public void CalculateHypothesisTestResults()
{
// Only perform these calculations if files have been processed and a pair of files (marked and unmarked) are available
bool IsDirty = false;
bool HasValues = false;
HypothesisTest ht = new HypothesisTest();
ProcessCapturePackets pcp = new ProcessCapturePackets();
int markedFileCount = pcp.GetProcessedFilesCountMarked();
int unmarkedFileCount = pcp.GetProcessedFilesCountUnmarked();
ht = pcp.GetHypothesisTestResults();
if (ht != null)
{
HasValues = ht.HasValues;
}
//if (markedFileCount >= 1 && unmarkedFileCount >= 1 && (markedFileCount + unmarkedFileCount) % 2 == 0)
if (markedFileCount >= 1 && unmarkedFileCount >= 1)
{
// Get mean of means test results
HypothesisTest htMeans = new HypothesisTest();
//htMeans = GetMeansHypothesisTestResult();
MeansHypothesisTest mht = new MeansHypothesisTest(_TrimZeroPacketIntervals);
htMeans = mht.GetHypothesisTestResult();
ht.MeansTestResult = htMeans.MeansTestResult;
ht.MeanOfMeansVariance = htMeans.MeanOfMeansVariance;
ht.MeansVarianceStandardDeviation = htMeans.MeansVarianceStandardDeviation;
if(AnalysisConfiguration.HypothesisTestType == HypothesisTestType.MeansTest && htMeans.MeansTestResult)
{
AnalysisConfiguration.FoundCoresidentVm = true;
}
else
{
AnalysisConfiguration.FoundCoresidentVm = false;
}
if (AnalysisConfiguration.HypothesisTestType == HypothesisTestType.KsTestStep)
{
// Get the K-S test results (using step function between probability data points)
HypothesisTest htKsStep = new HypothesisTest();
//htKsStep = GetKsStepHypothesisTestResult();
KsStepHypothesisTest ksht = new KsStepHypothesisTest();
htKsStep = ksht.GetHypothesisTestResult();
ht.KsStatistic = htKsStep.KsStatistic;
ht.MaxCpdVariance = htKsStep.MaxCpdVariance;
ht.KsTestResult = htKsStep.KsTestResult;
ht.HasValues = true;
IsDirty = true;
if(htKsStep.KsTestResult)
{
AnalysisConfiguration.FoundCoresidentVm = true;
}
else
{
AnalysisConfiguration.FoundCoresidentVm = false;
}
}
//else
else if(AnalysisConfiguration.HypothesisTestType == HypothesisTestType.KsTestLinear)
{
// Default: Get the K-S test results (using linear extrapolation between probability data points)
HypothesisTest htKsLinear = new HypothesisTest();
//htKsLinear = GetKsLinearHypothesisTestResult();
KsLinearHypothesisTest klht = new KsLinearHypothesisTest();
htKsLinear = klht.GetHypothesisTestResult();
ht.KsStatistic = htKsLinear.KsStatistic;
ht.MaxCpdVariance = htKsLinear.MaxCpdVariance;
ht.KsTestResult = htKsLinear.KsTestResult;
ht.HasValues = true;
IsDirty = true;
if (htKsLinear.KsTestResult)
{
AnalysisConfiguration.FoundCoresidentVm = true;
}
else
{
AnalysisConfiguration.FoundCoresidentVm = false;
}
}
}
else if(!HasValues)
{
// Default values - only if we haven't previously calculated hypothesis test results
ht.MeanOfMeansVariance = 0;
ht.MeansVarianceStandardDeviation = 0;
ht.MeansTestResult = false;
ht.KsTestResult = false;
ht.HasValues = false;
IsDirty = true;
}
if (IsDirty)
{
// Save the test results
pcp.DeleteHypothesisTestResults();
pcp.InsertHypothesisTestResults(ht);
}
}