/**
* Produce stats about boarding an initial Ride, which has no previous ride. This assumes arrival
* times are uniformly distributed during the window. The Ride must contain some trips, and the
* window must have a positive duration.
*/
public Stats calcStatsForBoarding(TimeWindow window) {
Stats stats = new Stats();
stats.min = 0; // You can always arrive just before a train departs.
List<Integer> departures = getSortedStoptimes(window, false);
int last = window.from;
double avgAccumulated = 0.0;
/* All departures in the list are known to be running and within the window. */
for (int dep : departures) {
int maxWait = dep - last;
if (maxWait > stats.max) stats.max = maxWait;
/* Weight the average of each interval by the number of seconds it contains. */
avgAccumulated += (maxWait / 2.0) * maxWait;
stats.num += maxWait;
last = dep;
}
if (stats.num > 0) {
stats.avg = (int) (avgAccumulated / stats.num);
}
return stats;
}