Родитель
43afd5dd7c
Сommit
8cfd678df7
@ -0,0 +1,45 @@
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#include "histogram.h"
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#include <iostream>
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#include <vector>
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using namespace std;
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static void find_minmax(const vector<double>& numbers, double& minN, double& maxN){
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minN = numbers[0];
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maxN = numbers[0];
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for (double x : numbers){
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if (x < minN){
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minN = x;
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}
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else if (x > maxN) {
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maxN = x;
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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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double minN, maxN;
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find_minmax(numbers, minN, maxN);
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vector <size_t> bins(bin_count);
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double diff = (maxN - minN) / bin_count;
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size_t max_count = 0;
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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 = minN + j * diff;
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auto hi = minN + (j + 1) * diff;
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if ((lo <= numbers[i]) && (hi > numbers[i])){
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bins[j]++;
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if (bins[j] > max_count){
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max_count = bins[j];
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}
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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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if (bins[bin_count - 1] > max_count){
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max_count = bins[bin_count - 1];
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}
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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 HISTOGRAM_H_INCLUDED
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#define HISTOGRAM_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 // HISTOGRAM_H_INCLUDED
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@ -0,0 +1,38 @@
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#include "text.h"
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#include <iostream>
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#include <vector>
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using namespace std;
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void show_histogram_text(const vector <size_t>& bins,size_t bin_count, size_t max_count){
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const size_t SCREEN_WIDTH = 80;
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const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
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bool scaling = false;
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if (max_count > MAX_ASTERISK){
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scaling = true;
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}
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for (size_t i = 0; i < bin_count; i++){
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if (bins[i] < 10){
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cout << " ";
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}
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else if (bins[i] < 100){
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cout << " ";
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}
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else{
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cout << "";
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}
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cout << bins[i] << '|';
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size_t number_of_stars = bins[i];
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if (scaling){
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if (bins[i] == max_count){
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number_of_stars = MAX_ASTERISK * 1.0;
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}
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else{
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number_of_stars = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
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}
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}
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for (size_t j = 0; j < number_of_stars; j++){
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cout << '*';
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}
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cout << endl;
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}
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}
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@ -0,0 +1,7 @@
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#ifndef TEXT_H_INCLUDED
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#define TEXT_H_INCLUDED
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#include <vector>
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void show_histogram_text(const std::vector <size_t>& bins,size_t bin_count, size_t max_count);
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#endif // TEXT_H_INCLUDED
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