Enumerations
Data restricted to specific values for code
                                        acceleration
Enumerations represent a fixed set of named values. Enumerations help make your MATLAB® code more readable. For acceleration, enumeration classes must derive from built-in integer types.
Topics
- Code Generation for EnumerationsUse enumerations in MATLAB code intended for code generation. 
- Customize Enumerated Types in Generated CodeSpecify a default enumerated value, use an externally defined enumerated type, and control enumerated type value names.