private SampleSelecter MakeBlockSampleSelector()
{
SampleSelecter selecter = null;
int iFrequency = (int)this.InsuranceFrequency;
int frequency = (int)this.SamplingFrequency;
if (frequency == 0) { selecter = null; }
else
{
selecter = new FMSC.Sampling.BlockSelecter(frequency, iFrequency);
}
return selecter;
}
public void TestBlockSelecter()
{
decimal tolarance = .01m;
int freqency = 15;
int iFrequency = 0;
BlockSelecter selecter = new BlockSelecter(freqency, iFrequency);
int numSamples = freqency * 2 * 5 * 1000;
int[] results = new int[numSamples];
int totalSamples = 0;
int totalISamples = 0;
for (int i = 0; i < numSamples; i++)
{
SampleItem item = selecter.NextItem();
if (item != null && item.IsInsuranceItem)
{
results[i] = 2;
totalISamples++;
}
else if (item != null && item.IsSelected)
{
results[i] = 1;
totalSamples++;
}
else
{
results[i] = 0;
}
}
Assert.IsTrue(selecter.ITreeFrequency == iFrequency);
this.TestContext.WriteLine(" numsamples = {0}", numSamples.ToString());
this.TestContext.WriteLine("total samples = {0}", totalSamples.ToString());
this.TestContext.WriteLine("total Isamples = {0}", totalISamples.ToString());
decimal observedFreq = (totalSamples / (decimal)numSamples);
decimal observediFreq = (totalISamples / (decimal)totalSamples);
this.TestContext.WriteLine("Observed freq = {0}", observedFreq.ToString());
this.TestContext.WriteLine("Observed iFreq = {0}", observediFreq.ToString());
decimal dFreq = Math.Abs((1 / (decimal)freqency) - observedFreq);
this.TestContext.WriteLine("delta freq = {0}", dFreq.ToString());
bool freqInTolarance = Math.Abs((1/(decimal)freqency) - observedFreq) <= tolarance;
Assert.IsTrue(freqInTolarance);
if (iFrequency > 0)
{
decimal dIFreq = Math.Abs((1 / (decimal)iFrequency) - observediFreq);
this.TestContext.WriteLine("delta iFreq = {0}", dIFreq.ToString());
bool ifreqInTolarance = Math.Abs((1 / (decimal)iFrequency) - observediFreq) <= tolarance;
Assert.IsTrue(ifreqInTolarance);
}
}