##### cppreference.com

##### Search

Create account

##### Namespaces

- Page
- Discussion

##### Variants

##### Views

- View
- Edit
- History

##### Actions

# std::extreme_value_distribution

From cppreference.com
< cpp‎ | numeric‎ | random

Defined in header `<random>` |  |
template< class RealType = double > class extreme_value_distribution; |  | (since C++11)

The `extreme_value_distribution` class is a `RandomNumberDistribution` that produces random numbers according to the extreme value distribution (it is also known as Gumbel Type I, log-Weibull, Fisher-Tippett Type I):

  p(x;a,b) =

  1
  b

  exp⎛
  ⎜
  ⎝

  a-x
  b

  - exp⎛
  ⎜
  ⎝

  a-x
  b

  ⎞
  ⎟
  ⎠⎞
  ⎟
  ⎠

### [edit] Member types

Member type | Definition
`result_type` | RealType
`param_type` | the type of the parameter set, unspecified

### [edit] Member functions

(constructor) | constructs new distribution (public member function) [edit]
reset | resets the internal state of the distribution (public member function) [edit]
##### Generation
operator() | generates the next random number in the distribution (public member function) [edit]
##### Characteristics
a b | returns the distribution parameters (public member function) [edit]
param | gets or sets the distribution parameter object (public member function) [edit]
min | returns the minimum potentially generated value (public member function) [edit]
max | returns the maximum potentially generated value (public member function) [edit]

### [edit] Non-member functions

operator==operator!= | compares two distribution objects (function) [edit]
operator<<operator>> | performs stream input and output on pseudo-random number distribution (function) [edit]

### [edit] Example

| This section is incomplete Reason: no example

### [edit] External links

Weisstein, Eric W. "Extreme Value Distribution." From MathWorld--A Wolfram Web Resource.

Retrieved from "http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/extreme_value_distribution&oldid=63377"
Category:

- Todo no example