search for: minlp

...o ya tenga que ser como mínimo a_i y como máximo b_i Esto lo he puesto de la siguiente manera: \sum w_i * f(x_i) donde como antes a_i < x_i < b_i \sum w_i * f(x_i) < Presupuesto Y donde ahora, w_i quiero que sea binario (entero). Por lo que he estado viendo esto es un problema de MINLP: Mixed Integer Non Linear Problem Buscando un poco y mirando en el task view de optimización de cran no he conseguido encontrar nada para esto... See que a lo mejor R no es la herramienta más potente para esto, pero mi idea es hacer un pequeño interfaz con shiny y como en general en estos casos...

...is a more or less outdated supercomputer today). The system was built in strict ANSI C and it can be connected to computational algorithms through an accelerator function. We can solve problems using pure classical optimization tools on the one extreme (global, constrained (linear,nonlinear, milp,minlp etc)) and pure genetic search on the other. We can also use hybrid approaches where various classical/artificial intelligence approaches are combined. GHA may be used as a subsystem to other programs or as the main system using other systems as subsystems (libraries). As I am not an expert in R, i...

...is a more or less outdated supercomputer today). The system was built in strict ANSI C and it can be connected to computational algorithms through an accelerator function. We can solve problems using pure classical optimization tools on the one extreme (global, constrained (linear,nonlinear, milp,minlp etc)) and pure genetic search on the other. We can also use hybrid approaches where various classical/artificial intelligence approaches are combined. GHA may be used as a subsystem to other programs or as the main system using other systems as subsystems (libraries). As I am not an expert in R, i...

Hi, I am attempting to solve a Mixed Integer Non Linear Program using R. I am aware of the GLPK package that solved mixed integer linear programs, and the Rdonlp2 package that solve linear programs. Is there any package that that solves the MINLP case? Any info or pointers would be greatly appreciated. Jonathan.

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]]

Are there any packages that do non-linear integer otimization? Looked at lpSolve but i'm pretty sure it only works with linear programming and not non-linear, tried "L-BFGS-B" optim after flooring all my params, works somewhat but seems really inefficient. Anything else I should look at? -- View this message in context:

For an application in image processing -- using R for statistical purposes -- I need to solve the following task: Given n (e.g. n = 100 or 200) points in the unit square, more or less randomly distributed. Find a rectangle of maximal area within the square that does not contain any of these points in its interior. If a, b are height and width of the rectangel, other constraints may have to be

Dear List, My student and I are looking for an optimizer for a nonlinear optimization problem we are working on. The problem we are working on is to try to pick a set of islands on which to eradicate rats for seabird conservation. We have about 50 islands, each of which has some subset of 17 seabird species. Rats are present on all islands, and will cause the seabirds to go extinct unless they