Runuran (version 0.5)

unuran.discr-class: Experimental class "unuran.discr"

Description

The class "unuran.discr" provides am interface to UNU.RAN objects for discrete distributions. The interface might be changed in future releases. Do not use unnamed arguments!

Details

Create a new instance of an "unuran.discr" object using

new ("unuran.discr",pv=NULL, pmf=NULL, lb=0, ub=Inf).

[object Object],[object Object],[object Object]

The user is responsible that the given informations are consistent. It depends on the chosen method which information must be given / are used.

References

J. Leydold and W. H"ormann (2000-2007): UNU.RAN User Manual, see http://statmath.wu-wien.ac.at/unuran/.

See Also

unuran, unuran.new.

Examples

## Create discrete distribution with given probability vector
pv <- c(1.,2.,1.5,0.,3.,1.2)     ## PV need not be normalized
dpv <- new("unuran.discr",pv=pv)
## Make generator (using method DGT)
unr <- unuran.new(dpv, "dgt")
## Draw sample of size 100
x <- unuran.sample(unr, 100)

## Create discrete distribution with given probability mass function
pmf <- function(x) dbinom(x,100,0.3)
dpmf <- new("unuran.discr",pmf=pmf,lb=0,ub=100)
## Make generator (using method DGT)
unr <- unuran.new(dpmf, "dgt")
## Draw sample of size 100
x <- unuran.sample(unr, 100)