From 377e02cd40ddc90f5f46fb61f2ae7233c3f6447b Mon Sep 17 00:00:00 2001 From: "Alice (IvanovII)" Date: Mon, 29 May 2023 14:35:34 +0300 Subject: [PATCH] histogram.cpp --- histogram.cpp | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 histogram.cpp diff --git a/histogram.cpp b/histogram.cpp new file mode 100644 index 0000000..13251e7 --- /dev/null +++ b/histogram.cpp @@ -0,0 +1,53 @@ + +#include +#include +#include "histogram.h" + +//std::vector + +static void +find_minmax(const std::vector numbers, double& min, double& max) +{ + /*/double/*/ min = numbers[0];//поиск мин и макс + /*/ double/*/ max = numbers[0]; + for (double x : numbers) + { + if (x < min) + { + min = x; + } + else if (x > max) + { + max = x; + } + } +} +std::vector +make_histogram(const std::vector numbers, size_t bin_count) +{ + std::vector bins(bin_count); + double min, max; + find_minmax(numbers, min, max); + double bin_size = (max-min)/bin_count;//размер корзины + + for (size_t i = 0; i < numbers.size(); i++)//заполнение + { + 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; +}