similar to: Developing R classes

Hi, I started creating a small class but I'm courious about how it is working. To create a instance of my class "Partri" I write this at Rgui: x <- new("Partri", name="Gilvan") and to change the slot "name" of this instance, I write: setName(x, newname="Justino") It is not working, because when I type "x" at Rgui, it shows

Hi. I just started studing R language and I saw there is a package to develop user interface called tcltk. I read about it and I made some tests but I found it a little poor and slow.. I was thinking if is possible to write a user interface using java and ask to R to run all the maths I have and R returns all the results, including graphs. If someone has any suggestions to me I will appreciate,

I found the following document on making R packages. But it is old. I'm wondering if there is more current ones and hopefully more complete ones. http://biosun1.harvard.edu/courses/individual/bio271/lectures/L6/Rpkg.pdf

Hi, I am stuck on something for a couple days, I am almost about to give up. This looks simple, but I can't figure out. I hope I can get some help here. I am trying to do some symbolic and numerical derivations. Let me explain the problem. Let's say, I have a matrix as follows: > load <- matrix(c(3,0,1,4,1,3),nrow=3,ncol=2,byrow=TRUE) > > load [,1] [,2] [1,] 3 0

I'm not entirely sure what caused this, but the following code, which used to behave as expected, is now broken: ---- lolwut.c ---------------------------- void lolwut(void) { __asm __volatile ( "ldr r1, =1f \n" ".ltorg \n" "1: \n\t" : : : "r0", "r1" ); } ------------------------------------------- ~/clang

Hi everyone thanks for the replies. The issue was NOT a font problem; I deliberately chose ll1 and l11 as examples of easily confused variable names (evidently these were too easily confused ;-). The code snippet was written as intended, and increment() contained a deliberate, highlighted, bug. I was asking for guidance on avoiding/finding this sort of coding error. That was why I wrote

Hi R people: I would like to learn about classes, methods, S3 and S4. Which book would be the most helpful for this info, please: the green one or the white(and blue) one? Or is there something that would be even better, please? Thanks in advance. Sincerely, Laura Holt mailto: lauraholt_983 at hotmail.com R 2.1.0 Windows. trying to learn

I'm using specify.model for the sem package. I can't figure out how to represent the residual errors for the observed variables for a CFA model. (Once I get this working I need to add some further constraints.) Here is what I've tried: model.sa <- specify.model() F1 -> X1,l11, NA F1 -> X2,l21, NA F1 -> X3,l31, NA F1 -> X4,l41, NA F1 -> X5, NA, 0.20

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Hi I recently found a bug that was isomorphic to the following: ll1 <- 2 increment <- function(x) { l11 <- 1 return(x+ll1) #bug here } Of course, R is obeying the scoping rules just fine, but I'm evidently not setting the do.what.I.mean.not.what.I.say variable correctly. Now, how do I avoid making this type of error? ... and what is the best tool for tracking it down? --

Dear R People: Could someone direct me to some documentation on the difference between S3 and S4 classes, please? For example, why would a person use one as opposed to another? Maybe pros and cons of each? Thanks in advance! R Version 2.2.0 (I'm downloading the new one this afternoon!) Windows. Happy New Year! Sincerely, Erin Hodgess Associate Professor Department of Computer and

############################################################################### Before reporting 4 problems with windows(rescale=) I want to congrat on R1.2 and to thank r-developers for quickly adding the rescale workaround to the windows version. Happy New Year Jens Oehlschlaegel ###############################################################################

Hola, ¿Alguien me puede indicar cómo conseguir que un gráfico se adapte al formato DIN-A4, con su correspondiente verticalidad?. ¿Hay que hacerlo "manualmente" o existe algún parámetro/función que lo controle?. Gracias. Eva [[alternative HTML version deleted]]

Hello, I was messing around with graphics, and noted an odd behavior of par("din"). If the x11 device is empty, par("din") does not return the correct size if the device has been resized manually. dev.size() works correctly. R version 2.7.1; Fedora 8 # case 1 - empty device > x11() > dev.size() [1] 6.995263 6.994187 > par("din") [1] 6.995263 6.994187 #

Hi all, I appreciate that this is not an RSpec question, but I wondered if anyone out there can offer some pointers. We''re using the latest versions of RSpec and RCov, and ruby --version says this (on the Ubuntu build server): ruby 1.8.6 (2008-07-17 patchlevel 279) [x86_64-linux] We''re getting intermittent (yes, intermittent!) segfaults from the build when running

Dear All, I am trying to use ode solver "rk4" to solve an ODE system, however, it keeps saying: Error in eval(expr, envir, enclos) : object "dIN" not found. The sample codes are enclosed as follows, please help me. Thank you very much! rm(list=ls()) library(odesolve) # The ODE system ode <- function(t,x,p){ with(as.list(c(x,p)),{

Full_Name: Din Chen Version: 2.4.0 OS: Windows XP Submission from: (NULL) (66.17.122.18) I just updated the R.2.4.0. and got the error message for random effect modelling, which was working on R.2.3.1. library(lme4) mmod <- lmer(bright ~ 1+(1|operator), pulp) summary(mmod) Then when I tried to extract the residuals and random effect using: resid(mmodr) ranef(mmodr) I got error message:

Dear All, I am trying to use ode solver "rk4" to solve an ODE system, however, it keeps saying: Error in eval(expr, envir, enclos) : object "dIN" not found. The sample codes are enclosed as follows, please help me. Thank you very much! rm(list=ls()) library(odesolve) # The ODE system ode <- function(t,x,p){ with(as.list(c(x,p)),{

I wish to make modifications to the plot.pedigree function in the kinship package. My attempts to contact the maintainer have been unsuccessful, but my question is general, so specifics of the kinship package might not be an issue. My first attempt was to make a new function Plot.pedigree in the .GlobalEnv which mostly achieved what I wanted to. However, I'm sure that's not the tidiest

Dear Prof. Brian Ripley, thank you for answering. > Can we step back a bit? I think we could probably do better > than we do. > No one envisaged people resizing graphics windows when the system was > designed (as far as I can see), and locking aspect ratios (which > S-PLUS now does) when re-sizing looks sensible to me. We > might seriously > want to consider scrollable