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Engine Class
Greg Sommerville edited this page Aug 8, 2018
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1 revision
The genetic engine for Evolutionary.Net. Given a primitive set, a fitness function and a set of options, it will generate a solution to a problem.
| Variation | Description |
|---|---|
| Engine<T,S>() | Initializes a new instance of the engine using default values. Type T is the data type for all candidates. Type S is a user-supplied state information type. |
| Engine<T,S>(EngineParameters) | Initializes a new instance of the engine using the settings specified in the parameter. Type T is the data type for all candidates. Type S is a user-supplied state information type. |
No public properties
| Name | Description |
|---|---|
| AddConstant(T) | Adds a constant of type T to the primitive set |
| AddVariable(string) | Adds a variable with the specified name to the primitive set |
| AddFunction(Func<T,T>, string) | Adds a 1 parameter function to the primitive set. Function returns a value of type T, and the argument to the function is also type T. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddFunction(Func<T,T,T>, string) | Adds a 2 parameter function to the primitive set. Function returns a value of type T, and all arguments are of type T. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddFunction(Func<T,T,T,T>, string) | Adds a 3 parameter function to the primitive set. Function returns a value of type T, and all arguments are of type T. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddStatefulFunction(Func<T,S,T>, string) | Adds a 1 parameter function to the primitive set. Function returns a value of type T, and the argument to the function is also type T. The function also receives a reference to the candidate's state object as its final parameter. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddStatefulFunction(Func<T,T,S,T>, string) | Adds a 2 parameter function to the primitive set. Function returns a value of type T, and all arguments are of type T. The function also receives a reference to the candidate's state object as its final parameter. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddStatefulFunction(Func<T,T,T,S,T>, string) | Adds a 3 parameter function to the primitive set. Function returns a value of type T, and all arguments are of type T. The function also receives a reference to the candidate's state object as its final parameter. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddTerminalFunction(Func<S,T>, string) | Adds a 0 parameter function to the primitive set. Function returns a value of type T. The function also receives a reference to the candidate's state object as its final parameter. The string parameter is the name, which is used when printing a solution via .ToString() |
| AddFitnessFunction(Func<CandidateSolution<T,S>,float>) | Specifies the fitness function to be used to evaluate a candidate. The candidate is passed in as the parameter. The function must return a float fitness score. |
| AddProgressFunction(Func<EngineProgress,bool>) | Specifies the progress callback function. This function is called once per generation with progress information. This function must return a bool, with true meaning that processing should continue, and false indicating that the progress should stop immediately. |
| FindBestSolution() | Uses the provided primitive set, engine parameters, and fitness function to find a solution. |