cs-lab_34/histogram.cpp

#include "histogram.h"
#include <vector>
using namespace std;
void FindMinMax(const vector<double>& Numbers, double& minn, double& maxx) {
	maxx = Numbers[0];
	minn = Numbers[0];
	for (auto x : Numbers) {
		if (x > maxx) {
			maxx = x;
		}
		if (x < minn) {
			minn = x;
		}
	}
}

vector<size_t> MakeHistogram(vector<double> Numbers, size_t BinCount, double& MaxCount) {
	double maxx, minn;
	FindMinMax(Numbers, minn, maxx);
	double BinSize = (maxx - minn) / BinCount;
	vector <size_t> Bins(BinCount);
	for (size_t i = 0; i < Numbers.size(); i++) {
		bool found = false;
		for (size_t j = 0; (j < BinCount - 1) && !found; j++) {
			auto lo = minn + j * BinSize;
			auto hi = minn + (j + 1) * BinSize;
			if ((lo <= Numbers[i]) && (Numbers[i] < hi)) {
				Bins[j]++;
				found = true;
				if (Bins[j] > MaxCount) {
					MaxCount = Bins[j];
				}
			}
		}
		if (!found) {
			Bins[BinCount - 1]++;
			if (Bins[BinCount - 1] > MaxCount) {
				MaxCount = Bins[BinCount - 1];
			}
		}
	}
	return Bins;
}