search for: venebles

Hi, I was just browsing Springer's web site for Venebles & Ripley's book and found more then one edition. Is there one that is preferable to get in the context of working with R? Thanks YG -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html...

Dear R Users/Experts, I am using a function called logitreg() originally described in MASS (the book 4th Ed.) by Venebles & Ripley, p445. I used the code as provided but made couple of changes to run a 'constrained' logistic regression, I set the method = "L-BFGS-B", set lower/upper values for the variables. Here is the function, logitregVR <- function(x, y, wt = rep(1, length(y)), intercep...

Sorry, I deleted my old post. Pasting the new query below. Dear R Users/Experts, I am using a function called logitreg() originally described in MASS (the book 4th Ed.) by Venebles & Ripley, p445. I used the code as provided but made couple of changes to run a 'constrained' logistic regression, I set the method = "L-BFGS-B", set lower/upper values for the variables. Here is the function, logitregVR <- function(x, y, wt = rep(1, length(y)), interce...

...tata, Perl, and various idioms of SQL. A number of basic working issues have so far eluded me in R, so I thought I would post several long and newbie messages in the hope that several people will respond with different ways to resolve these issues. I have read Maindonald's _ Intro_, and the Venebles et al _Intro_ and I have browsed the reference manual and online help. The Venebles et al _S_ book is in the mail. I will be very pleased to RTFM if only you can point me to the appropriate section. This said, I have some questions about work organization in R. In SAS and Stata, I frequentl...

...). The relevant section of my code is at the bottom of the .R file after the end of the outer loop. I've tried to provide meaningful comments. I've read the help files for _apply, aggregate, arrays and data types, and have also consulted with several texts (Maindonald and Braun; Spector; Venebles and Ripley for S-plus). Somehow I still don't get it. My attempts usually result in a message like the following: > agg.result = aggregate(simarray.part[,3], by=list4, FUN = mean) Error in FUN(X[[1L]], ...) : arguments must have same length But when I check the length of the arguments, t...

...d symbol not found Error in library(haplo.stats, lib.loc = "/people/biostat3/sinnwell/Rdir/library") : .First.lib failed When I remove this one C file from the package, though remaining R-functions depend on it, the library loads beautifully. We've followed guidelines in Venebles and Ripley's S Programming to handle Calloc, Free, and S_alloc in all three files. I think there is a possibility the problem is there. I looked at R-help archive emails with similar error messages, and those looked like fortran compiler version issues. Am I also dealing with a compiler is...

Hi, Does anyone know if there is a function to find the maximum likelihood estimates of glm using Newton Raphson metodology instead of using IWLS. Thanks Valeska Andreozzi -------------------------------------------------------- Department of Epidemiology and Quantitative Methods FIOCRUZ - National School of Public Health Tel: (55) 21 2598 2872 Rio de Janeiro - Brazil

Hi everyone Can anyone tell me how I normalise a power spectral density (PSD) plot of a periodical time-series. At present I get the graphical output of spectrum VS frequency. What I want to acheive is period VS spectrum? Are these the same things but the x-axis scale needs transformed ? Any help would be greatly appreciated Tom

...o: r-help at r-project.org Message-ID: <19733974.post at talk.nabble.com> Content-Type: text/plain; charset=us-ascii Sorry, I deleted my old post. Pasting the new query below. Dear R Users/Experts, I am using a function called logitreg() originally described in MASS (the book 4th Ed.) by Venebles & Ripley, p445. I used the code as provided but made couple of changes to run a 'constrained' logistic regression, I set the method = "L-BFGS-B", set lower/upper values for the variables. Here is the function, logitregVR <- function(x, y, wt = rep(1, length(y)), interce...