File indexing completed on 2024-05-12 05:26:27

 #include "utils.h"
 
 #include <QList>
 #include <math.h>
 
 double variance(const QList<double> &values)
 {
     //The variance of a single value is 0
     if (values.size() == 1) {
         return 0;
     }
     double mean = 0;
     for (auto value : values) {
         mean += value;
     }
     mean = mean / static_cast<double>(values.size());
     double variance = 0;
     for (auto value : values) {
         variance += pow(static_cast<double>(value) - mean, 2);
     }
     variance = variance / static_cast<double>(values.size() - 1);
     return variance;
 }
 
 double maxDifference(const QList<double> &values)
 {
     auto max = values.first();
     auto min = values.first();
     for (auto value : values) {
         if (value > max) {
             max = value;
         }
         if (value < min) {
             min = value;
         }
     }
     return max - min;
 }