Warning: session_start(): open(/var/lib/php/sessions/sess_ma5v7gghtvt5mregj9tqpifnm9, O_RDWR) failed: No space left on device (28) in /var/www/tb-usercake/models/config.php on line 51

Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
// find best threshold value to separate list1 (smaller values) from list2 (bigger values), minimizing false positives + false negatives // returns (threshold, false positives, false negatives) static T3 findBestThreshold(Cl list1, Cl list2) { if (empty(list1) || empty(list2)) null; // get basic treshold & number of false positives/negatives T3 t = findThreshold_unmoved(list1, list2); double threshold = t.a; int falsePositives = t.b, falseNegatives = t.c; ifdef findBestThreshold_debug printVars_str("Initial threshold.", +i, l := l(l), +threshold, +falsePositives, +falseNegatives); endifdef // get all values in a sorted list L l = sorted(concatLists(list1, list2)); int i = binarySearch_insertionPoint(l, t); while (falsePositives > falseNegatives && i > 0) { --i; threshold = avg(l.get(i), l.get(i+1)); falsePositives = countPred(list1, d -> d > threshold); falseNegatives = countPred(list2, d -> d <= threshold); ifdef findBestThreshold_debug printVars_str("Stepped down.", +i, l := l(l), +threshold, +falsePositives, +falseNegatives); endifdef } while (falseNegatives > falsePositives && i+1 < l(l)) { ++i; threshold = avg(l.get(i), l.get(i+1)); falsePositives = countPred(list1, d -> d > threshold); falseNegatives = countPred(list2, d -> d <= threshold); ifdef findBestThreshold_debug printVars_str("Stepped up.", +i, l := l(l), +threshold, +falsePositives, +falseNegatives); endifdef } ret t3(threshold, falsePositives, falseNegatives); }