similar to: re: GUI's for teaching

Definitely 2 camps on this issue; so why not compromise with a drop-down menu for the most frequently used processes, the user responds with the necessary parameters for his choice, and R then writes the source statements on the terminal and executes them. The user follows the familiar gui procedure, is thereby automatically introduced to the command statements involved, and R's

Hi, Have you seen the tcltk package? I believe it is a better option than the one you outline in your message. Why develop a Windows-only GUI? Maybe in a few years your teaching department will give up Windows for Linux (for the reasons you wrote about R: it is free, advanced, and adaptable). There is an article in R News (vol.1, n?3) by Peter Dalgaard on the tcltk package, and the latter

Hi all, I get two different results when using sum() and the switch na.rm. The result is correct when na.rm=FALSE. Linux Redhat 7.3, R version 1.6.1. I've had no luck searching the mail archives, so I was hoping somebody could explain/check this one for me. I will need to apply the function to missing data, simple as it is. Code: x<-matrix(runif(20,0,5)%/%1,4,5) # random matrix

Hi All, I am having trouble installing the sm package, and only the sm package. My box is RedHat 7.3 on a PIV. Readline 4.3-3 is installed (suited for RH 8, but same error under readline 4.2 for RH 7.3), but it seems to be looking for the readline library in the wrong directory. Will installing readline 4.1 do the trick? What else could be done? Rohan Sadler [root at rsadler R]# R CMD

Hello all, I'm attempting to conduct spatial analysis of trees within a plot. I want to see if the trees are spatially correlated to soil characteristics, say pH, or moisture content. I think one way to do it is with mpl, however, my soil characteristics were not taken at exactly the same locations as my trees and further, the vectors aren't the same length. I'm getting the

Dear R-Listers, I have spatial data on an equidistant rectangular grid, similar to topographic data. I know that there are quite a few R-packages or base functions that provide nice iso-contours plot, but I don't want a plot, just the smoothed isocontour line of ONE level (e.g. 10 mm). Data sets are large, so it would be preferable if the availability of regular grid data could be exploited,

Hi all, I wish to implement various landscape ecology measures through R, such as: box counting dimension; twist number statistics; contagion and lacuniarity indices; angular second moment; adjacency measures; dominance indices; etc ... Some of the measures can be applied to shape analysis and classification. Is anyone implementing any of these measures? If so I would like to contribute and

Dear R People: I will be teaching an undergraduate Design of Experiments class in the Spring Semester. It will be very much an applied course. My question, please: has anyone used R for a course like this, please? I've tried Rcmdr for a regression course and just plain command line for a time series course. Should I use Rcmdr, or teach them to use the command line, OR is there something

@Vivek, thanks for your answer and especially these links! I just want to add two more though I am not sure if they are useful here: - Some slides [0] that explain the general structure of LLVM and LLVM-IR I used in our compiler class last year [0]. - Examples that build LLVM-IR "from scratch". These were designed to help students to build an LLVM-IR frontend for their AST.

I am trying to learn R right now. I came from minitab and wanted to learn something a bit more robust. I am trying to figure out some simple probability to measures but I do not know the commands. I am using OSX. Are there resources for figuring out simple events? If I have data distributed as Normal(5,4) and I wanted to know what the probability of P(<6) would be this, I cannot quite

I am using R in my undergraduate engineering statistics courses, in which I am currently discussing one-way analysis of variance. Many of the data sets for the exercises or examples give the data in the form on one column per treatment level. To use the aov or lm functions such data should be converted to one column with all the response observations and a companion column with indicators of the

> Hello, > Presently my research is focused on compiler and i found LLVM great tool to > work with. I want to familiarize it at undergraduate level. > > Hi Hameeza, I have face similar situation before and I would suggest you to read some books/ blogs available on Internet for LLVM. I think the best way to understand LLVM is by playing with it. Then you should try doing some

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

Hi I would like to start by thanking everyone that replied. Thank you for the information, and for the comments about how or why you use it and thankx for the encouragement re my talk.... Please note that I do not claim to have ellicited a reply from all users of R, this is a quick survey not a census. I have tried to break the responces down to the following categories: Where: (hopefully

Hi all, The suggestions were great. However, after installing readline-devel I had to install ncurses-devel before getting sm to work. Can this be put into the RH 7.3 Readme when downloading R rpms (and other distbns like Mandrake where there may be a similar problem)? Thanks for your help. Rohan Sadler -- Ecosystems Research Group (ERGO) School of Plant Biology (Botany), Faculty of

A nice free software with a GUI-interface (which can be linked to R, BTW) is GRETL: http://gretl.sourceforge.net/ . Some people may find it useful for basic stuff. Regards, Francisco. -- Francisco Cribari-Neto voice: +55-81-32718420 Departamento de Estatistica fax: +55-81-32718422 Universidade Federal de Pernambuco e-mail: cribari at de.ufpe.br Recife/PE, 50740-540,

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

Hello, I am a newbie to LLVM as well as compilers and I am hoping for some direction in finding an instance of where a Reaching Definition Analysis is being implemented within LLVM. I have referenced the sources files, initially hoping to find an explicit ReachingDefinitionAnalysis.cpp file ;-) but with no such luck. Other than that I have found the files SimpleRegisterCoalescing.cpp and the

I'm having trouble with tapply, it seems to give me NA for the mean of a set like {2, 3, 4, NA}, can I get it to ignore the NA's and give me a mean like say, three? Am I just doing something stupid? Any help would be apprecitated, Also are there PDF versions of any of the R stats books around that I might be able to get my hands on? Bryn

Hi, We have been running R ver 1.4.1 on a redhat linux (7.1)cluster without problem for quit some time. Now, some user wanted me to install version 1.6.1, and it compiled fine, but it crashes with "segmentation fault" when you run it. I used gcc296 (default) for compiling, Should I change compiler or is there some other thing I could do to avoid this problem. Regards Per-Anders