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I am a Macintosh computer (MAC OS X Version 10.4.3) user. I would like to run R for structural equation modeling and meta-analysis but am having difficulty using the Rcmdr interface. According to the R commander installation notes for Tiger Macs ­ I need to 1) Install X11.app from Apple Install disks ­ which I have done 2) Install R.app ­ which I have done 3) Install binary package rgl from CRAN

Dear all, We are looking for bright and motivated candidates to join our pharmacometric modelling team at the University of Cape Town. Pharmacometrics is an emerging discipline that uses mathematical and statistical tools to quantify drug, disease, and trial information to aid efficient drug development and/or regulatory decisions. It designs and applies mathematical models to describe the

Dear all, Our pharmacometrics group is looking for bright and motivated candidates to join our modelling team within the Division of Clinical Pharmacology at the University of Cape Town. Our group has established PK/PD modelling expertise in the disease areas of tuberculosis, HIV, and malaria. It is active internationally and enjoys on-going collaborations and exchange programs with some of the

Dear all, at the Division of Clinical Pharmacology at the University of Cape Town (South Africa) we are looking for highly motivated science/engineering PhD graduates to join our pharmacometrics group as a post-doctoral fellow. Pharmacometrics is an emerging discipline that applies mathematical modelling and simulation to pharmacology, aiding the interpretation of data from clinical trials,

Hi, is there a way to define a method say '$$' that would behave like '$' and allow calls like 'a$$name'? Thanks. Renaud -- Renaud Gaujoux Computational Biology - University of Cape Town South Africa ### UNIVERSITY OF CAPE TOWN This e-mail is subject to the UCT ICT policies and e-mail disclaimer published on our website at

Thank you very much Steve. Your suggestion works perfectly -- at least with doSEQ, doMC and doMPI. Bests, Renaud On 28/06/2011 15:35, Stephen Weston wrote: > I think that the result of the concatenation should be a call object, > rather than an expression object. How about something along the > lines of: > > '%dopar2%'<- function(obj, ex) { > ex<-

hello all i searched the archives and couldn't get a solution to the following question. i have the following function: F=function(z,v) { if (v==-.5) return(1) else return(2*v/z + 1/Recall(z,v-1)) } and while testing whether it works (ie F(z,v) is approx = besselK(z,1+v)/besselK(z,V). the recursion formula allows one to calculate besselK(z,1+v)/besselK(z,V) for large values of z )

Hi all Apologies if this is a trivial question- I have searched the lists and the online help files etc but have not managed to find anything. I recently downloaded the latest version of R, which has the help type set to htmlhelp as default (according to http://127.0.0.1:18380/library/utils/html/help.html) I would very much like to be able to access the help files when I am offline by typing

Hi, I am having troubles sourcing a file from our local network from R. It looks like this file are not properly accessed by 'source', even they can be downloaded with download.file. (See below my settings and some tests I did). I ended up with a work around, but I would like to understand what is going on. Doesn't source/readLines uses the same mechanism as download.file to

Hi I know how to referenc R in a scientific paper - but is there a standardised way to reference packages? Thanks Rainer -- NEW EMAIL ADDRESS AND ADDRESS: Rainer.Krug at uct.ac.za RKrug at sun.ac.za WILL BE DISCONTINUED END OF MARCH Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation Biology (UCT) Plant Conservation Unit Department of Botany University of Cape Town Rondebosch 7701

Hi I am trying to install the package "pheno", but it needs the package "nprq" by Roger Koenker et al. which I can I find this package? It does not seem to be on CRAN and googling also doesn't give me an URL - is it still somewhere available? Thanks, Rainer -- NEW EMAIL ADDRESS AND ADDRESS: Rainer.Krug at uct.ac.za RKrug at sun.ac.za WILL BE DISCONTINUED END OF

Hi, this post is about foreach operators, the compiler package and the last update of doMC that includes support for the compiler functionality. I am using a home-made %dopar%-like operator that adds some custom expression to be executed before the foreach loop expression itself (see sample code below). It used to work perfectly with doMC 1.2.1, but with the introduction of the compiler

Hi, suppose you have two versions of the same algorithm: one in pure R, the other one in C/C++ called via .Call(). Assuming there is no bug in the implementations (i.e. they both do the same thing), is there any well known reason why the C/C++ implementation could return numerical results non identical to the one obtained from the pure R code? (e.g. could it be rounding errors? please

Hi I am sure this is simple - but how can I convert one charecter vector into one string? example: x <- c("This ", "is ", "one ", "sentence.") should become "This is one entence" Thanks Rainer -- NEW EMAIL ADDRESS AND ADDRESS: Rainer.Krug at uct.ac.za RKrug at sun.ac.za WILL BE DISCONTINUED END OF MARCH Rainer M. Krug, Dipl. Phys.

Hi, in R 2.12.1, R CMD check hangs when building a vignette that uses a foreach loop with the doMC parallel backend. This does not happen in R 2.13.1, nor if I use doSEQ instead of doMC. All versions of multicore, doMC and foreach are the same on both my R installations. Has anybody encountered a similar issue? Thank you. Renaud ### UNIVERSITY OF CAPE TOWN This e-mail is subject to the

Dear All, I am trying to fit a structural time series model using the StructTS function (package stats) with only 2 seasons (summer and winter). More than 2 seasons work fine but with 2 seasons I get this error: > fit <- StructTS(y.ts, type="BSM") Error in T[cbind(ind + 1L, ind)] <- 1 : subscript out of bounds I have looked at Prof. Ripley's 2002 RNews article but cannot

see nlm or optim Justin BEM Elève Ingénieur Statisticien Economiste BP 294 Yaoundé. Tél (00237)9597295. ----- Message d'origine ---- De : Wayne Delport <wdelport@botzoo.uct.ac.za> À : r-help@stat.math.ethz.ch Envoyé le : Vendredi, 8 Décembre 2006, 8h27mn 44s Objet : [R] formula format for parameter estimation Hello, I am trying to input the following formula into R for parameter

Hi I have a large dataset which follows a multimodal distribution. And I would like to identify the maxima. As the data is obtained from a stochastic simulation, not all maxima in the data are "real maxima of the dirstribution" but rather small random fluctuations. Unfortunately, it is not possible for me to run more simulations to smooth the obtained distribution. What I am doing

Hi, is there a reason why when calling the argument 'lib.loc' of library() is not used when trying to load the required packages? 0. Package A depends on package B 1. Install packages A and B in a subdirectory 'lib' of the current directory 2. Call: library(A, lib.loc='./lib') This will give something like the following: Loading required package: B Error: package

Hi I just installed the pastecs package and I am wondering: is there an english (or german) translation of the file pastecs.pdf? If not, is there an explanation somewhere of the object of type 'turnpoints' as a result of turnpoints(), especially the "info" field? Thanks, Rainer -- NEW EMAIL ADDRESS AND ADDRESS: Rainer.Krug at uct.ac.za RKrug at sun.ac.za WILL BE