56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
#include <iostream>
|
||
|
|
#include <cmath>
|
||
|
|
|
||
|
|
#include "lib_begin.h"
|
||
|
|
|
||
|
|
namespace cgv {
|
||
|
|
namespace utils {
|
||
|
|
|
||
|
|
/** incrementally accumulate statistical information */
|
||
|
|
class CGV_API statistics
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/// initialize with no value considered yet
|
||
|
|
statistics();
|
||
|
|
/// initialize and consider one value
|
||
|
|
statistics(const double& v);
|
||
|
|
/// initialize and consider n equal values
|
||
|
|
statistics(const double& v, unsigned int n);
|
||
|
|
/// initialize
|
||
|
|
void init();
|
||
|
|
/// initialize and consider one value
|
||
|
|
void init(const double& v);
|
||
|
|
/// initialize and consider n equal values
|
||
|
|
void init(const double& v, unsigned int n);
|
||
|
|
/// consider another value
|
||
|
|
void update(const double& v);
|
||
|
|
/// consider another value count times
|
||
|
|
void update(const double& v, unsigned int n);
|
||
|
|
/// compute average of the considered values
|
||
|
|
double get_average() const;
|
||
|
|
/// compute standard deviation of the considered value
|
||
|
|
double get_standard_deviation() const;
|
||
|
|
/// get the sum of the considered variables
|
||
|
|
double get_sum() const;
|
||
|
|
/// get the sum of the considered variables
|
||
|
|
double get_sum_of_squares() const;
|
||
|
|
/// get the minimum of the considered variables
|
||
|
|
double get_min() const;
|
||
|
|
/// get the maximum of the considered variables
|
||
|
|
double get_max() const;
|
||
|
|
/// get the number of considered variables
|
||
|
|
unsigned int get_count() const;
|
||
|
|
protected:
|
||
|
|
double min, max, sum, sms;
|
||
|
|
unsigned int cnt;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
extern CGV_API std::ostream& operator << (std::ostream& os, const statistics& s);
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <cgv/config/lib_end.h>
|