private static void DoTestAverageAndStdDev(RunningAverageAndStdDev average)
{
Assert.AreEqual(0, average.Count);
Assert.IsTrue(Double.IsNaN(average.Average));
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(6.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(6.0);
Assert.AreEqual(2, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.AreEqual(0.0, average.StandardDeviation, EPSILON);
average.RemoveDatum(6.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(-4.0);
Assert.AreEqual(2, average.Count);
Assert.AreEqual(1.0, average.Average, EPSILON);
Assert.AreEqual(5.0 * 1.4142135623730951, average.StandardDeviation, EPSILON);
average.RemoveDatum(4.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(-2.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
}
public StatsCallable(Action deleg, bool logStats, RunningAverageAndStdDev timing, AtomicInteger noEstimateCounter)
{
this._Delegate = deleg;
this.logStats = logStats;
this.timing = timing;
this.noEstimateCounter = noEstimateCounter;
}
private static void DoTestAverageAndStdDev(RunningAverageAndStdDev average)
{
Assert.AreEqual(0, average.Count);
Assert.IsTrue(Double.IsNaN(average.Average));
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(6.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(6.0);
Assert.AreEqual(2, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.AreEqual(0.0, average.StandardDeviation, EPSILON);
average.RemoveDatum(6.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(6.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
average.AddDatum(-4.0);
Assert.AreEqual(2, average.Count);
Assert.AreEqual(1.0, average.Average, EPSILON);
Assert.AreEqual(5.0 * 1.4142135623730951, average.StandardDeviation, EPSILON);
average.RemoveDatum(4.0);
Assert.AreEqual(1, average.Count);
Assert.AreEqual(-2.0, average.Average, EPSILON);
Assert.IsTrue(Double.IsNaN(average.StandardDeviation));
}
public double GetTransformedValue(Preference pref)
{
RunningAverageAndStdDev meanAndStdev = meanAndStdevs.Get(pref.User);
if (meanAndStdev.Count > 1)
{
double stdev = meanAndStdev.StandardDeviation;
if (stdev > 0.0)
{
return((pref.Value - meanAndStdev.Average) / stdev);
}
}
return(0.0);
}
public static void execute(List <Action> callables, AtomicInteger noEstimateCounter, RunningAverageAndStdDev timing)
{
List <Action> list = wrapWithStatsCallables(callables, noEstimateCounter, timing);
int processorCount = Environment.ProcessorCount;
Task[] tasks = new Task[list.Count];
log.info("Starting timing of {} tasks in {} threads", new object[] { list.Count, processorCount });
try
{
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = Task.Factory.StartNew(list[i]);
}
Task.WaitAll(tasks, 0x2710);
}
catch (Exception exception)
{
throw new TasteException(exception.Message, exception);
}
}
private static List <Action> wrapWithStatsCallables(List <Action> callables, AtomicInteger noEstimateCounter, RunningAverageAndStdDev timing)
{
List <Action> list = new List <Action>();
for (int i = 0; i < callables.Count; i++)
{
bool logStats = (i % 0x3e8) == 0;
list.Add(new Action(new StatsCallable(callables[i], logStats, timing, noEstimateCounter).call));
}
return(list);
}
public InvertedRunningAverageAndStdDev(RunningAverageAndStdDev delegate_)
{
this._holder = delegate_;
}
public InvertedRunningAverageAndStdDev(RunningAverageAndStdDev deleg)
{
this._Delegate = deleg;
}
public InvertedRunningAverageAndStdDev(RunningAverageAndStdDev delegate_)
{
this._holder = delegate_;
}