similar to: RTisean generating multivariate surrogates;

Hi, I wonder if someone could help. I needed to transfer (copy) a workspace file that had been generated in linux (R 2.11) to windows running the same version of R 2.11 (but of course windows binary). Usually, there is no problem in doing this and all objects work as expected. I am often doing this to be able to produce wmf or emf graphic files that I need. This time I had some spectra that I

Dear R users, I've just uploaded 2 packages on CRAN, RTisean and tsDyn, both for time series analysis (joint research projects with members of the Statistics Department, University of Udine). Brief descriptions follow. RTisean is an R interface to TISEAN executables (http://www.mpipks-dresden.mpg.de/~tisean/). TISEAN is a suite of C and Fortran routines for nonlinear time series analysis,

Dear R users, I've just uploaded 2 packages on CRAN, RTisean and tsDyn, both for time series analysis (joint research projects with members of the Statistics Department, University of Udine). Brief descriptions follow. RTisean is an R interface to TISEAN executables (http://www.mpipks-dresden.mpg.de/~tisean/). TISEAN is a suite of C and Fortran routines for nonlinear time series analysis,

Hi, I?m trying to use the STLperArea function in the ndvits package. I can run the sample data (?SLPSAs_full?) without any problem. However, when I come to run the function on my own data, I get the following message. Waiting to confirm page change... Error in .checkPath(path) : no TISEAN executables found in that directory. Please set a proper TISEAN executables path using

Dear R users, I've just uploaded to CRAN a new version of RTisean, the TISEAN-to-R interface. This is now compatible with the recent, new 3.0.1 release of TISEAN [1]. This new TISEAN version is explicitely GPL-ed, and has some more routines handling multivariate time series. Bests, Antonio, Fabio Di Narzo. [1] http://idmc.blogspot.com/2007/03/tisean-300-is-out.html

Dear R users, I've just uploaded to CRAN a new version of RTisean, the TISEAN-to-R interface. This is now compatible with the recent, new 3.0.1 release of TISEAN [1]. This new TISEAN version is explicitely GPL-ed, and has some more routines handling multivariate time series. Bests, Antonio, Fabio Di Narzo. [1] http://idmc.blogspot.com/2007/03/tisean-300-is-out.html

Is the project on creating R GUIs using QT interfaces still on? Any plans of using PyQT Regards Ajay Ohri Websites- http://decisionstats.com http://dudeofdata.com Linkedin- www.linkedin.com/in/ajayohri On Tue, Nov 9, 2010 at 8:33 PM, Kari Ruohonen <kari.ruohonen at utu.fi> wrote: > Hi, > I wonder if someone could help. I needed to transfer (copy) a workspace > file that

Dear All, I am a novice when it comes to time-series analysis and at the moment I am actually interested in calculating the Hurst exponent of a time series. This question has already been asked quite some time ago http://bit.ly/98dZsi and I trust some progress has been made ever since. I was able to find some functions in the packages http://cran.r-project.org/web/packages/Rwave/index.html

R helpers, I am working with the R program performing multivariate regression trees (MRT). I have a matrix with species and environmental variables saved as a CSV file (sprot_matrix.csv), I have 42 species and 8 environmental variables (SECCHI+PH+TA+PTOT+NTOT+CHLA+AREA+ MEANDEP) for 104 samples Title SpA SpB SpC SpD Varible1 Variable2 Variable3 Sample1 Sample 2

Dear R-help, I would like to compute the variance for the proportion of treatment effect by a surrogate in a survival model (Lin, Fleming, and De Gruttola 1997 in Statistics in Medicine). The paper mentioned that the covariance matrix matches that of the covariance matrix estimator for the marginal hazard modelling of multiple events data (Wei, Lin, and Weissfeld 1989 JASA), and is implemented

As per `?intToUtf8`, and in the comments to `valid_utf8`[1], R intends to prevent illegal UTF-8 such as UTF-8 encoded UTF-16 surrogate pairs.? `R_nchar`, invoked via `base::nchar`, explicitly validates UTF-8 strings[2], but allows the surrogate: ??? > Encoding('\ud800') ??? [1] "UTF-8" ??? > nchar('\ud800')? // should be an error ??? [1] 1 The problem manifests

R helpers, I would like to know if it is possible that the last version of R is not giving the surrogate splits when you perform a Multivariate regression tree analysis? I installed the programm in different computers and i run the some matrix and it didn't gave me this information. With a previus version R 2.1.1. I do get the information for the surrogates. Please let me know how to get the

Dear R, Short verse of the question: Is there R code which will calculate surrogate splits and/or delta impurity for decision trees at each node? Long Version: I have local, legacy code which I use to calculate my decision trees. I would like to switch to R, but as I understand it surrogate splits are not implemented. Surrogate splits and feature ranking are described in Breiman et al

Dear all, I have uploaded to CRAN a new package: tseriesChaos. This is an early version (0.1) with basic tools for the explorative analysis of nonlinear time series motivated by chaos theory. Until now, the package is largely inspired by the TISEAN project (by Rainer Hegger, Holger Kantz and Thomas Schreiber: http://www.mpipks-dresden.mpg.de/~tisean/ ). This version includes: - Method of false

Dear all, I have uploaded to CRAN a new package: tseriesChaos. This is an early version (0.1) with basic tools for the explorative analysis of nonlinear time series motivated by chaos theory. Until now, the package is largely inspired by the TISEAN project (by Rainer Hegger, Holger Kantz and Thomas Schreiber: http://www.mpipks-dresden.mpg.de/~tisean/ ). This version includes: - Method of false

Dear R-users, Has anyone written a function for multifractal detrended fluctuation analysis? The "fractal" package does mono-fractal DFA, but not multifractal as far as I can tell. The MF-DFA approach is presented in: J. W. Kantelhardt, S. Zschiegner, E. Koscielny-Bunde, S. Havlin, A. Bunde, and H. E. Stanley, "Multifractal Detrended Fluctuation Analysis of

--- included message ---- Thus, my question is: *What common measures exists for ranking/measuring variable importance of participating variables in a CART model? And how can this be computed using R (for example, when using the rpart package)* ---end ---- Consider the following printout from rpart summary(rpart(time ~ age + ph.ecog + pat.karno, data=lung)) Node number 1: 228 observations,

A new version (0.7.1) of package 'subselect' has been uploaded to CRAN. Package 'subselect' provides functions which assess the quality of variable subsets as surrogates for a full data set, in an exploratory data analysis, and search for subsets which are optimal under various criteria. As of version 0.7 a new function 'leaps' has been added. 'Leaps' performs a

A new version (0.7.1) of package 'subselect' has been uploaded to CRAN. Package 'subselect' provides functions which assess the quality of variable subsets as surrogates for a full data set, in an exploratory data analysis, and search for subsets which are optimal under various criteria. As of version 0.7 a new function 'leaps' has been added. 'Leaps' performs a

Dear R-help, I'm applying the surrogate Poisson glm, by following Venables & Ripley (7.3 pp238-42). >overall_cbind(expand.grid(treatment=c("Pema","control"),age=c("young","adult","old"),repair=c("excellent","good","poor")),Fr=c(8,0,7,1,2,0,2,7,1,4,7,1, 0,3,2,5,1,9))