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dnewdb
2012 Jul 07
4
Declaring a density function with for loop
...://r.789695.n4.nabble.com/file/n4635699/kb.png
Here alpha and beta are two parameters and x=0,1,2,3,...n (alike the
binomial distribution)
I am writing a function to find out the densities (probabilities) of this
distribution for given values of alpha and beta. The below is the my
function...
*dnewdis<-function(x,a,b,n) {
term<-0
for (j in 0:exp(10)) {
term=term+(((-1)**i)*(choose(b-1,i))*(beta(x+a+a*i,n-x+1)))
}
s=a*b*choose(n,x)*term
return(s)
}*
Since the sum inside the pdf runs from 0 to infinity, i restrict it to
exp(10)[a l...