public double getAverageEasiness() {
double totalEasiness = 0;
Collection<Student> students = StudentManager.instance().values();
for (Student student : students) totalEasiness += student.getEasinessFor(this);
return totalEasiness / students.size();
}
public double getAverageResponseTime() {
if (timerReviews == null) {
timerReviews = new ReviewList();
for (Student student : StudentManager.instance().values()) {
if (student.getGradingGroup() != GradingGroup.SCORE) continue;
ReviewList tempList = student.getReviewsClone();
for (int i = 0; i < tempList.size(); i++) timerReviews.add(tempList.get(i));
}
}
return timerReviews.getFor(this).getAverageResponseTime();
}
private ReviewList getReviewsFor(Student s) {
ReviewList rl = s.getReviews();
ReviewList reviewsForThisCard = new ReviewList();
for (int i = 0; i < rl.size(); i++) {
if (rl.get(i).getCardId() == cid) {
reviewsForThisCard.add(rl.get(i));
}
}
return reviewsForThisCard;
}
public Stats getStatsFor(Student s) {
Review lastReview = s.getLastReviewFor(this);
Stats stats = new Stats();
if (lastReview == null) {
return stats;
}
ReviewList rl = getReviewsFor(s);
int numSuccessfulReviews = 0;
double totalReviewTime = 0.0;
for (int i = 0; i < rl.size(); i++) {
if (rl.get(i).getSuccess()) {
numSuccessfulReviews++;
}
totalReviewTime += rl.get(i).getResponseTime();
}
stats.numReviews = rl.size();
stats.numSuccessfulReviews = numSuccessfulReviews;
stats.averageReviewTime = totalReviewTime / stats.numReviews;
stats.mostRecentDate = lastReview.getDate();
return stats;
}