search for: ribatet

...y information about that. Could someone tell me if it is safe or not please ? Best, Mathieu ----------------------------------------------------------------- I3M, UMR CNRS 5149 Universite Montpellier II, 4 place Eugene Bataillon 34095 Montpellier cedex 5 France http://www.math.univ-montp2.fr/~ribatet Tel: + 33 (0)4 67 14 41 98

...ages: [1] stats graphics grDevices utils datasets methods base Best, Mathieu ----------------------------------------------------------------- I3M, UMR CNRS 5149 Universite Montpellier II, 4 place Eugene Bataillon 34095 Montpellier cedex 5 France http://www.math.univ-montp2.fr/~ribatet Tel: + 33 (0)4 67 14 41 98

Dear all, I'd like tweaking the ... arguments that one user can pass in my function for fitting a model. More precisely, my objective function is (really) problematic to optimize using the "optim" function. Consequently, I'd like to add in the "control" argument of the latter function a "ndeps = rep(something, #par)" and/or "parscale =

Dear list members, I've got a small question on matrix multiplications in a C code. Because of a really cpu demanding likelihood, I had to use a C code within an R function wrapper. I'm pretty sure that there is already one good code for matrix multiplication in C - maybe in the R source code itself - but I wasn't able to find it. Anyone as an idea on how to handle matrix

Dear list, I'm currently writing a C code to compute the (composite) likelihood - well this is done but not really robust. The C code is wrapped in an R one which call the optimizer routine - optim or nlm. However, the fitting procedure is far from being robust as the parameter space depends on the parameter - I have a covariance matrix that should be a valid one for example. Currently,

Dear list, Here's a suggestion about the different optimization code. There are several optimization procedures in the base package (optim, optimize, nlm, nlminb, ..). However, the output of these functions are slightly different. For instance, 1. optim returns a list with arguments par (the estimates), value the minimum (maxima) of the objective function, convergence (optim

Dear list, I got an automatic email complaining than some of my packages didn't pass 'R CMD check' for R-2.10.0 alpha anymore. Both of them make use of the "cases" LaTeX environment. Inspecting the log outputs I got: LaTeX errors when creating PDF version. This typically indicates Rd problems. LaTeX errors found: ! Misplaced alignment tab

I think most of us would expect prod(0:1000) to return 0, and ... ... it does. However, many of us also expect prod(x1, x2) to be equivalent to prod(c(x1,x2)) the same as we can expect that for min(), max(), sum() and such members of the "Summary" group. Consequently, prod(0, 1:1000) should also return 0, but as you see, it gives NaN which may be a bit puzzling... The

I'm making the move of the survival package from my own environment to, and have stumbled into a vacuum. The R Extensions manual has really nice instructions about how to lay out the directories, order the files, and run tests for DISTRIBUTION of a product, but I can't find anything on how to set up a reasonable DEVELOPMENT environment. In my local world, I had the .c and .s files in

Dear all, I'm currently experiencing big troubles with my C code called by .Call in a R function. I know this may not be the right place for such things but these errors are driving me crazy. And I hope other people may have already experienced these problems so that they could give me good suggestions. Sorry if I'm completely out of topic. Well let's go... I'm writing a

...c(min(at) - 0.5, max(at) + 0.5) else { xlim <- pars$xlim pars$xlim <- NULL ----------------------------------------------------------------- I3M, UMR CNRS 5149 Universite Montpellier II, 4 place Eugene Bataillon 34095 Montpellier cedex 5 France http://www.math.univ-montp2.fr/~ribatet Tel: + 33 (0)4 67 14 41 98

Has your environment variable path been set correctly? It's been a while that I'm not using R under windows but remember had experienced the same error. I remember that I had to put many paths as environment variable to build R packages properly. Best, Mathieu wolpert at stat.duke.edu a ?crit : > Hi, R team. > > I'm trying to build a dll from a c program to be invoked

Dear list, I'm currently trying to write a new R package to model spatial extremes. In particular, for a model fitting procedure, I'd like to use flexible response surfaces (like linear models, splines, ...) for the parameters of my model. Following this idea, I'd like to allow "a new interpretation" of an R formula given by the user, like y ~ x1 + rb(x2, knots,