1 #ifndef Stats_DEFINED 2 #define Stats_DEFINED 3 4 struct Stats { 5 Stats(const double samples[], int n) { 6 min = samples[0]; 7 max = samples[0]; 8 for (int i = 0; i < n; i++) { 9 if (samples[i] < min) { min = samples[i]; } 10 if (samples[i] > max) { max = samples[i]; } 11 } 12 13 double sum = 0.0; 14 for (int i = 0 ; i < n; i++) { 15 sum += samples[i]; 16 } 17 mean = sum / n; 18 19 double err = 0.0; 20 for (int i = 0 ; i < n; i++) { 21 err += (samples[i] - mean) * (samples[i] - mean); 22 } 23 var = err / (n-1); 24 } 25 26 double min; 27 double max; 28 double mean; // Estimate of population mean. 29 double var; // Estimate of population variance. 30 }; 31 32 #endif//Stats_DEFINED 33
