IvanonVG 4 недель назад
Родитель 1309008182
Сommit fa2e7974da

@ -1,47 +1,43 @@
#include "histogram.h" #include "histogram.h"
#include <vector> #include <vector>
#include <numeric>
using namespace std; using namespace std;
void find_minmax(const vector<double>& numbers, double& min, double& max) { void find_minmax(const vector<double>& numbers, double& min, double& max) {
if (numbers.empty()) if (numbers.empty()) return;
{
min = 0;
max = 0;
return;
}
max = numbers[0]; max = numbers[0];
min = numbers[0]; min = numbers[0];
for (double x : numbers) { for (double x : numbers) {
if (x < min) min = x; if (x < min) min = x;
else if (x > max) max = x; if (x > max) max = x;
} }
} }
vector<size_t> make_histogram(vector<double> numbers, size_t bin_count) {
vector<size_t> make_histogram (vector<double> numbers, size_t bin_count)
{
double min, max; double min, max;
find_minmax (numbers, min, max); find_minmax(numbers, min, max);
double bin_size = (max - min) / bin_count; double bin_size = (max - min) / bin_count;
vector<size_t> bins(bin_count); vector<size_t> bins(bin_count);
for (size_t i = 0; i < numbers.size(); i++)
{ for (size_t i = 0; i < numbers.size(); i++) {
bool found = false; bool found = false;
for (size_t j = 0; (j < bin_count - 1) && !found; j++) for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
{
auto lo = min + j * bin_size; auto lo = min + j * bin_size;
auto hi = min + (j + 1) * bin_size; auto hi = min + (j + 1) * bin_size;
if ((lo <= numbers[i]) && (numbers[i] < hi)) if ((lo <= numbers[i]) && (numbers[i] < hi)) {
{
bins[j]++; bins[j]++;
found = true; found = true;
} }
} }
if (!found) if (!found) {
{
bins[bin_count - 1]++; bins[bin_count - 1]++;
} }
} }
return bins; return bins;
} }
double calculate_average_height(const vector<size_t>& bins) {
if (bins.empty()) return 0.0;
double sum = accumulate(bins.begin(), bins.end(), 0.0);
return sum / bins.size();
}

@ -1,9 +1,8 @@
#ifndef HISTOGRAM_H_INCLUDED #ifndef HISTOGRAM_H_INCLUDED
#define HISTOGRAM_H_INCLUDED #define HISTOGRAM_H_INCLUDED
#include <vector> #include <vector>
using namespace std; using namespace std;
vector<size_t> make_histogram(vector<double> numbers, size_t bin_count); vector<size_t> make_histogram(vector<double> numbers, size_t bin_count);
double calculate_average_height(const vector<size_t>& bins);
#endif #endif

@ -37,9 +37,10 @@
<Unit filename="histogram.h" /> <Unit filename="histogram.h" />
<Unit filename="histogram_internal.h" /> <Unit filename="histogram_internal.h" />
<Unit filename="main.cpp" /> <Unit filename="main.cpp" />
<Unit filename="svg.cpp" />
<Unit filename="svg.h" />
<Unit filename="text.cpp" /> <Unit filename="text.cpp" />
<Unit filename="text.h" /> <Unit filename="text.h" />
<Unit filename="unittest.cpp" />
<Extensions> <Extensions>
<lib_finder disable_auto="1" /> <lib_finder disable_auto="1" />
</Extensions> </Extensions>

@ -2,6 +2,8 @@
#include <vector> #include <vector>
#include "histogram.h" #include "histogram.h"
#include "text.h" #include "text.h"
#include "svg.h"
#include "histogram_internal.h"
using namespace std; using namespace std;
@ -28,12 +30,8 @@ Input input_data(){
int main() int main()
{ {
if (in.numbers.empty()) {
cerr << "Error: The data set is empty." << endl;
return EXIT_FAILURE;
}
auto in = input_data(); auto in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count); auto bins = make_histogram(in.numbers, in.bin_count);
show_histogram_text(bins, in.bin_count); show_histogram_svg(bins);
return 0; return 0;
} }

@ -2,7 +2,7 @@
#include <vector> #include <vector>
#include <string> #include <string>
#include "svg.h" #include "svg.h"
#include "histogram.h"
using namespace std; using namespace std;
void svg_begin(double width, double height) { void svg_begin(double width, double height) {
@ -22,7 +22,7 @@ void svg_text(double left, double baseline, string text) {
cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>\n"; cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>\n";
} }
void svg_rect(double x, double y, double width, double height, string stroke = "black", string fill = "black") { void svg_rect(double x, double y, double width, double height, string stroke, string fill) {
cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height
<< "' stroke='" << stroke << "' fill='" << fill << "' />\n"; << "' stroke='" << stroke << "' fill='" << fill << "' />\n";
} }
@ -51,10 +51,13 @@ void show_histogram_svg(const vector<size_t>& bins) {
} }
} }
double avg_height = calculate_average_height(bins);
for (size_t bin : bins) { for (size_t bin : bins) {
const double bin_width = MAX_WIDTH * (static_cast<double>(bin) / max_count); const double bin_width = MAX_WIDTH * (static_cast<double>(bin) / max_count);
svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin)); svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", "red"); string fill_color = (bin > avg_height) ? "red" : "green";
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", fill_color);
top += BIN_HEIGHT; top += BIN_HEIGHT;
} }

@ -1,9 +1,8 @@
#ifndef SVG_H_INCLUDED #ifndef SVG_H_INCLUDED
#define SVG_H_INCLUDED #define SVG_H_INCLUDED
#include <vector> #include <vector>
#include <cstddef> #include <cstddef>
void show_histogram_svg(const std::vector<size_t>& bins); void show_histogram_svg(const std::vector<size_t>& bins);
#endif // SVG_H_INCLUDED #endif

Загрузка…
Отмена
Сохранить