similar to: error with solveLP(linprog) (PR#11721)

Dear R team! =20 I found in HTML help for function solveLP(linprog) a small mistake. It says in Description "Minimizes c'x, subject to A x >=3D b and x >=3D 0", but tests show that there should be A x <=3D b. =20 Best regards, =20 Ludek =20 =20 [[alternative HTML version deleted]]

Hi everyone, i?m a new user of R and i?m trying to translate an linear optimization problem from Matlab into r. The matlab code is as follow: options = optimset('Diagnostics','on'); [x fval exitflag] = linprog(f,A,b,Aeq,beq,lb,ub,[],options); exitflag fval x=round(x); Where: f = Linear objective function vector (vector of 45,rows) A = Matrix for linear inequality

Hi, I am using R in one of my courses. I am trying to use R's linprog package to solve to formulate 2-class classification problem as Linear programming problem. For my formulation, I need to set to "cvec" to all 0s. I know the points are linearly separable so an optimal solution "x" does exist, which satisfies all the constraints. But given the constraints and setting

Dear all is there any linear programming routine available for R? if not, can you suggest any alternatives? not need to be very powerful, I get only a samll problem to resolve. many thanks yong

Hi, I'm an R newbie and I've been struggling with a optimization problem for the past couple of days now. Here's the problem - I have a matrix of expected payouts from different stock option strategies. Each column in my matrix represents a different stock and each row represents the return to the strategy given a certain market move. So the rows are not a time series of percentage

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Greetings I'm a total newbie in R and I'm trying to make a comparisson of Excel and R in the fields of: - optimisation modeling (using solver) - decision trees - simulation modeling as described in Winston, Wayne L.: Practical Management Science. for optimisation modeling in Excel I would normaly use solver. In R however I can't seem to be able to find the solution. I've

Hi. I am aware of three different R packages for linear programming: glpk, linprog, lpSolve. From what I can tell, if there are N variables and M constraints, all these solvers require the full NxM constraint matrix. Some linear solvers I know of (not in R) have a sparse matrix input format. Are there any linear solvers in R that have a sparse matrix input format? (including the

Dear all, I am trying to find a solution satisfying the below equations in R. Set up the problem 9 X1+ X2 + X3 = 2 X1+ X2 + X3 = 1 which is subjected to 0 < X1 < X2 < X3 < 2. I have downloaded the packages \'linprog\' and \'lpSolve\' but can not see how to solve the question. Thank you for your help. With

Hi list, I want to find the total maximum resources I can spend given a set allocation proportion and some simple budget constraints. However, I get suboptimal results via lp and friends (i.e. lpSolve and simplex in the linprog and boot) . For example: library(lpSolve) proportions = c( 0.46, 0.28, 0.26) constraints = c( 352, 75, 171) lp(objective.in = proportions, const.mat =

Hello, I am trying to get a package to pass R CMD check on an iMac running Mac OS X. When the package is named safeBinaryRegression I get the following warning from R CMD check: * checking whether the name space can be loaded with stated dependencies ... WARNING Error in dyn.load(file, DLLpath = DLLpath, ...) : function 'make_lp' not provided by package 'lpSolveAPI'

Hi, I wrote a package for linear programming and want to submit it to CRAN. Since the package 'quadprog' has a function with the name 'solve.QP' to perform Quadratic Programming, I named my (main) function 'solve.LP'. However 'R CMD check' gives one warning: * checking generic/method consistency ... WARNING solve: function(a, b, ...) solve.LP:

Hi All Please see the Rprofile file which i have modified as follows and after that when I start R then I see that R says to me "TRUE" for all the packages implying that all loaded at once. But when i try to use commands as simple as help("lm"), it doesnt work nor any of the menu "Packages" is not working. Although the regression using lm ( Y ~ X ) is working

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 was playing around with a simple example using solve.qp ( function is in the quadprog package ) and the code is below. ( I'm not even sure there if there is a reasonable solution because I made the problem up ). But, when I try to use solve.QP to solve it, I get the error that D in the quadratic function is not positive definite. This is because Dmat is zero because I don't have a

Hola a todos, Simplemente comentar que me tengo encontrado con muchos problemas de optimización. Mi recomendación general, en el caso multidimensional y si el tiempo de computación es importante, sería buscar un algoritmo diseñado para el tipo de problema (evitar los algoritmos más generales tipo optim si puede haber problemas de mínimos locales). Algunos casos que tengo resuelto con R

Right now I am using page.remove and page.insert for some complex nested moves in RJS. I have my draggables set to revert, but they also revert when they hit a droppable. Meaning, the draggable will start reverting for part of a second before the page.remove kicks in. Is there a way to specify :revert => false for the drop_receiving_element, or something else to that affect? -- Respectfully:

Hello, CDR fans! I'm looking at some issues brought forward over time: 12726/10668: someone wants me to revert the changes I made via bug 10668, last Sept; (that's they are messing him up. And I didn't do the change suggested in ForkCDR, for fear of lousing up folks depending on current behavior. Which probably sparked: 11721 :

====================================================== "There's hair in this tuna fish... I like it!" ALF ====================================================== Release Announcements --------------------- This is the latest stable release of Samba 4.3. Changes since 4.3.9: -------------------- o Jeremy Allison <jra at samba.org> * BUG 10618: Do

====================================================== "There's hair in this tuna fish... I like it!" ALF ====================================================== Release Announcements --------------------- This is the latest stable release of Samba 4.3. Changes since 4.3.9: -------------------- o Jeremy Allison <jra at samba.org> * BUG 10618: Do