diff --git a/histogram.cpp b/histogram.cpp new file mode 100644 index 0000000..8b358aa --- /dev/null +++ b/histogram.cpp @@ -0,0 +1,55 @@ + +#include +#include +#include "histogram.h" +using namespace std; + +void static find_minmax(const vector &numbers, double &min, double &max) +{ + max = numbers[0]; + min = numbers[1]; + for (double x: numbers) + { + if (x < min) + { + min = x; + } + else if (x > max) + { + max = x; + } + } + return; + +} + +vector make_histogram (vector numbers, size_t bin_count) +{ + + double minn; + double maxx; + find_minmax (numbers, minn, maxx); + double bin_size = (maxx - minn) / bin_count; + vector 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 = minn + j * bin_size; + auto hi = minn + (j + 1) * bin_size; + if ((lo <= numbers[i]) && (numbers[i] < hi)) + { + bins[j]++; + found = true; + } + } + if (!found) + { + bins[bin_count - 1]++; + } + } + return bins; +} + + diff --git a/histogram.h b/histogram.h new file mode 100644 index 0000000..ed9e7b4 --- /dev/null +++ b/histogram.h @@ -0,0 +1,8 @@ +#ifndef HISTOGRAM_H_INCLUDED +#define HISTOGRAM_H_INCLUDED +#include + +std::vector +make_histogram(const std::vector numbers, size_t bin_count); + +#endif // HISTOGRAM_H_INCLUDED diff --git a/text.cpp b/text.cpp new file mode 100644 index 0000000..12c41bf --- /dev/null +++ b/text.cpp @@ -0,0 +1,49 @@ +#include +#include +#include "text.h" + +using namespace std; + +void show_histogram_text(vector bins, size_t bin_count) +{ + const size_t SCREEN_WIDTH = 80; + const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1; + double max_bin; + size_t height; + max_bin = bins[0]; + height = bins[0]; + for (size_t i = 0; i < bin_count; i++) + { + if (bins[i] > max_bin){ + max_bin = bins[i]; + } + } + + bool flag = false; + if ( max_bin > 80) + { + flag = true; + } + for (size_t i = 0; i < bin_count; i++) + { + if (bins[i] < 100) + cout << " "; + if (bins[i] < 10) + cout << " "; + cout << bins[i] << "|"; + if( flag == true) + { + height = MAX_ASTERISK * (static_cast(bins[i]) / max_bin); + } + else + { + height = bins[i]; + } + for (size_t j = 0; j < height; j++) + { + cout << "*"; + } + cout << endl; + + } +} diff --git a/text.h b/text.h new file mode 100644 index 0000000..2b2ef6a --- /dev/null +++ b/text.h @@ -0,0 +1,8 @@ +#ifndef TEXT_H_INCLUDED +#define TEXT_H_INCLUDED +#include + +void +show_histogram_text(std::vector bins, size_t bin_count); + +#endif // TEXT_H_INCLUDED