Родитель
b31bbe8722
Сommit
e5bd61e1b7
@ -0,0 +1,34 @@
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#include "histogram.h"
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#include <vector>
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static void
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find_minmax(const std::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 (auto 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<size_t>
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make_histogram(const std::vector<double>& numbers, size_t bin_count){
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double min, max;
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find_minmax (numbers, min, max);
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double bin_size = (max - min) / bin_count;
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std::vector<size_t> bins(bin_count);
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for (auto x : numbers) {
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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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if ((min + j * bin_size <= x) && (x < min + (j + 1) * bin_size)) {
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bins[j] += 1;
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found = true;
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}
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}
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if (!found) bins[bin_count - 1]++;
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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<size_t>
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make_histogram(const std::vector<double>& numbers, size_t bin_count);
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@ -0,0 +1,43 @@
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#include "text.h"
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#include <vector>
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#include <iostream>
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using namespace std;
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const size_t SCREEN_WIDTH = 80;
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const size_t MAX_LENGTH = SCREEN_WIDTH - 3 - 1;
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void
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show_histogram_text(vector<size_t> bins, size_t bin_count ){
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auto max_count = bins[0];
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for (auto 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 (size_t i = 0; i < bin_count; i++) {
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size_t j = 100;
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while (bins[i] < j) {
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cout << " ";
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j /= 10;
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}
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cout << bins[i] << "|";
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if (max_count > MAX_LENGTH) {
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auto count = bins[i];
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size_t height = MAX_LENGTH * (static_cast<double>(count) / max_count);
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j = 0;
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while (j < height) {
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cout << "*";
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j++;
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}
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}
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else {
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j = 0;
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while (j < bins[i]) {
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cout << "*";
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j++;
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}
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}
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cout << 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(std::vector<size_t> bins, size_t bin_count );
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