Ejemplo: función de desviación estándar en c ++
#include<iostream>
#include<cmath>
using namespace std;
int main(int argc, char const *argv[])
{
double mean;
double nums[] = {9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4};
double standardDeviation = 0;
double arraySize = *(&nums + 1) - nums;
for (int i = 0; i < arraySize; i++){ mean = (nums[i] + mean);}
mean = mean/ arraySize;
for (int i = 0; i < arraySize; i++){
standardDeviation += pow((nums[i] - mean), 2);
}
standardDeviation = sqrt(standardDeviation / arraySize);
cout << standardDeviation << endl;
return 0;
}
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