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Decision Optimization CPLEX & For Watson Studio

Showing 60

Adding a warning when a data source are not populate in a model

Once data elements are read once, adding a new data source has no effect. A warning that tells that adding a new data source after had no effect will help to debug. Here is an example. The observe problem was that no data where send to the ...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Create IloAddable::setObject() in Java API

In the C++ API, there is the method IloExtractable::setObject()In the Java API, there is no equivalent on IloAddable. This is needed because it is useful to create a new IloIntVar from cplex.intVar(), and then associate a Java object to that vari...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Add a timestamp to iterations reported in the Engine Log of CPLEX Optimization Studio

Add a timestamp to the output of the Engine Log for iterations of the solver (LP/MIP) in addition to the already existing report of the objective value and GAP.
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

OPL Script function to see which variables exist in model

Using OPL script, is it possible to know whether a given variable name exists in model ?For instance, something like model.contains("x") that would return true if x is a variable in model.If yes, is there any way of knowing the type and the indic...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Solve MPS, SAV, .... model file in CPLEX studio

LP file can be run in the IDE. great.but MPS or other type of file can not be
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

support for date in OPL

Manipulating Date in OPL is tedious. One needs to load them as string, then use script to convert them in date and access fields of this script object (month / year ...). Furthermore, it is not even possible to create a Date from a string in scrip...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Function to Add tuple to a set in OPL not only in OPLscript

Have an OPL fucntion to add tuple to a set.It will avoid to use OPL script to populate them whish is slow and increase complexity of modeling.A work around that I use it to create identical Set of tuple in OPL and use OPLscript to just copy them i...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

If conditions in pre-processing in .mod files

To maintain two (or more) similar models in one instead of in two (or more) separate .mod files, we need the possibility of using if conditions in pre-processing in .mod files without using execution blocks.
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

cpoptimizer interactive should display any var and expressions

CP Optimizer interactive should mimic CPLEX optimizer interactive for these two points 1. In Cp Optimizer command line, enable to display the value of an IloNumVar (floating point variables) and IloNumExpr2. enable write solution in a file
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Excel or/and .ods connector in OPL IDE on all platform

On Linux or Mac the only way to import data in the IDE is to write a custom OPLscript to inport a CSV file.
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration