/// <summary>
/// Creates a new <see cref="EvolutionaryDistanceCalculator{TProgram,TOutput}" /> with the given arguments.
/// </summary>
/// <param name="similarityMeasure">The similarity measure to guide the transformation search process.</param>
/// <param name="primitiveSet">The primitives used for the crossover operator.</param>
/// <param name="crossovers">The crossover operators to generate programs during the search.</param>
/// <param name="mutations">The mutation operators to generate programs during the search.</param>
public EvolutionaryDistanceCalculator(
ISimilarityMeasure <TProgram> similarityMeasure,
PrimitiveSet <TProgram> primitiveSet,
IEnumerable <ICrossoverOperator <TProgram> > crossovers,
IEnumerable <IMutationOperator <TProgram> > mutations)
{
this._similarityMeasure = similarityMeasure;
this._primitiveSet = primitiveSet;
this._crossovers = crossovers;
this._mutations = mutations;
}
/// <summary>
/// Creates a new <see cref="MathExpressionConverter" /> according to the given primitive set.
/// </summary>
/// <param name="primitives">The set containing the primitives that the converter can read from the expressions.</param>
public MathExpressionConverter(PrimitiveSet <MathProgram> primitives)
{
var allPrimitives = new List <MathProgram>(primitives.Functions);
allPrimitives.AddRange(primitives.Terminals);
// stores info on all primitive labels
foreach (var primitive in allPrimitives)
{
this._primitiveLabels.Add(primitive.Label, primitive);
}
// stores regex patterns for functions
var rndLabel = DateTime.Now.ToString("yyyyMMMMddHHmmssfff");
var dummy = new Variable(rndLabel);
foreach (var function in primitives.Functions.ToList())
{
var pattern = GetFunctionPattern(function, dummy);
this._functionPatterns.Add(pattern, function);
}
}
/// <summary>
/// Adds the functions and terminals in the given <see cref="PrimitiveSet{TProgram}" /> to this set.
/// </summary>
/// <param name="primitiveSet">The set containing the functions and terminals to be added to this set.</param>
public void Add(PrimitiveSet <TProgram> primitiveSet)
{
this._terminals.AddRange(primitiveSet.Terminals);
this._functions.AddRange(primitiveSet.Functions);
}
