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Weibull Binomial and Geo mean distribution


Jainendra Sharma
MCA/4531/10
 #include

#include

#include

double fact(int n)

{

if(n<=0) return 1;

else return n*fact(n-1);

}

double geomean(int x,double p,double q)

{

if(x>0)

return pow(q,x-1)*p;

else

return 0;

}

double weibpdf(int x, double v, double a, double b)

{

int n1,p1,q1;

if(x==0)

return fact(n1)/(fact(x)*fact(n1-x))*pow(p1,x)*pow(q1,n1-x);

else

return 0;

}

double poisson(int x, double a)

{

if(x<0 font="font">

return 0;

else

{

return (exp(-a)*pow(a,x))/fact(x) ;

}

}

double binomial(int n,double p,int r)

{

return fact(n)/(fact(n-r)*fact(r))*pow(p,r)*pow(1-p,n-r);

}

void main()

{

int ch;

double p,q,v,a,b;

int x,n;

clrscr();

do

{

printf("\nExit.");

printf("\nGeometric Mean.");

printf("\nWeibull Distribution.");

printf("\nPoisson Distribution.");

printf("\nBinomial Distribution.");

printf("\nEnter your choice => ");

scanf("%d",&ch);

if(ch==1)

{

printf("\n\tEnter the value of x,p,q => ");

scanf("%d%lf%lf",&x,&p,&q);

printf("\n\tGeometric Mean = %lf",geomean(x,p,q));

}

else if(ch==2)

{

printf("\n\tEnter the value of x,v,a,b => ");

scanf("%d%lf%lf%lf",&x,&v,&a,&b);

printf("\n\tWeibull pdf, f(%d) = %lf",x,weibpdf(x,v,a,b));

printf("\n\n\tWeibull cdf, F(%d) = %lf",x,weibcdf(x,v,a,b));

}

else if(ch==3)

{

printf("\n\tEnter the value of x,a => ");

scanf("%d%lf",&x,&a);

printf("\n\tPoisson Distribution, p(%d) = %lf",x,poisson(x,a));

}

else if(ch==4)

{

printf("\n\tEnter the value of x,p,q,n => ");

scanf("%d%lf%lf%d",&x,&p,&q,&n);

printf("\n\tBinomial Distribution, p(%d) = %lf",x,binomial(x,p,n));

}

}while(ch!=0);

getch();

}
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