public static double CalculateNonMedoidSwapCost(ConsumerFlight targetNonMedoid, ConsumerFlight medoid, ConsumerFlight potentialMedoid, IList <ConsumerFlight> consumerFlights, IList <ConsumerFlight> medoids)
{
double closestDistance = Double.MaxValue;
double secondClosestDistance = Double.MaxValue;
double switchedDistance = CalculateDistance(targetNonMedoid, potentialMedoid);
double cost;
ConsumerFlight closestMedoid = null;
//finding the medoid that targetNonMedoid belongs to
foreach (var m in medoids)
{
var distance = CalculateDistance(targetNonMedoid, m);
if (distance < closestDistance)
{
closestDistance = distance;
closestMedoid = m;
}
}
if (closestMedoid.Equals(medoid))
{
//find second closest distance
foreach (var m in medoids)
{
if (!m.Equals(medoid))
{
var distance = CalculateDistance(targetNonMedoid, m);
if (distance < secondClosestDistance)
{
secondClosestDistance = distance;
}
}
}
cost = switchedDistance < secondClosestDistance
? switchedDistance - closestDistance
: secondClosestDistance - closestDistance;
}
else
{
cost = switchedDistance < closestDistance ? switchedDistance - closestDistance : 0;
}
return(cost);
}
