Population/test_population.cc at master · nalyd88/Population · GitHub

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// Code to test the Population utility.

#include "Population.h"
#include <cstdlib>
#include <iostream>

using namespace std;
using population::Population;

#define ASIZE 10

// Main program entry point.
int main ()
{
  //int array[] = { 1,2,3,4,5,6,7,8,9,10 };
  double array[] = { 2,2,2,2,2,2,2,2,2,2 };

  Population pop1(ASIZE, array);
  cout << "Population #1: ";
  for(int i = 0; i < pop1.samples(); i++)
  {
    cout << pop1.get_element(i) << " ";
  }
  cout << endl;
  cout << "Population #1 samples = " << pop1.samples() << endl;
  cout << "Population #1 mean = " << pop1.mean() << endl;
  cout << "Population #1 std. dev. = " << pop1.stddev() << endl;
  cout << "Population #1 90th percentile = " << pop1.percentile(0.9) << endl;

  Population pop2;
  for(int i = 1; i <= ASIZE; i++)
  {
    pop2.add(i);
  }
  cout << "Population #2: ";
  for(int i = 0; i < pop2.samples(); i++)
  {
    cout << pop2.get_element(i) << " ";
  }
  cout << endl;
  cout << "Population #2 samples = " << pop2.samples() << endl;
  cout << "Population #2 mean = " << pop2.mean() << endl;
  cout << "Population #2 std. dev. = " << pop2.stddev() << endl;
  cout << "Population #2 90th percentile = " << pop2.percentile(0.9) << endl;
  cout << "Population #2 median = " << pop2.median() << endl;

  pop2.remove_element(3);
  cout << "Population #2(missing one): ";
  for(int i = 0; i < pop2.samples(); i++)
  {
    cout << pop2.get_element(i) << " ";
  }
  cout << endl;

  Population pop3(3.3);
  cout << "Population #3: ";
  for(int i = 0; i < pop3.samples(); i++)
  {
    cout << pop3.get_element(i) << " ";
  }
  cout << endl;

  Population pop4;
  srand ( time(NULL) ); /* initialize random seed: */
  for(int i = 1; i <= 100; i++)
  {
    pop4.add(rand() % 100 + 1);
  }
  cout << "Population #4: ";
  for(int i = 0; i < pop4.samples(); i++)
  {
    cout << pop4.get_element(i) << " ";
  }
  cout << endl;
  cout << "Population #4 samples = " << pop4.samples() << endl;
  cout << "Population #4 mean = " << pop4.mean() << endl;
  cout << "Population #4 std. dev. = " << pop4.stddev() << endl;
  cout << "Population #4 90th percentile = " << pop4.percentile(0.9) << endl;

  Population pop5;
  int pop_size_5 = 237;
  srand ( time(NULL) ); /* initialize random seed: */
  for(int i = 1; i <= pop_size_5; i++)
  {
    pop5.add(rand() % 100 + 1);
  }
  cout << "Population #5: ";
  for(int i = 0; i < pop5.samples(); i++)
  {
    cout << pop5.get_element(i) << " ";
  }
  cout << endl;
  cout << "Population #5 samples = " << pop5.samples() << endl;
  cout << "Population #5 mean = " << pop5.mean() << endl;
  cout << "Population #5 std. dev. = " << pop5.stddev() << endl;
  cout << "Population #5 90th percentile = " << pop5.percentile(0.9) << endl;
  cout << "Population #5 median = " << pop5.median() << endl;
  cout << "Population #5 mode = " << pop5.mode()[0] << endl;


  double array6[] = { 2,7,2,2,2,4,4,9,4,4 };
  Population pop6(ASIZE, array6);
  cout << "Population #6: ";
  for(int i = 0; i < pop6.samples(); i++)
  {
    cout << pop6.get_element(i) << " ";
  }
  cout << endl;
  vector<double> modes = pop6.mode();
  for(unsigned i = 0; i < modes.size(); i++)
  {
    cout << "Population #6 mode = " << modes[i] << endl;
  }

  return 0;
}