public static string SaveToTextFile(CombiModel combiModel, string path)
{
using (var streamWriter = new StreamWriter(path))
{
var algRows = combiModel.AlgorithmRows;
var i = 0;
foreach (var combiRowModel in algRows)
{
streamWriter.WriteLine($"Step #{++i}:");
foreach (var model in combiRowModel.Models)
{
streamWriter.WriteLine(model.ToString());
}
streamWriter.WriteLine($"{combiRowModel.BestModel.ToString()} Outer criteria: {combiRowModel.OuterCriteriaValueOfBestModel}");
}
}
return(path);
}
public CombiModel RunAlgorithm(int maxComplexity = 20)
{
var models = new List <CombiRowModel>();
var setsOfModelsByComplexity = GetAllModelsOfIncreasingComplexity(maxComplexity);
foreach (var modelsSet in setsOfModelsByComplexity)
{
var setDataModel = new CombiRowModel();
var currentComplexityModelsParams = modelsSet.Select(model =>
{
var modelObj = new EquationModel()
{
Coeficients = model
};
var paramsForModel = internalCriteria(_trainingData, _trainingValues, model);
var mappedCoefsToModelParams = MapCoeficientsToModel(model, paramsForModel.Item1);
modelObj.CoeficientValues = mappedCoefsToModelParams;
modelObj.InnerCriteriaValue = paramsForModel.Item2;
return(modelObj);
});
setDataModel.Models = currentComplexityModelsParams.ToList();
var bestModelForSet =
currentComplexityModelsParams.Aggregate(
(m1, m2) => m1.InnerCriteriaValue < m2.InnerCriteriaValue ? m1 : m2);
setDataModel.BestModel = bestModelForSet;
var externalCriteriaValue = externalCriteriaFunc(bestModelForSet, _checkingValues, _checkingData);
setDataModel.OuterCriteriaValueOfBestModel = externalCriteriaValue;
models.Add(setDataModel);
}
var bestModel = GetBestModel(models);
var combiModel = new CombiModel()
{
BestModel = bestModel,
AlgorithmRows = models
};
return(combiModel);
}