similar to: Problems installing fPortfolioSolver

After accusing someone of typing 'install.packages("weather")' instead of 'install.packages("webmaps")', I discovered that R-forge really is currently returning the wrong source tarball for packages after 'Repitools' in the alphabet. The data returned from available.package in install.packages goes out of sync at 'Repitools': RemoteREngine

Hello I have downloaded the fPortfolioSolver package from R-forge but I have not been able to install it. I don't know exactly where I should place the file and which commands to give R. Could somebody please help me with this. Thank you Felipe Parra [[alternative HTML version deleted]]

Hi, I'm new to R, and at this phase, I don't really even know how to learn how to use R. I want to use R and Symphony together. CAn I use Symphony on a windows based machine? I downloaded Symphony 5.2.0, and when I hit to install it, I'm getting an error that I can't get past. "Bad end of central directory record" Now, let's say I miraculously am able to install

Hi list, Please tell me why sometimes RSymphony.dll crashes on Windows 7 (may be on other Windows too). I saw that it depends on input data. For example this code bring to crash: library('Rsymphony') mat = c(0, 1, -100.37967, 0, 0, 1, 0, 0, -200, 0, 0, 1, -0.4, 0, 0, 1, 0, 0, -0.4, 0, 0.5, 0, 0, 0, 0, 0, -1, 0, 0, 0) mat = matrix(mat, nrow=6, byrow=TRUE) mat dir = c("=",

Good Evening Does anyone in the R-help list have experience writing an R wrapper that interfaces with the commercial packages LINGO and/or LINDO.api from R? I have a set of nonlinear/mixed integer problems that solve nicely with LINGO but I would like to use R to set the problems up and analyze/plot the solutions dynamaically. I have searched the archives and have not found any R packages that

Dear everyone, I don't know much about Integer Programming but am afraid I am facing a problem that can only be solved via Integer Programming. I was wondering if those of you who have experience with it could recommend an R package. I found the following R packages: Rglpk glpk lpSolve lpSolveAPI Are there any others? Are some of them easier to use than others for a beginner? Any advice

Hello All, Could anybody point me out any port of "Global Optimization Test Problems" OR "Constraint Satisfaction Test Problems" part of Coconut[%] benchmark or other such similar benchmarks for R. [%] Coconut benchmark: http://www.mat.univie.ac.at/users/neum/public_html/glopt/coconut/Benchmark/Benchmark.html Cheers! Isa [[alternative HTML version

I'll appreciate the help on the following problem: I solved many Nonlinear programming problems with nonlinear constraints....Rdonlp is working well but i am unable to get INTEGER data with nonlinear constraints in Rdonlp. Is it possible to get Integer Values of parameters in any package of R with nonlinear constraints. Rahul [[alternative HTML version deleted]]

Dear all, I would like to solve a problem similar to a multiple knapsack problem and am looking for a function in R that can help me. Specifically, my situation is as follows: I have a list of n items which I would like to allocate to m groups with fixed size. Each item has a certain profit value and this profit depends on the type of group the item is in. My problem is to allocate the items

Hi, I have what I think is some kind of linear programming question. Basically, what I want to figure out is if I have a vector of numbers, > x <- rnorm(10) > x [1] -0.44305959 -0.26707077 0.07121266 0.44123714 -1.10323616 -0.19712807 0.20679494 -0.98629992 0.97191659 -0.77561593 > mean(x) [1] -0.2081249 Using each number only once, I want to find the set of five pairs where

Hi list, I have two question relating to the Rsymphony package: a) is there a way to use 'warm starts' ? i.e. if i successively call Rsymphony_solve_LP() with only one constraints change, does it perform the optimization from the simplex-origin or does it uses the previously found solution [i.e. as is common usage, see for instance lpsolveAPI] b) to what extend are sparse matrix

There was mention of this [r-sig-fedora at r-project.org] mailing list on one of the other R lists overnight. I thought the list needed a bit of posting, as I could not recall seeing content recently on it. I cross post to the Red Hat hosted list as well, it raises issues relevant there as well I have been packaging in support of many of the financial packages at CRAN and in R-Forge [

Hi I am unable to try out examples from the Rmetrics Ebook from the R command prompt. Below is an example of what happens: > Covariance<-cov(SWX.RET) Error in cov.timeSeries(SWX.RET) : no slot of name "Data" for this object of class "timeSeries" I have loaded Rmetrics and fPortfolio using the library function but still I get these errors. However, if I embed the R

Download of the fEcofin fails from: http://cran.r-project.org/bin/windows/contrib/r-release/fEcofin_260.72.z ip results in IE complaining Internet Explorer cannot display the webpage Most likely causes: You are not connected to the Internet. The website is encountering problems. There might be a typing error in the address. I set up the site to be trusted, and switched off all

I have a problem wirh R: After loding fBasics packages log funtion doesn't work like as fallow: Cenap ERDEMIR Hacettepe University Turkey > log(20) [1] 2.995732 > local({pkg <- select.list(sort(.packages(all.available = TRUE))) + if(nchar(pkg)) library(pkg, character.only=TRUE)}) Loading required package: fImport Loading required package: fSeries Loading required package: robustbase

Dear R-help, I'm trying to load the fGarch package and keep running into problems with tcltk: After succesfully instaling fGarch (and dependencies) I get: >library(fGarch) Loading required package: fBasics Loading required package: fImport Loading required package: fSeries Loading required package: robustbase Loading required package: fCalendar Loading required package: MASS Loading

What is the problem here? I did an install package from the Rgui menu. Windows Vista <SNIP> trying URL 'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.9/mvtnorm_0.9-8.zip' Content type 'application/zip' length 236089 bytes (230 Kb) opened URL downloaded 230 Kb trying URL 'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.9/QRMlib_1.4.4.zip' Content type

Dear R helper: When I was trying to install the fCalendar package, R report the following error and then my installation failed: * Installing *source* package 'fCalendar' ... ** R ** inst ** preparing package for lazy loading Loading required package: MASS Loading required package: fEcofin Loading required package: fUtilities Loading required package: RUnit RUnit 0.4.17 loaded.

A newbie here - please forgive me if this is a basic question. We have an in house package built in R 2.2.1 (yes we're a little behind the times at our firm)and would like to rebuild it using R 2.5.1. However, when I try and build the package from source, I keep getting this error: Error in as(slotVal, slotClass, strict = FALSE) : no method or default for coercing "POSIXt"

Helo, please look at the log below: after loading the fSeries library, I can not use the log function. Is this a bug or what am I doing wrong? Because of this, I'm unable to use the garch library. thanks a lot for any help, Balazs Torma > log(1) [1] 0 > require("fSeries") Loading required package: fSeries Loading required package: robustbase Loading required package: