Functions

[Joshua Spears]

I am having trouble running or even coming up with the functions to put in the void and double sections. Can anyone help with the blank spaces of my program so I can figure out what to use for the functions.

#include <iostream>
#include <iomanip>
#include <math.h>
#include <fstream>

using namespace std;

const int NUM_MON = 12;


	double mean(double array[], int size)
		{
		       double sum=0;
		       double result=0;
		       for (int i=0; i<= NUM_MON; i++)
		       {
		            sum+= array[i];
		            return (sum)/ size;
		       }
		}
		
	double sum(double array[], int size)
		{
		
		}
	
	double low(double array[], int size)
		{
		     double min = array[0];
		  
		     for (int i=0; i<= size; i++)
		     {
		         if (array[i]<min)
		         {
		             min=array[i];
		         }
		         return 0;
		}
		
	double high(double array[], int size)
		{
		     double max =array[0];
		     for (int i=0; i<=size; i++)
		     {
		          if (array[i]>max)
		              max=array[i];
		  
		          return 0;
		      }
		}

/******************************************************************************
Build Array Function
******************************************************************************/

void buildArrays(double gas[], double electricity[], double water[])
{
     ifstream inFile;
     
     inFile.open("expenses.txt");
     
     if (inFile.fail() )
     {
         cout<<"Unable to open expenses.txt file\n";
         exit(1);
     }
     string temp;
     int i;
     inFile>>temp; 

     for (i=0; i<= NUM_MON; i++)
     {
          inFile>> gas[i];  
     }
                  
     inFile>> temp;
        
     for (i=0; i<= NUM_MON; i++)
     {
          inFile>> electricity[i];  
     }
     inFile>> temp;
     for (i=0; i<= NUM_MON; i++)
     {
         inFile>> water[i];  
     }
}
/******************************************************************************
Print Utiities Function
******************************************************************************/	   

void printUtilityStat(string caption, double array[], int size)
{
     
}


/******************************************************************************
Get Sum Function
******************************************************************************/
void getSumArray(double gas[], double electricity[], double water[], double sums[])
{

}

/******************************************************************************
Print Array Function
******************************************************************************/

void printArray(string caption, double array[], int size)
{
	     
}

/******************************************************************************
Sort Function
******************************************************************************/

void sortArray(double array[], int size)
{

   
}

/******************************************************************************
Main Function
******************************************************************************/

int main()

{
	
	inFile.open ("expenses.txt");
	
	buildArrays(gas,water,electricity);
    for (int i=0; i<= NUM_MON; i++)
    {
         cout<< gas[i]<<endl;    
    }
	    cout<<endl<<endl<<"Lowest is "<<low(gas, NUM_MON);
	    cout<<endl<<endl<<"Highest is "<<high(gas, NUM_MON);
	  	   
			if (inFile.fail())
				{
					cout << "Unable to open expenses.txt file \n";
					exit(1);
				}
	
	
system ("PAUSE");

return 0;

}

[ui uiho]

define your functions below main please. kick our the system pause, and the exit command.
for your functions sum calculation is

int sum = 0;
for(int i = 0; i < /*length of array*/; i++) sum += array[i];

for sorting look up sorting arrays, bubble is simple enough.

printing array is a similar for loop but instead of
sum += array[i];
use
std::cout << array[i] << '\n' ;

what are you doing with get sums?
what are you doing with print utilities?

[Joshua Spears]

define your functions below main please. kick our the system pause, and the exit command.
for your functions sum calculation is

int sum = 0;
for(int i = 0; i < /*length of array*/; i++) sum += array[i];

for sorting look up sorting arrays, bubble is simple enough.

printing array is a similar for loop but instead of
sum += array[i];
use
std::cout << array[i] << '\n' ;

what are you doing with get sums?
what are you doing with print utilities?

The void getSumArray should take four one-dimensional arrays. It takaes each of the utility values for a specific month and adds them up. The stored in the corresponding location of the sum array.

The void printArray should called 3 times for three utilities in the program. It in turns calls the statistical functions (mean, sum, high, low) to print out the statistics. I dont know how to add the mean, sum, high and low doubles to the void printArray function and I am still lost.