code: создание histogram.h и histogram.cpp

main
Daniil (FilippovDY) 1 год назад
Родитель 479391830c
Сommit 9adf811db7

@ -32,6 +32,7 @@
<Add option="-Wall" />
<Add option="-fexceptions" />
</Compiler>
<Unit filename="histogram.cpp" />
<Unit filename="main.cpp" />
<Extensions />
</Project>

@ -0,0 +1,45 @@
#include "histogram.h"
#include <vector>
static void find_minmax(const std::vector <double> &numbers, double &min, double &max)
{
min = numbers[0];
max = numbers[0];
for (double x : numbers)
{
if (x < min)
{
min = x;
}
else if (x > max)
{
max = x;
}
}
}
std::vector<std::size_t> make_histogram(const std::vector<double> &numbers, std::size_t bin_count)
{
double min, max;
find_minmax(numbers, min, max);
double bin_size = (max - min) / bin_count;
std::vector <std::size_t> bins (bin_count);
for (std::size_t i = 0; i < numbers.size(); i++)
{
bool found = false;
for (std::size_t j = 0; (j < bin_count - 1) && !found; j++)
{
auto lo = min + j * bin_size;
auto hi = min + (j+1) * bin_size;
if ((lo <= numbers[i]) && (numbers[i] < hi))
{
bins[j]++;
found = true;
}
}
if (!found)
{
bins[bin_count - 1]++;
}
}
return bins;
}

@ -0,0 +1,9 @@
#ifndef HISTOGRAM_H_INCLUDED
#define HISTOGRAM_H_INCLUDED
#include <vector>
std::vector<size_t>
make_histogram(const std::vector<double>& numbers, size_t bin_count);
#endif // HISTOGRAM_H_INCLUDED

@ -1,6 +1,6 @@
#include <iostream>
#include <vector>
#include "histogram.h"
using namespace std;
struct Input
{
@ -26,51 +26,6 @@ input_data()
return in;
}
void
find_minmax(const vector<double> &numbers, double &min, double &max)
{
min = numbers[0];
max = numbers[0];
for (double x : numbers)
{
if (x < min)
{
min = x;
}
else if (x > max)
{
max = x;
}
}
}
vector<size_t> make_histogram(const vector<double> &numbers, size_t bin_count)
{
double min = numbers[0];
double max = numbers[0];
find_minmax(numbers, min, max);
double bin_size = (max - min) / bin_count;
vector <size_t> bins (bin_count);
for (size_t i = 0; i < numbers.size(); i++)
{
bool found = false;
for (size_t j = 0; (j < bin_count - 1) && !found; j++)
{
auto lo = min + j * bin_size;
auto hi = min + (j+1) * bin_size;
if ((lo <= numbers[i]) && (numbers[i] < hi))
{
bins[j]++;
found = true;
}
}
if (!found)
{
bins[bin_count - 1]++;
}
}
return bins;
}
void
show_histogram_text(const vector <size_t> &bins)
{
const size_t SCREEN_WIDTH = 80;
@ -130,7 +85,7 @@ show_histogram_text(const vector <size_t> &bins)
int
main()
{
auto in = input_data();
Input in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count);
show_histogram_text(bins);
}

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