similar to: limitations to random number generator in 64-bits machines

Dear list, For the implementation of a particular optimization algorithm it is very important the random number generator. I would like to know if somebody could tell me what is the random number generator used by default in the 'runif' function. >From the help page of 'runif' and '.Random.seed' I guess that the default algorithm is 'Mersenne-Twister', but I

Dear list, For the maintainer of a given package, is it possible to change the licence of a it from GPL >= 2 to GPL >= 3 ? Thanks in advance, Mauricio Zambrano-Bigiarini, Ph.D -- ================================================= Water Resources Unit Institute for Environment and Sustainability (IES) Joint Research Centre (JRC), European Commission TP 261, Via Enrico Fermi 2749, 21027

Dear List, While trying to define a customised CITATION file for a package, following R-exts, I realised that if I use only one 'citEntry' I got both a text description and a BibTex entry for the package, as for the 'nlme' package: -------------------------- citation('nlme') To cite package 'nlme' in publications use: Jose Pinheiro, Douglas Bates, Saikat

Dear R developers, Taking advantage of the yesterday discussion about the use of Depends/Import/Suggests/Enhances, I would like to add a related question. Let's assume, in the DESCRIPTION file of my package foo0, I have: Depends: foo1 Imports: foo2 while in the NAMESPACE file of my package I have importFrom("foo2", f2) and within my package I use the following two external

Dear list members, Within a loop, I need to create an xyplot with only a legend, not even with the default external box drawn by lattice. I already managed to remove the axis labels and tick marks, but I couldn't find in the documentation of xyplot how to remove the external box. I would really appreciate any help with this ------------- START ----------- library(lattice) x<-1:100

Dear list, I have a question related to the correct interpretation of the relative convergence criterion used by 'optim'. In the help of the function is it written that: "reltol:Relative convergence tolerance. The algorithm stops if it is unable to reduce the value by a factor of reltol * (abs(val) + reltol) at a step." and I was wondering if the previous criterion is

Dear List, I'm building a package that uses 2 functions of the 'sp' package, and I declared them in my NAMESPACE file as follow: importFrom("sp", proj4string, coordinates) The package is built without any problem, but when I load the package, I get the following message: " Loading required package: sp Note: polygon geometry computations in maptools

Dear R listers, I have a data file looks like the following: Testing marker: s_1 --------------------------------------------- Allele df(0) -LnLk(0) df(T) -LnLk(T) ChiSq p 3 7995 29320.30 7994 29311.85 16.90 4e-05 (2229/8000 probands) Testing marker: s_2 --------------------------------------------- Allele df(0)

Dear R developers, Due to the increasing use R in hydrology and other close-related environmental sciences, I would like to ask if it would be possible to create a new Special Interest Group mailing list, called 'R-sig-hydro', specially devoted those topics. If possible to do so, I'd offer myself to maintain such mailing list (if needed). Thanks in advance, Mauricio

Dear List, While using the --as-cran option for checking one of my packages: R CMD check --as-cran hydroGOF_0.3-3.tar.gz I got the following error message: pkgname <- "hydroGOF" > source(file.path(R.home("share"), "R", "examples-header.R")) > options(warn = 1) > library('hydroGOF') Error in loadNamespace(i[[1L]], c(lib.loc,

On 04/11/2017 10:20 PM, Daniel Nordlund wrote: > Tirthankar, > > "random number generators" do not produce random numbers. Any given > generator produces a fixed sequence of numbers that appear to meet > various tests of randomness. By picking a seed you enter that sequence > in a particular place and subsequent numbers in the sequence appear to > be unrelated.

> On 5 Nov 2017, at 15:17 , Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > On 04/11/2017 10:20 PM, Daniel Nordlund wrote: >> Tirthankar, >> "random number generators" do not produce random numbers. Any given >> generator produces a fixed sequence of numbers that appear to meet >> various tests of randomness. By picking a seed you enter

Hi, is there a R function that order a matrix according to some criteria based on the rows(or cols) of that matrix? For example, let's say that my matrix S is composed by n rows S_1, S_2,.., S_n and that I compute some real value g_i=g(S_i) for each row. Then I want to order this set of g_i (from smaller to bigger) and order the correspondent row to the new position. Is it possible (apart

Dear R and hydrological/environmental community, I would like to draw your attention to hydroPSO, a newly developed R package for the calibration/optimisation of (complex) environmental models. hydroPSO implements a state-of-the-art Particle Swarm Optimisation (PSO) algorithm, which is a global optimisation technique with a surge of attention given its flexibility, ease of implementation and

Dear R and hydrological/environmental community, I would like to draw your attention to hydroPSO, a newly developed R package for the calibration/optimisation of (complex) environmental models. hydroPSO implements a state-of-the-art Particle Swarm Optimisation (PSO) algorithm, which is a global optimisation technique with a surge of attention given its flexibility, ease of implementation and

Dear R users and hydrological/environmental community, I'm glad to announce that a major (and recommended) update for the packages hydroTSM and hydroGOF are now available on CRAN: -) hydroTSM: http://cran.r-project.org/web/packages/hydroTSM/ -) hydroGOF: http://cran.r-project.org/web/packages/hydroGOF/ ################### # hydroTSM v0.3-0 # ################### hydroTSM is a package for

Dear R users and hydrological/environmental community, I'm glad to announce that a major (and recommended) update for the packages hydroTSM and hydroGOF are now available on CRAN: -) hydroTSM: http://cran.r-project.org/web/packages/hydroTSM/ -) hydroGOF: http://cran.r-project.org/web/packages/hydroGOF/ ################### # hydroTSM v0.3-0 # ################### hydroTSM is a package for

Hi, my data frame consist of 8 Variables and 120 000 observations. With those datas I am running a PCA and after I want to calculate the Volume of the PCA-cloud of certain subsets of my data. Does anyone have an idea about a function that can do this? Thanks [[alternative HTML version deleted]]

Dear R users, I would like to draw your attention to 'cec2013', a new package providing R wrappers for the 28 benchmark functions defined in the Special Session and Competition on Real-Parameter Single Objective Optimization at CEC-2013 (http://www.cec2013.org/). The focus of this package is to provide an open-source and multi-platform implementation of the CEC2013 benchmark functions,

Dear R users, I would like to draw your attention to 'cec2013', a new package providing R wrappers for the 28 benchmark functions defined in the Special Session and Competition on Real-Parameter Single Objective Optimization at CEC-2013 (http://www.cec2013.org/). The focus of this package is to provide an open-source and multi-platform implementation of the CEC2013 benchmark functions,