mean (Descriptive Statistics)


Import

#include <archr/stats/mean.h>
#include <archr/stats/mean.hpp>
import archr.stats
atomsLoads('archr')

Synopsis

 float archr_stats_mean_f32(const float *first, size_t nbelem);
(1)
 double archr_stats_mean_f64(const double *first, size_t nbelem);
(2)
 float mean(const float *first, size_t nbelem);
(1)
 double mean(const double *first, size_t nbelem);
(2)
 double mean(const float *first, const float *last);
(3)
 double mean(const double *first, const double *last);
(4)
template <typename Range> double mean(const Range& data);
(5)
subroutine archr_stats_mean_f32(real(4) :: r, real(4), dimension(*), parameter :: first, integer(4) :: nbelem)
(1)
subroutine archr_stats_mean_f64(real(8) :: r, real(8), dimension(*), parameter :: first, integer(4) :: nbelem)
(2)
def mean(first):
    return r
(1)
function r = archr_stats_mean(first)
(1)

Description

This function computes the mean of the elements stored in:

Parameters

first

the beginning of the range of elements to average.

last

the end of the range of elements to average.

nbelem

the number of elements to average.

Return value

The mean of the elements in the given range.

Example

#include <archr/stats/mean.h>
#include <stdio.h>

int main()
{
  float v[] = {1,2,3,4,5,6};

  printf("mean(1,2,3,4,5,6) = %f\n", archr_stats_mean_f32(&v[0],6) );

  return 0;
}

Possible Output

mean(1,2,3,4,5,6) = 3.500000
mean(1,2,3,4)     = 2.500000
#include <archr/stats/mean.hpp>
#include <iostream>
#include <vector>

int main()
{
 std::vector<float> v{1,2,3,4,5,6};

 std::cout << "mean(1,2,3,4,5,6) = " << archr::stats::mean(v) << "\n";
 std::cout << "mean(1,2,3,4,5)   = " << archr::stats::mean(v.data(), 5) << "\n";
 std::cout << "mean(1,2,3,4)     = " << archr::stats::mean(v.data(), v.data() + 4) << "\n";

  return 0;
}

Possible Output

mean(1,2,3,4,5,6) = 3.5
mean(1,2,3,4,5)   = 3
mean(1,2,3,4)     = 2.5

Possible Output