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std::chi_squared_distribution

性病：CHI[医]平方[医]分布

Defined in header ​​
template< class RealType = double > class chi_squared_distribution;​(since C++11)

大chi_squared_distribution生成随机数x>0，根据x-平方分布F%28 x；n%29=

X%28N/2%29-1 e-x/2

*。

Γ%28N/2%29 2n/2

Γ是伽马函数%28也见std::tgamma%29和n为自由度%28http：//en.wikipara.com/wiki/dies自由28统计数字%29%29%28默认1%29。

std::chi_squared_distribution满足…的所有要求RandomNumberDistribution...

模板参数

RealType-The result type generated by the generator. The effect is undefined if this is not one of float, double, or long double.

成员类型

Member typeDefinition
result_typeRealType
param_typethe type of the parameter set, see RandomNumberDistribution.

成员函数

(constructor)constructs new distribution (public member function)
resetresets the internal state of the distribution (public member function)

世代

运算符%28%29在分布%28公共成员函数%29中生成下一个随机数。

特征

n返回自由度%28n%29分布参数%28公共成员函数%29

Param获取或设置分布参数对象%28公共成员函数%29

min返回最小潜在生成值%28公共成员函数%29

MAX返回最大潜在生成值%28公共成员函数%29

非会员职能

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

例

外部链接

 © cppreference.com

在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cpPreference.com/w/cpp/数值/随机/chi[医]平方[医]分布

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