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thangeram
Group Title
#include<stdio.h>
#include<conio.h>
#include<math.h>
float fact(int x);
void main()
{
int n,x,m,a;
float pmf,mean,var,p,q,ncr;
printf("\t\t**********poisson Distribution***************\n");
scanf("%d",&x);
printf("\nEnter value for alpha: ");
scanf("%d",&a);
pmf=(exp(a)*pow(a,x))/fact(x);
mean=a;
var=a;
printf("\n\nMean: %f\nVariancd: %f\npmf:%f",mean,var,pmf);
getch();
}
float fact(int f)
{
int i;
float s=1.0;
for(i=f;i>0;i)
{
s=s*1;
}
return s;
}
help me friends its urgent i cant find satisfying output
 2 years ago
 2 years ago
thangeram Group Title
#include<stdio.h> #include<conio.h> #include<math.h> float fact(int x); void main() { int n,x,m,a; float pmf,mean,var,p,q,ncr; printf("\t\t**********poisson Distribution***************\n"); scanf("%d",&x); printf("\nEnter value for alpha: "); scanf("%d",&a); pmf=(exp(a)*pow(a,x))/fact(x); mean=a; var=a; printf("\n\nMean: %f\nVariancd: %f\npmf:%f",mean,var,pmf); getch(); } float fact(int f) { int i; float s=1.0; for(i=f;i>0;i) { s=s*1; } return s; } help me friends its urgent i cant find satisfying output
 2 years ago
 2 years ago

This Question is Closed

nick67 Group TitleBest ResponseYou've already chosen the best response.1
hi thangeram, what's the purpose of fact function ?
 2 years ago

thangeram Group TitleBest ResponseYou've already chosen the best response.0
to check condition that ans must be below 1 and to calulate pmf
 2 years ago

nick67 Group TitleBest ResponseYou've already chosen the best response.1
as I can see that function (fact) always returns a value of 1.0
 2 years ago

thangeram Group TitleBest ResponseYou've already chosen the best response.0
hmm your correct but nick tell me why it is not giving satisfying output
 2 years ago

nick67 Group TitleBest ResponseYou've already chosen the best response.1
I don't know what the "fact" function should do on its input f
 2 years ago

thangeram Group TitleBest ResponseYou've already chosen the best response.0
i am showing you another example
 2 years ago

thangeram Group TitleBest ResponseYou've already chosen the best response.0
#include <stdio.h> #include <math.h> /* protype of "e", exp(x) == exp^x */ #include <conio.h> /* For clrscr() */ double Factorial1 (double a) { double answer = 1.0; while(a>1) answer *= a; return answer; } int main(void) { double result, res1, res2; double i = 0.0, k = 0.00; double answer = 0.0; result = res1 = res2 = 0.0; /* makes it easier to see input prompts */ printf("Enter mean: "); scanf("%lf", &i); printf("Enter value of interest: "); scanf("%lf", &k); /* factorial of value of interest */ answer = Factorial1(k); /* formula for k */ result = pow(i,k); res1 = 1/(exp(k)); res2 = (result * res1) / answer; printf("answer is ... : %0.20lf", res2); return 0; }
 2 years ago

nick67 Group TitleBest ResponseYou've already chosen the best response.1
may be it should evaluate the factorial value of f ? (f * f1 * f2 *...*1)
 2 years ago

nick67 Group TitleBest ResponseYou've already chosen the best response.1
in that case you should have: float fact(int f) { float s=1.0; while(f>0) { s=s*f; f; } return s; }
 2 years ago

thangeram Group TitleBest ResponseYou've already chosen the best response.0
thanx nick
 2 years ago

nick67 Group TitleBest ResponseYou've already chosen the best response.1
you're welcome :)
 2 years ago
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