search for: nlmin

I'm a very recent user of R. I have been adapting my Splus programmes and I found only one (important) problem. There exists no function "nlmin" in R and its substitute, "nlm", does not work well with my kind of problems, sometimes no achieving convergence, other tines "converging" to impossible values. My models are highly nonlinear and are to be estimated by both GMM and empirical likelihood methods. Is there an...

Dear all, I am using the functions 'optim' and 'nlminb'. For both, you can provide a function which computes the gradient of the objective function (to enhance speed and precision). In my case, both the objective function and the gradient take time to be computed and share many common computations (similar matrix, products, etc...). Therefore,...

Hello again Is there any way (or an alternative non-linear minimiser) that arguments to the function called in nlm can be passed in version 0.62.4? Like (I believe) nlmin in a well known other program or optimise in R. Do we use global variables? Shurely not! \John -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

...I am trying to minimise a function using "nlm". I am getting the following error message: "Error: function is too long to keep source" The function is really very long (about 100 A4 pages). Is there anything I could do to solve this problem? At the moment I am using "nlmin" in S-Plus with no problems but I'd prefer to use R. Thank you very much in advance. Regards. Marcel Marcel Vieira Social Statistics University of Southampton

Good morning to all, I should find the zero of a specific function with respect to a vector of arguments. Does it exist something similar in R? Thank you very much, Enrico Foscolo

Hi, I'd like to know if the Holt-Winters function in R can modify the alpha paremeter in an "intelligent" way. I know it can vary from 0 to 1. Wich mathematical formula does it use to calculate the correct value of alpha? Thanks, bye. Carlo

Dear Gregory R. Warnes, I'm a phd student in statistics, at the University of Milano Bicocca. I'm interested to the methods of estimate the parameters of the Dirichlet distribution. Do you have implemented an algorithm in R? If so, can you give me the script? or, in general, some helps? Best Regards Gianna --------------------------------------------------------------- Gianna Monti

R-help Digest Friday, December 3 1999 Volume 01 : Number 034 In this issue: [R] model.tables Re: [R] Installing R on Slackware Linux Re: [R] Installing R on Slackware Linux [R] nlmin Re: [R] nlmin Re: [R] nlmin Re: Summary: [R] Wanted: online Introduction to R [R] Applying a function of several variables to data Re: [R] R and XML -- a near perfect combination? [R] problem installing R 0.90 Re: [R] graphics Re: [R] graphics Re: [R] graphics Re: [R] graphics...

This is what I have been using. Does anyone have a better way? In particular I would like to see letters in comment strings not stretched so much. Thanks -Frank \documentclass{article} \usepackage{listings,relsize} \lstloadlanguages{R} \newcommand{\lil}[1]{\lstinline|#1|} \begin{document} \lstset{language=R,basicstyle=\smaller,commentstyle=\rmfamily\smaller, showstringspaces=false,%

Hi, I am planning on putting some R script in an appendix of a LaTex document. Can anyone recommend me a way of how to format it? Is there a way to keep all line breaks without having to insert \\ in every single line? Thank you! Benjamin