# LatticeDistribution-class

##### Class "LatticeDistribution"

The `LatticeDistribution`

-class is the mother-class of the
classes `Binom`

, `Dirac`

, `Geom`

, `Hyper`

, `Nbinom`

and
`Poisson`

. It formalizes a distribution on a regular affine
linear lattice.

- Keywords
- distribution

##### Note

Working with a computer, we use a finite interval as support which
carries at least mass `1-getdistrOption("TruncQuantile")`

.

##### Objects from the Class

The usual way to generate objects of class `LatticeDistribution`

is to call
the generating function `LatticeDistribution`

.
Somewhat more flexible, but also proner to inconsistencies is a call to
`new("LatticeDistribution")`

, where you may explicitly specify random
number generator, (counting) density, cumulative distribution and quantile
functions. For conveniance, in this call to `new("LatticeDistribution")`

,
an additional possibility is to only specify the random number generator. The
function `RtoDPQ.d`

then approximates the three remaining slots `d`

,
`p`

and `q`

by random sampling.

##### Extends

Class `"UnivariateDistribution"`

, directly.
Class `"Distribution"`

, by class `"UnivariateDistribution"`

.

##### concept

- discrete distribution
- lattice distribution
- lattice of a distribution
- S4 distribution class
- generating function

##### See Also

`LatticeDistribution`

`Parameter-class`

`Lattice-class`

`UnivariateDistribution-class`

`DiscreteDistribution-class`

`Binom-class`

`Dirac-class`

`Geom-class`

`Hyper-class`

`Nbinom-class`

`Pois-class`

`AbscontDistribution-class`

`Reals-class`

`RtoDPQ.d`

##### Examples

```
B <- Binom(prob = 0.1,size = 10) # B is a Binomial distribution w/ prob=0.1 and size=10.
P <- Pois(lambda = 1) # P is a Poisson distribution with lambda = 1.
D1 <- B+1 # a new Lattice distributions with exact slots d, p, q
D2 <- D1*3 # a new Lattice distributions with exact slots d, p, q
D3 <- B+P # a new Lattice distributions with approximated slots d, p, q
D4 <- D1+P # a new Lattice distributions with approximated slots d, p, q
support(D4) # the (approximated) support of this distribution is 1, 2, ..., 21
r(D4)(1) # one random number generated from this distribution, e.g. 4
d(D4)(1) # The (approximated) density for x=1 is 0.1282716.
p(D4)(1) # The (approximated) probability that x<=1 is 0.1282716.
q(D4)(.5) # The (approximated) 50 percent quantile is 3.
```

*Documentation reproduced from package distr, version 2.2.3, License: LGPL-3*