.uib.no> > User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) > MIME-Version: 1.0 > To: r-help at stat.math.ethz.ch > References: <4481F48B.6090308 at imst.math.uni-magdeburg.de> > In-Reply-To: <4481F48B.6090308 at imst.math.uni-magdeburg.de> >

R-users At the moment I am teaching a course on the use of R for data analysis. Part of course requirements involves the transfer of results from R to something that resembles the APA (American Psychological Associations) type tables to MS Word. Until now I have used the HTML function in the R2HTML library, with a call like this: HTML(summary(model1), file("clipboard",

Tom: Supposse your Excel file is named "myExcelFile" Open myExcelFile and SaveAs "myExcelFile.csv" or "myExcelFile.txt" Then go to the RConsole and type: #Option # 1 mydata <- read.csv("PathTomyExcelFile.csv",header=T) mydata # You should be able to see your dataset in R # Option # 2 # If you saved your Excel file as text then you would do: mydata

Hello, I have a problem with the sizes of points on the screen (Code tested for some R versions on a Solaris system and also for Linux). Maybe it is best to start with an example: If I do a very simple plot using the character '.' for the points, e.g., n<-100; plot(0:n,0:n,pch='.',cex=1+(0:n)/20) then not all for all the points the horizontal and vertical dimensions are the

Gentlepersons: A long time ago I used to be able to start R (version 2.6.1) from a Delphi 7 program and run a script by using a procedure like the following: function StartRAndWait (CommandLine : string) : Boolean; var Proc_info: TProcessInformation; Startinfo: TStartupInfo; ExitCode: longword; CreateOK : Boolean; begin Result := False; { Initialize the structures }

Or just go Quantian and be happy: It has R and most of CRAN and BioC packages included. http://dirk.eddelbuettel.com/quantian.html Andy From: Brett Magill > > Better yet, forget reading the SUSE manual. For a user at your level > who wants to begin with Linux, but also wants a system that > "just works" > use Ubuntu. It is Debian based with the convenient apt-get

This question is not oriented towards R, but is posted here because I have the impression that there are at least some Latex users among the contributors. The question is: What editors for Latex are to be recommended? I have located one: http://www.latexeditor.org/ What other alternatives are there? I am (for the most part) using Windows XP. Tom

I an stumbling on something that is probably very simple, but I cannot see the solution. I have an object generated by the table () function and want to recompute this table so each cell represents the percentage of the corresponding row sum. Of course a dedicated function can be written (which I have done), containing the necessary loops etc., but there should be a simpler way. I'd

Hello All, We would like to call quantile() function from the R-package STATS in a Delphi program. If this is possible, could anyone provide us with an example? Thanks in advance. --Anna ----------------------------------------- Anna Belova Abt Associates Inc. 4800 Montgomery Ln, St 600 Bethesda, MD-20814 phone: 301-347-5304 fax: 301-652-7530 http://www.abtassociates.com/environment

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 hard disks. I can think of a number of situations where this could be handy. In addition memory sticks are getting cheaper and more powerful by the day. So: Is it possible to run R off one of

Dera Graham I would highly be thankful if u help me how to do 1. Wilk's Lambda test 2. Box plots and 3. pooled within group standardization in discriminant analysis with 6 variables in R. Actually I am new to R but I have an assignment to analyse some questions only in R and there is drawback for me, no one in our dept. knows about R. Really I am very much depressed and afraid that I will

Readers of this list might be interested in the following article in the New York Times and might find amusing the notion that "Some people familiar with R describe it as a supercharged version of Microsoft's Excel spreadsheet software...". http://www.nytimes.com/2009/01/07/technology/business-computing/07progra m.html?_r=1&ref=technology Art

I am a total newbie at R but experienced with computers. If this is not the right forum for this question, please let me know one that is. I searched in the R manuals in the Help section, the Nabble help and Rseek but no luck. I am trying to install the package gcl on my recently installed R 2.8.1 I searched on cran for the windows version and found a zip file for the package In RGui, I ran