public void EstimatePersonLocation_DataFromAyala_ReturnsCorrectFinalQuestion()
{
CATParameters catParameters = GetDefaultCatParameters();
LocationEstimator locationEstimator = new LocationEstimator(_textQuestionLoader, _textAnswerSheetLoader, catParameters);
List <QuestionInfo> questionHistory = locationEstimator.EstimatePersonLocation();
string finalQuestion = questionHistory.Last().Question.QuestionLabel;
Assert.IsTrue(Convert.ToInt32(finalQuestion) == 205);
}
public void EstimatePersonLocation_DataFromAyala_ReturnsCorrectFinalInfo()
{
CATParameters catParameters = GetDefaultCatParameters();
LocationEstimator locationEstimator = new LocationEstimator(_textQuestionLoader, _textAnswerSheetLoader, catParameters);
List <QuestionInfo> questionHistory = locationEstimator.EstimatePersonLocation();
double estimatedInformation = (double)questionHistory.Last().Information;
Assert.IsTrue(Math.Abs(estimatedInformation - .901) < Tolerance);
}
public LocationEstimator(IQuestionLoader questionLoader, IAnswerSheetLoader answerSheetLoader, CATParameters catParameters)
{
_questionLoader = questionLoader;
_answerSheetLoader = answerSheetLoader;
_catParameters = catParameters;
_bestThetaEstimator
= new BestThetaEstimator(
catParameters.IncreasingZeroVarianceStepSize,
catParameters.DecreasingZeroVarianceStepSize,
catParameters.UseDiscriminationParameterForEstimation,
catParameters.Tolerance);
}
private CATParameters GetDefaultCatParameters()
{
CATParameters catParameters = new CATParameters()
{
InformationCutoff = .9,
MaximumNumberOfQuestions = Int16.MaxValue,
MinimumNumberOfQuestions = Int16.MinValue,
SeeCutoff = Double.NegativeInfinity,
//IncreasingZeroVarianceStepSize = .3
};
return(catParameters);
}
public void EstimatePersonLocation_CompletesAnswerSheet2()
{
try
{
CATParameters catParameters = GetDefaultCatParameters();
LocationEstimator locationEstimator = new LocationEstimator(_textQuestionLoader, _textAnswerSheetLoader2, catParameters);
List <QuestionInfo> questionHistory = locationEstimator.EstimatePersonLocation();
Assert.IsTrue(true);
}
catch (Exception)
{
Assert.IsTrue(false);
}
}
public static CATParameters Load(string fileLocation)
{
CATParameters parameters = new CATParameters();
using (var reader = new StreamReader(fileLocation))
{
parameters.MinimumNumberOfQuestions = Convert.ToInt32(reader.ReadLine());
parameters.MaximumNumberOfQuestions = Convert.ToInt32(reader.ReadLine());
parameters.SeeCutoff = Convert.ToDouble(reader.ReadLine());
parameters.InformationCutoff = Convert.ToDouble(reader.ReadLine());
parameters.IncreasingZeroVarianceStepSize = Convert.ToDouble(reader.ReadLine());
}
return(parameters);
}
private static CATParameters ConvertToCatParameters(SettingsInput settingsInput)
{
CATParameters catParameters = new CATParameters()
{
DecreasingZeroVarianceStepSize = settingsInput.DecreasingZeroVarianceStepsize,
IncreasingZeroVarianceStepSize = settingsInput.IncreasingZeroVarianceStepsize,
InformationCutoff = settingsInput.InformationCutoff,
MaximumNumberOfQuestions = settingsInput.MaximumNumberOfQuestions,
MinimumNumberOfQuestions = settingsInput.MinimumNumberOfQuestions,
SeeCutoff = settingsInput.SeeCutoff,
UseDiscriminationParameterForEstimation = settingsInput.UseDiscriminationParamForEstimation,
MistakeProbability = settingsInput.MistakeProbability,
NumQuestionsBeforeCatBegins = settingsInput.NumQuestionsBeforeCatBegins,
Tolerance = settingsInput.Tolerance
};
return(catParameters);
}
static void Main(string[] args)
{
string excelLocationString = GetExcelFileLocationFromUser();
ExcelClient excelClient = new ExcelClient();
Workbook workbook = GetWb(excelLocationString, excelClient);
SettingsInput settingsInput = GetSettingsInput(workbook);
List <ItemInformation> itemInformationList = GetItemInformation(workbook);
List <UserAnswers> answersInput = GetAnswersInput(workbook);
workbook.Close();
CATParameters catParameters = ConvertToCatParameters(settingsInput);
List <string> scaleNames = itemInformationList.Select(x => x.ScaleName).Distinct().ToList();
List <string> personNames = answersInput.Select(x => x.PersonName).Distinct().ToList();
var scoringOutput = GetScores(scaleNames, itemInformationList, personNames, answersInput, catParameters);
WriteOutput(excelLocationString, scoringOutput, excelClient.GetApplication());
}
private static ScoringOutput GetScores(List <string> scaleNames, List <ItemInformation> itemInformationList, List <string> personNames, List <UserAnswers> answersInput,
CATParameters catParameters)
{
List <ScoreDetails> scores = new List <ScoreDetails>();
List <List <QuestionInfo> > questionInfoList = new List <List <QuestionInfo> >();
foreach (var scaleName in scaleNames)
{
List <ItemInformation> itemInfoForScale = itemInformationList.Where(x => x.ScaleName.Equals(scaleName)).ToList();
IQuestionLoader questionLoader = new ExcelQuestionLoader(itemInfoForScale, catParameters.MistakeProbability);
foreach (var personName in personNames)
{
UserAnswers personAnswers = answersInput.Single(x => x.PersonName.Equals(personName));
ScaleAnswers answers = personAnswers.ScaleAnswers.Single(x => x.ScaleName.Equals(scaleName));
IAnswerSheetLoader answerSheetLoader = new ExcelAnswerSheetLoader(answers);
LocationEstimator locationEstimator = new LocationEstimator(questionLoader, answerSheetLoader, catParameters);
List <QuestionInfo> output = locationEstimator.EstimatePersonLocation();
questionInfoList.Add(output);
ScoreDetails scoreDetails = new ScoreDetails()
{
PersonName = personName,
ScaleName = scaleName,
Score = (double)output.Last().ThetaEstimate
};
scores.Add(scoreDetails);
}
}
ScoringOutput scoringOutput = new ScoringOutput()
{
FirstPersonQuestionInfo = questionInfoList.First(),
ScoreDetails = scores
};
return(scoringOutput);
}
public void EstimatePersonLocation_BisectionSolverFailing()
{
CATParameters catParameters = GetDefaultCatParameters();
LocationEstimator locationEstimator = new LocationEstimator(_textQuestionLoader2, _textAnswerSheetLoader4, catParameters);
List <QuestionInfo> x = locationEstimator.EstimatePersonLocation();
}
public void EstimatePersonLocation_CompletesAnswerSheet3()
{
CATParameters catParameters = GetDefaultCatParameters();
LocationEstimator locationEstimator = new LocationEstimator(_textQuestionLoader, _textAnswerSheetLoader, catParameters);
List <QuestionInfo> questionHistory = locationEstimator.EstimatePersonLocation();
}