cplex

问题 I am trying to link R, version 3.2.0, with CPLEX. I have used the following commands to install "cplexAPI" package: 1- install.Rtools() 2- install.packages("cplexAPI") I have installed Rtools successfully but I am getting an error saying "ilcplex/cplex.h: No such file or directory" in "cplexAPI" installation. Could you please help me out here? 回答1: You can install cplexAPI manually: R CMD INSTALL --configure-args=" \ --with-cplex-include=/path/to/cplex_include/dir \ --with-cplex-lib=/path/to

问题 I build my mathematical model using DOcplex IBM package for Python. I am sure that the other part of the modeling is correct, however when the call to Model.solve() is executed, and I get the following error: "CPLEX DLL not found: please provide DOcplexcloud credentials" I have CPLEX Studio 12.6 installed on my pc, and I want to solve the problem locally not on cloud. 回答1: It sounds like you do not have the CPLEX Python API "installed". By default, when you install CPLEX Optimization Studio

问题 I build my mathematical model using DOcplex IBM package for Python. I am sure that the other part of the modeling is correct, however when the call to Model.solve() is executed, and I get the following error: "CPLEX DLL not found: please provide DOcplexcloud credentials" I have CPLEX Studio 12.6 installed on my pc, and I want to solve the problem locally not on cloud. 回答1: It sounds like you do not have the CPLEX Python API "installed". By default, when you install CPLEX Optimization Studio

问题 Is there any way to run a CPLEX OPL project using Matlab? Code will be written in CPLEX solver but it will be triggered (RUN) by Matlab. 回答1: Although I have not tried, this should be possible. You can use oplrun to "execute OPL models and projects from the command line". And, in MATLAB you can use system to "execute operating system command and return output". Combining the two should do the trick. 来源： https://stackoverflow.com/questions/40296416/triggering-cplex-using-matlab

问题 I am trying to link R with the IBM Cplex studio but unable to do so. First I installed the Cplex studio on my desktop. Next I directly tried installing the 'Rcplex package' in R but got a configuration error. "configure: error: CPLEX include directory ./include does not exist:" Next I researched a bit to find the solution and found out that the Rcplex package requires the CPLEX include directory. I then tried to add arguments in the installation through Terminal but no success. Source : https

问题 I faced a problem while using addMIPStart(). At first, for testing purpose, I took a generalized assignment problem (has only one set of binary decision variables x[i][]j) and add a bound using addMIPStart(). It has worked perfectly. But, when I was trying the same on my own problem, I got an error problem CPLEX: " IloExtractable 189 IloNumVarl has not been extracted by Iloalgorithm 000001ECF89B160 ". In my problem, there are four types of variables: x[k][p][t] = IloNumVar(env, 0.0, 1, ILOINT

问题 everyone! I'm having problems to get variables x values after solving the model. x variables are a four index variables. I define the structs: #define ILOARRAYNUM2 IloArray<IloNumArray> #define ILOARRAYNUM3 IloArray<ILOARRAYNUM2 > #define ILOARRAYNUM4 IloArray<ILOARRAYNUM3 > typedef IloArray<IloNumVarArray> NumVar2Array; typedef IloArray<NumVar2Array> NumVar3Array; typedef IloArray<NumVar3Array> NumVar4Array; The variables x are defined as: NumVar4Array x; ILOARRAYNUM4 _x; mono.x =

问题 I inherited an old program from a colleague that is no longer with the company. It's an CPLEX optimization we use. It was built in house in C++ using Visual Studio 2005 and CPLEX121. The server where it's located is being decommissioned and we're trying to migrate it to a new server. I'm trying to rebuild the new application in Visual Studio 2013 using CPLEX126 for the optimizations. Error I get is: Description: error LNK2038: mismatch detected for '_MSC_VER': value '1600' doesn't match value

问题 I inherited an old program from a colleague that is no longer with the company. It's an CPLEX optimization we use. It was built in house in C++ using Visual Studio 2005 and CPLEX121. The server where it's located is being decommissioned and we're trying to migrate it to a new server. I'm trying to rebuild the new application in Visual Studio 2013 using CPLEX126 for the optimizations. Error I get is: Description: error LNK2038: mismatch detected for '_MSC_VER': value '1600' doesn't match value