A distribution over random integer-values in the range [0, k].
Declared in <absl/random/zipf_distribution.h>
template<typename IntType = int>
class zipf_distribution;absl::zipf_distribution produces random integer-values in the range [0, k], distributed according to the unnormalized discrete probability function:
P(x) = (v + x) ^ -q
The parameter v must be greater than 0 and the parameter q must be greater than 1. If either of these parameters take invalid values then the behavior is undefined.
IntType is the result_type generated by the generator. It must be of integral type; a static_assert ensures this is the case.
The implementation is based on W.Hormann, G.Derflinger:
"Rejection-Inversion to Generate Variates from Monotone Discrete Distributions"
http://eeyore.wu-wien.ac.at/papers/96-04-04.wh-der.ps.gz
| Name | Description |
|---|---|
param_type | The parameter set of the distribution. |
| Name | Description |
|---|---|
result_type | The type of the values produced by the distribution. |
| Name | Description |
|---|---|
zipf_distribution [constructor] | Constructors |
k | Returns the largest value the distribution can produce. |
max | Returns the largest value the distribution can produce. |
min | Returns the smallest value the distribution can produce. |
operator() | Function call operators |
param | param overloads |
q | Returns the exponent parameter of the distribution. |
reset | Resets the internal state of the distribution. |
v | Returns the offset parameter of the distribution. |
| Name | Description |
|---|---|
absl::operator!= | Compares two distributions for inequality. |
absl::operator== | Compares two distributions for equality. |