// TODO: allow to specify function provider too (need to add new option in UI and context).
public static Regression Create(IFunctionSelector goodnessOfFit)
{
return(new Regression(
functionProvider: new FunctionProviderSimilarToExcel(),
functionSelector: goodnessOfFit
));
}
private static ExcelContextForPhaseTwo <IAnalysisPhaseTwo> CreateExcelContext(
AnalysisContext context)
{
IFunctionSelector goonessOfFit = AnalysisHelper.CreateGoodnessOfFit(
context.GoodnessOfFit
);
Func <ParametersPack, IAnalysisPhaseTwo> analysisFactory =
args => AnalysisHelper.CreateAnalysisPhaseTwo(context.PhaseTwo, goonessOfFit, args);
return(ExcelContextForPhaseTwo <IAnalysisPhaseTwo> .CreateFor(
analysisContext : context,
sheetName : ExcelHelper.CreateSheetName(PhaseNumber),
analysisFactory : analysisFactory
));
}
internal static IAnalysisPhaseTwo CreateAnalysisPhaseTwo(
PhaseTwoAnalysisKind phaseTwo, IFunctionSelector goodnessOfFit, ParametersPack args)
{
phaseTwo.ThrowIfNull(nameof(phaseTwo));
if (PhaseTwoAnalysisKind.NormalDistribution.Equals(phaseTwo))
{
// TODO: add formulas for solution based on Sturges's formula.
throw new NotImplementedException(
"Normal distribution analysis for phase 2 is not implemented."
);
}
if (PhaseTwoAnalysisKind.BetaDistribution.Equals(phaseTwo))
{
var regression = Regression.Create(goodnessOfFit);
return(new BetaDistributionAnalysisPhaseTwo(args, regression));
}
throw new ArgumentOutOfRangeException(
nameof(phaseTwo), phaseTwo,
$"Unknown analysis kind for phase 2 value: {phaseTwo.ToLogString()}"
);
}
public Regression(IFunctionProvider functionProvider, IFunctionSelector functionSelector)
{
_functionProvider = functionProvider.ThrowIfNull(nameof(functionProvider));
_functionSelector = functionSelector.ThrowIfNull(nameof(functionSelector));
}