similar to: an optimization problem and installation of the package Rcplex

Dear All,   I have difficulty in installing the package of Rcplex. Its description web is at http://cran.r-project.org/web/packages/Rcplex/index.html   First, I tried -------------------------------------------------------------------------------------------------- url <- "http://cran.r-project.org/src/contrib/Rcplex_0.3-0.tar.gz"; download.file(url, basename(url),

Dear List, I'm trying to install Rcplex on a ubuntu 64 bit machine, and have not been successful. After installing cplex latest version from ibm's website (everything as standard, except had it installed unto ~/ (the home directory) rather than the default directory). i type (from inside the directory where Rcplex_0.3-0.tar.gz is): >CPLEX_INCLUDE_PATH=~/ILOG/CPLEX/cplex

Dear all, I want to work with R in an optimization problem and I was wondering if there are any available solvers. I found RCplex package but downloading it, I get problems. Why? Is it not free? are there any other solvers available? many thanks! -- View this message in context: http://r.789695.n4.nabble.com/Cplex-solver-and-optimization-in-R-tp3703385p3703385.html Sent from the R help

Hi, I have tried to install the R package Rcplex on windows xp without success. I have only cplex_studio124.win-x86-32 version. I have modified the makevars.win file as indicated in the installation guide ( http://cran.r-project.org/web/packages/Rcplex/INSTALL ), then I zipped the whole folder to order an installation from a zipped file (utils :menuInstallLocal()) The message I had is file

Hi, I am writing a function to plot a pdf of a distribution, GNL.pdf.fn = function(x,mu,sigma,alpha,beta,rho) { y = x-rho*mu cf.fn = function(s){ cplex = complex(1,0,1) temp1 = alpha*beta*exp(-sigma*s^2/2) temp2 = (alpha-cplex*s)*(beta+cplex*s) out = (temp1/temp2)^rho out } temp.fn = function(s){ (Mod(cf.fn(s)))*cos(Arg(cf.fn(s))-s*y) } int.fn =

The VNC server just listens to the appropriate TCP/IP port and then runs Xvnc which does the actual VNC communication. Ideally I'd be able to do the same thing for RDP then the daemon doesn't get any more complicated, and a bug in the RDP layer can't crash the server. I don't know enough about how NX works but I suspect we could do the same thing as for VNC and RDP. I'm

Dear R-experts, this is not a direct R-problem but I hope you can help me anyway. I would like to minimize || PG-I || over P, where P is a p x p permutation matrix (obtained by permuting the rows and/or columns of the identity matrix), G is a given p x p matrix with full rank and I the identity matrix. ||.|| is the frobenius norm. Does anyone know an algorithm to solve such a problem? And if

Hi, I have a complex-valued vector X in C^n. Given another complex-valued vector Y in C^n, I want to find a permutation of Y, say, Y*, that minimizes ||X - Y*||, the distance between X and Y*. Note that this problem can be trivially solved for "Real" vectors, since real numbers possess the ordering property. Complex numbers, however, do not possess this property. Hence the

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

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]]

A while ago I decided to simply download and install every package on CRAN (disk space is cheap these days...). In the process, I kept loose track of which packages generated one or more 'compilation errors' during the install process (machine runs 64-bit Fedora 8, gcc 4.1 etc. etc). Most of the errors seemed to occur in packages I have little need for at present, but as a courtesy, I

Hello everybody! I'm trying some datamining, but i'm having some problems with arule package, in the end of processing R "had to be closed". I already tryied to reinstall the 2.10 version, change the computer and realocated more virtual memory. Does anyone had this problem to? I had a hiphoteses that i have to prepare the data, somehow i don't know. Thanks for helping!!!

We have a setup in which we use PHP (with Geeklog as a CMS) as a front end to MySQL. We plan to use R for offering user driven and automated statistical analysis of some of the data we obtain. We'll be using the R interface to the MySQL database from omegahat (www.omegahat.org) for getting the data out of the database, but we were wondering if somebody tackled the problem of how to integrate

At office I have been introduced by another company to new, complex energy forecasting models using gams as the basic software. I have been told by the company offering the models that gams is specialised in dealing with huge, hevy-weight linear and non-linear modelling (see an example in http://www.gams.com/modtype/index.htm) and they say it is almost the only option for doing it. I would

CRAN (and crantastic) updates this week New packages ------------ Updated packages ---------------- New reviews ----------- This email provided as a service for the R community by http://crantastic.org. Like it? Hate it? Please let us know: cranatic at gmail.com.

Hello, I was asked a question regarding centos that i do not know the answer. I don't use gnome or x on any box i deploy for production use so haven't checked in to this. CentOS4 comes with gnome 2.8 from what i was told, the question is is it possible to do an update rpmwise to gnome 2.12 via yum? If so, what repositories do i need to enable to pull this off and what if any

What is the easiest way to allow normal users to install printers (which are available through a Samba server)? Normally, Windows 2000 and XP need to have a printer installed by the admin first on a given workstation - only the it can be used by the user. I want to allow the user to install own printers. Now, when one trises to right click on a printer on a server and "connect", he

Hi I am using Centos 4.3 to host various web sites that I maintain. I am finding that I am getting more and more, and I have thought of setting up a hosting server to make things quicker for my self. I have setup webmin with virtualmin and it seems to work fine so far. What is everyone else using. I don't want to invest alot of money, but would like some thing that is quick and easy to

Okay, I have a server connected to the net but have not added fail2ban or anything on top of my firewall yet. Thought you guys might get a kick out of this one user, ip is from china, who has got a heck of a knack for making assumptions on possible usernames. Enjoy this..., 8000+ attempts. Scroll down for funky ones. I have no root access enabled on this server and it is pretty bare. Just using

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