similar to: Windows binary of Dopt library

A couple of months ago I downloaded R 1.6.0's binary for Windows, which I have since been using without any particular problem, that is on one machine running Windows 98. Last week I set up a local network and have since tried to use R remotely, i.e. R is installed on the previous machine and nowhere else. On the client's side, the GUI opens correctly and allows me to do simple

Last week (Wed 9/10/2003, "regression questions") I posted a question regarding the use of gnls( ) and its dissimilarity to the syntax that nls( ) will accept. No one replied, so I partly answered my own question by constructing indicator variables for use in gnls( ). The code I used to construct the indicators is at the end of this email. I do have a nagging, unanswered

Dear R-helpers, I recently upgraded to R 1.9.0 in my computer at work and at home: 1.-The computer at home has Windows XP and Office XP and it seems to work perfectly and I copy-paste graphics perfectly. 2.-The computer at work has Microsoft Windows 2000 (5.00.2195 Service Pack 2) and Word 2000 (9.0.4402 SR-1) I cannot copy-paste windows metafiles into Office applications in my computer at

Dear R-helpers, I would like to change the default value of a functions that is call by a package. The function deparse() is called by a set of functions from a library and because I don't think is appropriate to change the library, I am trying to change the default value in deparse(). At the moment the only solution I have come across is to place a function in my working environment like

Dear R-helpers, I need some help to produce a set of contour plots that I am trying to make in order to compare surfaces between the levels of a factor. For example: library(lattice) g <- expand.grid(x = 60:100, y = 1:25, ti = c("a","b","c")) g$z <-with(g, (-1e-4*x-1e-3*y-1e-5*x*y)*(ti=="a") + (1e-2*x-1e-3*y-1e-4*x*y)*(ti=="b") +

Dear R-experts I would like to read all files from a directory, the files have names "myname0001.txt" etc. I paste the directory plus file names and use "read.delim()". My problem is that some file names are missing, so I get an error and my program stops. Is there a way to check for a null pointer analogous to C, so that I can simply skip non-existent filenames? Please do

I got a question from a fellow PhD student that work with spectrum analysis in Excel and now he has lots of spectrums that needs to be smoothed, which would be nice to be able to do in batch. Is there an R package that can do: Savitzky-Golay smoothing for reflectance spectral data or a function that does something similar. _______________________________________ Henrik Andersson

Hi there, I'm trying to fit a growth curve to some data and need to use a weighted least squares estimator to account for heteroscedasticity in the data. A weights argument is available in nls that would appear to be appropriate for this purpose, but it is listed as 'not yet implemented'. Is there another package which could implement this procedure? Regards, Robert Brown

Dear R-helpers, I’ve got a summary of results from a by() call that I am making with a list of more than two of factors not very different from the example in the by() help page require(stats) by(warpbreaks[, 1], warpbreaks[, -1], summary) The result of the command gives a list of the form wool: A tension: L Min. 1st Qu. Median Mean 3rd Qu. Max. 25.00 26.00

Dear R-helpers, I am trying to reshape a data frame that is in a wide format into a long format one. I have come across the reshape() function, but I have been very successful using it. As an example: ll <- data.frame(time.1=seq(0.1,1,length=10),L1=rnorm(10),time.2=c(seq(1,7),rep(NA ,3)),R2=c(rnorm(7),rep(NA,3)),time.3=c(seq(1,1.5,length=3)+5,rep(NA,7)),M3=c (rnorm(3),rep(NA,7))) which

Dear R-helpers, I have some problem with a model I am trying to run with nlmeODE. I have a covariate that I want to include in the model and I can't find in the documentation how to include it in the model so that it can calculate it. >formula(trial) PME ~ time | Ident abcnoniso <- list(DiffEq=list( debdt = ~ -ksol*pH*eb , desdt = ~

Dear all, Has anyone written functions to compute (and ideally project / plot onto a plane) confidence ellipsoids for q linear model parameters, q > 2 ? Greetings and best wishes, Renaud -- Dr Renaud Lancelot, v?t?rinaire CIRAD, D?partement Elevage et M?decine V?t?rinaire (CIRAD-Emvt) Programme Productions Animales http://www.cirad.fr/presentation/programmes/prod-ani.shtml ISRA-LNERV

Dear Colleagues, Our group is also working on implementing the use of R for pharmacokinetic compartmental analysis. Perhaps I have missed something, but > fit <- nls(noisy ~ lsoda(xstart, time, one.compartment.model, c(K1=0.5, k2=0.5)), + data=C1.lsoda, + start=list(K1=0.3, k2=0.7), + trace=T + ) Error in eval(as.name(varName), data) : Object

hi R-help! I would like to know a simple and easy way (if posible) to do the following data manipulation. I have a matrix of experimental data (with replicae in time) >experiment<-data.frame(times=c(0,0,10,10,20,20,30,30),expval=c(1,1,2,2,3,3,4,4)) > experiment times expval 1 0 1 2 0 1 3 10 2 4 10 2 5 20 3 6 20 3 7 30 4 8

I'm written a function that uses nls in a loop to fit a model to resampled data. Occasionally a sample is drawn such that the algorithm (apparently) can't converge and step factor reduced below minimum is printed to the screen. I tried a few different settings for the minFactor parameter in nls.control with no different result. When this happens, I would like my function to put NAs

Forgive this naive question, but I'm not accustomed to using Win ports of Unix tools (actually I'm unfamiliar with Unix tools, period). Anyway, I've successfully compiled the R-1.1.1 sources into the full binary package. Everything seems to work. I'd like to remove all the "made" files and leave only the original source code and the compiled binary code. Is there

Does someone out there have an example of R-code for a split-split plot ANOVA using aov or another function? The design is not balanced. I never set up one in R before and it would be nice to see an example before I tackle a very complex design I have to model. Thanks, Mike Mike Saunders Research Assistant Forest Ecosystem Research Program Department of Forest Ecosystem Sciences University of

Hi all, Does anybody have a workable dopt program in R to generate D-optimal designs. I downloaded dopt.zip from stat homepage of the university of oxford, whenever I load it into R and try to run, the following error comes: Error: couldn't find function "Dopt". Any information will be highly appreciated! Thank you! Harvey. --------------------------------- [[alternative HTML

Hi, I would like to have some advise about how to install Dopt on R for Windows. I can not manage to properly compile Dopt.f anf to get a suitable dll for R. Can someone explain me step by step what should I do ? Thanks in advance Isabelle Zabalza-Mezghani

Dear R users, I have used the AlgDesign package to construct a D-optimal exp. design from a file containing a set of allowed runs. The code for the optFederov call is below: #Using optFederov ------------------------------ library(AlgDesign) options(contrasts=c("contr.sum","contr.poly")) file<- read.table("C:/Upstream/Designs/Vodacom Tanzania phase1