# Dirac-class

From distr v2.3.1
by Peter Ruckdeschel

##### Class "Dirac"

The Dirac distribution with location $l$, by default $=0$, has density $d(x) = 1$ for $x = l$, $0$ else.

- Keywords
- distribution

##### Objects from the Class

Objects can be created by calls of the form `Dirac(location)`

.
This object is a `Dirac`

distribution.

##### Extends

Class `"DiscreteDistribution"`

, directly.
Class `"UnivariateDistribution"`

, by class `"DiscreteDistribution"`

.
Class `"Distribution"`

, by class `"DiscreteDistribution"`

.

##### concept

- location family
- lattice distribution
- discrete distribution
- Dirac distribution
- S4 parameter class

##### See Also

`DiracParameter-class`

`DiscreteDistribution-class`

`Naturals-class`

##### Examples

```
D <- Dirac(location = 0) # D is a Dirac distribution with location=0.
r(D)(1)
# r(D)(1) generates a pseudo-random-number according to a Dirac
# distribution with location = 0,
# which of course will take 0 as value almost surely.
d(D)(0) # Density of this distribution is 1 for x = 0.
p(D)(1) # Probability that x < 1 is 1.
q(D)(.1) # q(D)(x) is always 0 (= location).
location(D) # location of this distribution is 0.
location(D) <- 2 # location of this distribution is now 2.
```

*Documentation reproduced from package distr, version 2.3.1, License: LGPL-3*

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