Родитель
ff05b2782d
Сommit
8a6b1a186a
@ -0,0 +1,55 @@
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#include <iostream>
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#include <math.h>
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#include <vector>
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#include "histogram.h"
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using namespace std;
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void
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find_minmax(const vector<double> &numbers, double& min, double& max)
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{
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min = numbers[0];
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max = numbers[0];
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for (size_t i = 0; i < numbers.size(); i++)
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{
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if (numbers[i] > max)
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max = numbers[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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vector<size_t> make_histogram (const vector<double>& numbers, size_t &bin_count)
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{
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vector <size_t> bins(bin_count);
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double min, max;
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float low, hi;
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find_minmax(numbers, min, max);
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double bin_size = (max - min) / bin_count;
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low = min;
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hi = low + bin_size;
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for (size_t i = 0; i < numbers.size(); i++)
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{
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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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{
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low = min + j * bin_size;
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hi = min + (j + 1) * bin_size;
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if ((low <= numbers[i]) && (numbers[i] < hi))
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{
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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==false)
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{
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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 +1,5 @@
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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 +1,34 @@
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#include <iostream>
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#include <vector>
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#include "text.h"
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using namespace std;
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void show_histogram_text(vector<size_t>& bins, size_t &bin_count)
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{
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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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size_t max_bin = bins[0];
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for (size_t bin : bins)
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if (bin > max_bin)
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max_bin = bin;
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for (size_t bin : bins)
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{
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int height = bin;
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if (max_bin > MAX_ASTERISK)
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{
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height = MAX_ASTERISK * (static_cast<double>(bin) / max_bin);
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}
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if (bin < 100)
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cout << " ";
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if (bin < 10)
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cout << " ";
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cout << bin << "|";
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for (int i = 0; i < height; i++)
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cout << "*";
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cout << endl;
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}
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return;
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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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