/// <summary>
/// Calculates involved partial dependence coefficient of binary chain.
/// </summary>
/// <param name="manager">
/// Intervals manager.
/// </param>
/// <param name="link">
/// Link of intervals in chain.
/// </param>
/// <returns>
/// Involved partial dependence coefficient.
/// </returns>
public override double Calculate(BinaryIntervalsManager manager, Link link)
{
if (manager.FirstElement.Equals(manager.SecondElement))
{
return 0;
}
var redundancyCalculator = new Redundancy();
double redundancy = redundancyCalculator.Calculate(manager, link);
return redundancy * (2 * manager.PairsCount) / (manager.FirstChain.OccurrencesCount + manager.SecondChain.OccurrencesCount);
}
/// <summary>
/// Calculation method.
/// </summary>
/// <param name="manager">
/// Intervals manager.
/// </param>
/// <param name="link">
/// Link of intervals in chain.
/// </param>
/// <returns>
/// Mutual dependence coefficient
/// </returns>
public override double Calculate(BinaryIntervalsManager manager, Link link)
{
if (manager.FirstElement.Equals(manager.SecondElement))
{
return 0;
}
var involvedCoefficientCalculator = new InvolvedPartialDependenceCoefficient();
double firstInvolvedCoefficient = involvedCoefficientCalculator.Calculate(manager, link);
double secondInvolvedCoefficient = involvedCoefficientCalculator.Calculate(new BinaryIntervalsManager(manager.SecondChain, manager.FirstChain), link);
double multipliedInvolvedCoefficient = firstInvolvedCoefficient * secondInvolvedCoefficient;
return (firstInvolvedCoefficient < 0 || secondInvolvedCoefficient < 0) ? 0 : Math.Sqrt(multipliedInvolvedCoefficient);
}
/// <summary>
/// Calculated as geometric mean between two congeneric sequences.
/// </summary>
/// <param name="manager">
/// Intervals manager.
/// </param>
/// <param name="link">
/// Link of intervals in chain.
/// </param>
/// <returns>
/// Average geometric value.
/// </returns>
public override double Calculate(BinaryIntervalsManager manager, Link link)
{
// dependence of the component on itself is 0.
if (manager.FirstElement.Equals(manager.SecondElement))
{
return 0;
}
int[] intervals = manager.GetIntervals();
double result = intervals.Where(t => t > 0).Sum(t => Math.Log(t, 2));
return Math.Pow(2, intervals.Length == 0 ? 0 : result / intervals.Length);
}
// TODO: refactor to using intervals manager
/// <summary>
/// Calculation method.
/// </summary>
/// <param name="manager">
/// Intervals manager.
/// </param>
/// <param name="link">
/// Link of intervals in chain.
/// </param>
/// <returns>
/// Redundancy as <see cref="double"/>.
/// </returns>
public override double Calculate(BinaryIntervalsManager manager, Link link)
{
if (manager.FirstElement.Equals(manager.SecondElement))
{
return 0;
}
var firstElementCount = manager.FirstChain.OccurrencesCount;
double avG = 0;
int currentEntrance = 0;
for (int i = 1; i <= firstElementCount; i++)
{
if (manager.GetBinaryInterval(i) > 0)
{
if (currentEntrance == 0)
{
currentEntrance = manager.GetFirstAfter(manager.GetFirst(i));
if (link == Link.Start || link == Link.Both)
{
avG += Math.Log(currentEntrance, 2);
}
}
else
{
int nextEntrance = manager.GetFirstAfter(manager.GetFirst(i));
avG += Math.Log(nextEntrance - currentEntrance, 2);
currentEntrance = nextEntrance;
}
}
}
if (link == Link.End || link == Link.Both)
{
avG += Math.Log(manager.Length - currentEntrance, 2);
}
avG = manager.PairsCount == 0 ? 0 : avG / manager.PairsCount;
var geometricMeanCalculator = new GeometricMean();
double binaryGeometricMean = geometricMeanCalculator.Calculate(manager, link);
return 1 - (binaryGeometricMean / Math.Pow(2, avG));
}