betar function

Beta-Binomial distribution

Return the Beta-Binomial distribution with parameters $m$, $csi$ and $phi$.

betar(m,csi,phi)

Arguments

• m: Number of ordinal categories
• csi: Feeling parameter of the Beta-Binomial distribution
• phi: Overdispersion parameter of the Beta-Binomial distribution

Returns

The vector of length $m$ of the Beta-Binomial distribution.

Examples

m<-9
csi<-0.8
phi<-0.2
pr<-betar(m,csi,phi)
plot(1:m,pr,type="h", main="Beta-Binomial distribution",xlab="Ordinal categories")
points(1:m,pr,pch=19)

References

Iannario, M. (2014). Modelling Uncertainty and Overdispersion in Ordinal Data, Communications in Statistics - Theory and Methods, 43 , 771--786

See Also

betabinomial