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				| @ -0,0 +1,64 @@ | ||||
| #include <iostream> | ||||
| #include <vector> | ||||
| #include <cmath> | ||||
| #include "histogam.h" | ||||
| using namespace std; | ||||
| 
 | ||||
| static find_minmax(vector<double> numbers, double& min, double& max) { | ||||
|     min = numbers[0]; | ||||
|     for (auto i = 0; i < numbers.size(); i++) { | ||||
|         if (numbers[i] < min) { | ||||
|             min = numbers[i]; | ||||
|         } | ||||
|     } | ||||
| 
 | ||||
|     max = numbers[0]; | ||||
|     for (auto i = 0; i < numbers.size(); i++) { | ||||
|         if (numbers[i] > max) { | ||||
|             max = numbers[i]; | ||||
|         } | ||||
|     } | ||||
| 
 | ||||
| } | ||||
| 
 | ||||
| vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) { | ||||
| 
 | ||||
|     vector<size_t> bins(bin_count); | ||||
|     vector<size_t> binss(bin_count); | ||||
| 
 | ||||
|     double max, min; | ||||
|     find_minmax(numbers, min, max); | ||||
|     double bin_size = (max / min) / bin_count; | ||||
| 
 | ||||
|     for (size_t i = 0; i < numbers.size(); i++) { | ||||
|         bool found = false; | ||||
|         for (size_t j = 0; (j < bin_count - 1) && !found; j++) { | ||||
|             auto lo = min + j * bin_size; | ||||
|             auto hi = min + (j + 1) * bin_size; | ||||
|             if ((lo <= numbers[i]) && (numbers[i] < hi)) { | ||||
|                 bins[j]++; | ||||
|                 found = true; | ||||
|             } | ||||
|         } | ||||
|         if (!found) { | ||||
|             bins[bin_count - 1]++; | ||||
|         } | ||||
|     } | ||||
| 
 | ||||
|     int max_count = bins[0]; | ||||
|     for (size_t i = 0; i < bin_count; i++) { | ||||
|         if (bins[i] > max_count) { | ||||
|             max_count = bins[i]; | ||||
|         } | ||||
|     } | ||||
| 
 | ||||
|     if (max_count > 76) { | ||||
| 
 | ||||
|         for (size_t i = 0; i < bin_count; i++) { | ||||
|             int count = bins[i]; | ||||
|             size_t height = 76 * (static_cast<double>(count) / max_count); | ||||
|             bins[i] = height; | ||||
|         } | ||||
|     } | ||||
|     return bins; | ||||
| } | ||||
| @ -0,0 +1,10 @@ | ||||
| #ifndef HISTOGAM_H_INCLUDED | ||||
| #define HISTOGAM_H_INCLUDED | ||||
| 
 | ||||
| #include <vector> | ||||
| 
 | ||||
| std::vector<size_t> | ||||
| make_histogram(const std::vector<double>& numbers, size_t bin_count); | ||||
| 
 | ||||
| 
 | ||||
| #endif // HISTOGAM_H_INCLUDED
 | ||||
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