Version 3.2 (R2011b) Global Optimization Toolbox Software

This table summarizes what's new in Version 3.2 (R2011b).

New Features and Changes	Version Compatibility Considerations	Fixed Bugs and Known Problems
Yes Details below	Yes–Details labeled as Compatibility Considerations, below. See also Summary.	Bug Reports

New features and changes introduced in this version are described here:

• Mixed Integer Nonlinear Programming in Genetic Algorithm Solver

• New Demo

• Conversion of Error and Warning Message Identifiers

Mixed Integer Nonlinear Programming in Genetic Algorithm Solver

The ga function now allows you to specify that certain variables are integer valued. When you include integer constraints, you can have any objective function, bounds, and inequality constraints, but you cannot directly include equality constraints. To try to circumvent this limitation, see No Equality Constraints.

For details on mixed-integer programming, see the ga function reference page or Mixed Integer Optimization.

New Demo

There is a new demo of ga for mixed integer programming. Run the demo at the MATLAB command line by entering echodemo weldedBeamDemo.

Conversion of Error and Warning Message Identifiers

For R2011b, error and warning message identifiers have changed in Global Optimization Toolbox.

Compatibility Considerations

If you have scripts or functions that use message identifiers that changed, you must update the code to use the new identifiers. Typically, message identifiers are used to turn off specific warning messages, or in code that uses a try/catch statement and performs an action based on a specific error identifier.

For example, the 'globaloptim:EQNSOLV:sparseToFull' identifier has changed to 'globaloptim:eqnsolv:eqSparseToFull'. If your code checks for 'globaloptim:EQNSOLV:sparseToFull', you must update it to check for 'globaloptim:eqnsolv:eqSparseToFull' instead.

To determine the identifier for a warning, run the following command just after you see the warning:

[MSG,MSGID] = lastwarn;

This command saves the message identifier to the variable MSGID.

To determine the identifier for an error, run the following command just after you see the error:

exception = MException.last;
MSGID = exception.identifier;

Tip   Warning messages indicate a potential issue with your code. While you can turn off a warning, a suggested alternative is to change your code so it runs warning free.

Version 3.2.1 (R2012a) Global Optimization Toolbox Software

Version 3.1.1 (R2011a) Global Optimization Toolbox Software

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