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Alignment problem

DoomCarnage (40)
Can anyone teach me how to align the part on the numbers in relative frequency ?
My code go like this

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# include <iostream>
# include <ctime>
# include <cstdlib>
# include <iomanip>
using namespace std ;

int check() ;

int main (void)
{
	int dieone[6]={0} , y ,z , dietwo[6] = {0}  ;
	float counttwo = 0 , countthree = 0 , countforth = 0 , countfifth = 0 ,
		countsixth = 0 , countseventh = 0 , counteighth = 0 , countnineth = 0 , counttenth = 0 , counteleventh = 0 , counttwelveth = 0 , Relativefrequency  ;
	srand(time(0)) ;
	for (int x=0 ; x<= 8999 ; x++)
	{
		int sum = 0 ;
		y = rand()%6 + 1 ;
		dieone[y-1]=dieone[y-1] + 1 ;
		z = rand()%6 + 1 ;
		dietwo[z-1]=dietwo[z-1] + 1 ;
		sum = y + z ;
		if (sum == 2)
			counttwo ++ ; 
		if (sum == 3)
			countthree ++ ;
		if (sum == 4)
			countforth ++ ;
		if (sum == 5)
			countfifth ++ ;
		if (sum == 6)
			countsixth ++ ;
		if (sum == 7)
			countseventh ++ ;
		if (sum == 8)
			counteighth ++ ;
		if (sum == 9)
			countnineth ++ ;
		if (sum == 10)
			counttenth ++ ;
		if (sum == 11)
			counteleventh ++ ;
		if (sum == 12)
			counttwelveth ++ ;
		
	}
		cout <<	"---------------------------------------------------"
			 << endl 
			 << "Sum          "
			 <<"Frequency   " 
			 <<"       Relative Frequency" ;
	for (int i = 2 ; i <= 9 ; i++)
	{ 
		cout << endl 
			 <<	"---------------------------------------------------"
			 << endl 
			 << i 
			 <<"              "  ;
		if (i == 2)
		{
			cout << counttwo 
			   	 <<"              "  ;
			Relativefrequency = (counttwo/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 3)
		{
			cout << countthree
				 <<"              "  ;	 
			Relativefrequency = (countthree/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 4)
		{
			cout << countforth 
				 <<"              "  ;
			Relativefrequency = (countforth/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 5)
		{
			cout << countfifth 
				 <<"              "  ;
			Relativefrequency = (countfifth/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 6)
		{
			cout << countsixth 
				 <<"             "  ;
			Relativefrequency = (countsixth/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 7)
		{
			cout << countseventh 
				 <<"             "  ;
			Relativefrequency = (countseventh/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 8)
		{
			cout << counteighth 
				 <<"             "  ;
			Relativefrequency = (counteighth/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 9)
		{
			cout << countnineth 
				 <<"              "  ;
			Relativefrequency = (countnineth/9000) * 100 ;
			cout << Relativefrequency ;
		}
	} 

	for (int i = 10 ; i <= 12 ; i++)
	{
		cout << endl 
			 <<	"---------------------------------------------------"
			 << endl 
			 << i 
			 <<"             "  ;
		if (i == 10)
		{
			cout << counttenth 
				 <<"              "  ;
			Relativefrequency = (counttenth/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 11)
		{
			cout << counteleventh 
				 <<"              "  ;
			Relativefrequency = (counteleventh/9000) * 100 ;
			cout << Relativefrequency ;
		}
		if (i == 12)
		{
			cout << counttwelveth 
				 <<"              "  ;
			Relativefrequency = (counttwelveth/9000) * 100 ;
			cout << Relativefrequency ;
		}
	}
	cout << endl ;
system("pause") ;
return 0 ;
}
Last edited on
Hammurabi (399)
If you ever find yourself using numbered variables, it's probably time for an array!

To align the numbers in your output, use the manipulators setw(), setprecision(), and fixed.

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#include <iostream>
#include <cstdlib>
#include <ctime>
#include <iomanip>
using namespace std;

int main()
{
	const int NUM_TRIALS = 9000;

	srand( time( 0 ));

	int dieone[ 6 ]={ 0 }, dietwo[ 6 ] = {0};
	int count[ 11 ] = { 0 }; // Index 0 holds 2's count, 1 holds 3's count, etc

	for( int i = 0; i < NUM_TRIALS; ++i )
	{
		int r1 = rand() % 6 + 1;
		++dieone[ r1 - 1 ];
		int r2 = rand() % 6 + 1;
		++dietwo[ r2 - 1 ];
		++count[ r1 + r2 - 2 ];
	}

	float Relativefrequency;

	cout << "===================================================\n";
	cout << "Sum          Frequency          Relative Frequency\n";
	cout << "===================================================\n";

	for( int i = 0; i <= 10; ++i )
	{
		cout << setw( 3 ) << i + 2;
		cout << setw( 19 ) << count[ i ];
		Relativefrequency = count[ i ] / (NUM_TRIALS / 100.0);
		cout << setw( 28 ) << fixed << setprecision( 3 ) << Relativefrequency;
		cout << "\n---------------------------------------------------\n";
	}
	cout << endl;

system("pause");
}

PanGalactic (1658)
If you ever find yourself using an array, it's probably time for vector! :-)
Hammurabi (399)
Very good point, Pan!
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