c++ code for the exponential smoothing formula in forcasting.

[loctovia]

//appiah-nketia akosua
//exponential smoothing formula in forecasting methods
//ucc ghana

#include<iostream>
#include<cmath>
using namespace std;


int t=0;
double alpha=0;
int numofperiod;


double result;
double formula(double alpha,int a,int f );

void main()
{

cout<<"how many periods do you want to calculate the forecast for: "<<endl;
cin>>numofperiod;

if (numofperiod>1000){
cout<<"enter a smaller number"<<endl;
cin>>numofperiod;
}
double forecast[1000]; //array for forecast and actual values
double actualv[1000];


cout<<"please enter the value of alpha "<<endl;
cin>>alpha;//accepting the alpha value(between 0 and 1) from the user

for (int i=1; i<=numofperiod; i++)
{
cout<<"please enter the values of a "<<endl;
//accepting actual data from user
cin>>actualv[i-1];
}

forecast[0]=actualv[0]; //putting initial actual value in initial forecasted vale



for (int i=1;i<=numofperiod;i++)
{
forecast[i]=(alpha*actualv[i-1]+(1-alpha)*forecast[i-1]);
cout<<"your forecast values are: "<<forecast[i]<<endl;
}

//putting subsequent final answers in forecast values

}

[kumkum01]

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kumkum

[guptamahesh]

good program but cant understand

[poojadreams]

Very informative. Please keep on posting such great posts so that every body will get good support from it.