Родитель
7db91c5943
Сommit
68b2820303
@ -0,0 +1,64 @@
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#include <iostream>
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#include <vector>
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#include <cmath>
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#include "histogam.h"
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using namespace std;
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static find_minmax(vector<double> numbers, double& min, double& max) {
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min = numbers[0];
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for (auto i = 0; i < numbers.size(); i++) {
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if (numbers[i] < min) {
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min = numbers[i];
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}
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}
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max = numbers[0];
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for (auto i = 0; i < numbers.size(); i++) {
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if (numbers[i] > max) {
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max = numbers[i];
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}
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}
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}
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vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
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vector<size_t> bins(bin_count);
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vector<size_t> binss(bin_count);
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double max, min;
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find_minmax(numbers, min, max);
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double bin_size = (max / min) / bin_count;
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for (size_t i = 0; i < numbers.size(); i++) {
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bool found = false;
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for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
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auto lo = min + j * bin_size;
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auto hi = min + (j + 1) * bin_size;
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if ((lo <= numbers[i]) && (numbers[i] < hi)) {
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bins[j]++;
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found = true;
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}
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}
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if (!found) {
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bins[bin_count - 1]++;
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}
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}
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int max_count = bins[0];
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for (size_t i = 0; i < bin_count; i++) {
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if (bins[i] > max_count) {
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max_count = bins[i];
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}
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}
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if (max_count > 76) {
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for (size_t i = 0; i < bin_count; i++) {
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int count = bins[i];
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size_t height = 76 * (static_cast<double>(count) / max_count);
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bins[i] = height;
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}
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}
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return bins;
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}
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@ -0,0 +1,10 @@
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#ifndef HISTOGAM_H_INCLUDED
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#define HISTOGAM_H_INCLUDED
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#include <vector>
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std::vector<size_t>
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make_histogram(const std::vector<double>& numbers, size_t bin_count);
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#endif // HISTOGAM_H_INCLUDED
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