Родитель
b91f775f94
Сommit
00b9e9ee2d
@ -0,0 +1,43 @@
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#include "histogram.h"
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#include <vector>
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#include <iostream>
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using namespace std;
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static void
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find_minmax(const vector<double>& numbers, double& min, double& max) {
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min = numbers[0];
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max = numbers[0];
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for (double x : numbers) {
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if (x < min) {
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min = x;
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}
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else if (x > max) {
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max = x;
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}
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}
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}
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std::vector<double>
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make_histogram(const std::vector<double>& numbers, size_t bin_count){
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vector<double> bins (bin_count);
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double min = 0, max = 0;
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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 (int i = 0; i < numbers.size(); i++) {
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bool found = false;
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for (int 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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return bins;
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}
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@ -0,0 +1,6 @@
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#pragma once
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#include <vector>
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std::vector<double>
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make_histogram(const std::vector<double>& numbers, size_t bin_count);
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@ -0,0 +1,25 @@
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#include "text.h"
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#include <string>
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#include <iostream>
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using namespace std;
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void
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show_histogram_text (const vector<double>& bins,size_t MAX_ASTERISK, size_t bin_count){
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double max_count = bins[0];
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for (double x: bins){
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if (x > max_count) {
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max_count = x;
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}
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}
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for (int i = 0; i < bin_count; i++){
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double count = bins[i];
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size_t height = MAX_ASTERISK * (static_cast<double>(count) / max_count);
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string line (height , '*');
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if (bins[i]<100)
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{cout << ' ';}
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if (bins[i]<10)
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{cout << ' ';}
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cout << bins[i] << "|" << line << endl;
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}
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}
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@ -0,0 +1,5 @@
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#pragma once
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#include <vector>
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void
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show_histogram_text (const std::vector<double>& bins,size_t MAX_ASTERISK, size_t bin_count);
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