/* Challenge: Measures of Central Tendency (Ungrouped Data) https://www.sololearn.com/Discuss/903461/challenge-measures-of-central-tendency-ungrouped-data How to calculate Mean, Median and Mode see here http://www.mathsteacher.com.au/year8/ch17_stat/02_mean/mean.htm */ #include #include // setprecision(...) #include // std::sort #include // std::vector using namespace std; /* * This is the starting dataset * You can easely add / change / remove elements here as you wish */ float dataset[] = { 1, 11.169, 2, 4.5, 3, 5.6, 34, 51.9, 0, 1, 4.50, }; int main() { int len = sizeof(dataset) / sizeof(float), i = 0; // Just somekind of iterator helper std::vector myvector (dataset, dataset+len); int *freq = new int[len]; int max_freq = 0; float mean=0, median=0, mode=0; cout << "The mean of the data set\n("; // Lets sort unordered data set and... sort (myvector.begin(), myvector.begin()+len); for (std::vector::iterator it=myvector.begin(); it!=myvector.end(); ++it) { // ...print every dataset element (it is already ordered) cout << setprecision(2)< max_freq) ? freq[i] : max_freq; i++; } mean /= len; median = (len%2==0) ? (myvector[len/2-1] + myvector[len/2])/2 : myvector[(len)/2]; cout<<")\nis "<