卡方分布在统计学中的重要性无需多言,无论在参数和非参数统计领域上都有着相当重要的占比。著名的Kruskal-Wallis(ANOVA的非参数版本)/Conover(Bartlett的非参数版本)/Bartlett/Contingency Table/单方差测试等等都需要用到卡方分布。无中心卡方分布更是金融学中CIR模型的根本。 然而,卡方分布的推导过程极其繁琐(涉及到...
卡方分布（Chi-Square Distribution）是一种概率分布，通常用于统计学和假设检验中。它的名称来源于希腊字...
Chi-squared distribution (重定向自Dens ChiSquared) Release: 4.6•5.0•5.1•5.2•5.3•5.4•6.0•6.1•6.2•6.3•6.4•6.5 X 2 continuous positive only unimodal normally-distributed TheChi-squared distributionwith «dof» degrees of freedom describes the distribution of a ...
二项分布(Binomial Distribution) 二项分布的基本描述: 在概率论和统计学里面,带有参数n和p的二项分布表示的是n次独立试验的成功次数的概率分布。在每次独立试验中只有取两个值,表示成功的值的概率为p,那么表示试验不成功的概率为1-p。这样一种判断成功和失败的二值试验又叫做伯努利试验。特殊地,当n=1的时候...
卡方分布Chi-squared Distribution 分布通过检验统计量来比较期望结果和实际结果之间的差别,然后得出观察结果发生的概率。其中O代表观察值,E代表期望值。这个检验统计量提供了一种期望值与观察值之间差异的度量办法。最后反映在数值的大小上。 那么,当大到什么程度,差异才算显著呢?这要根据自由度,设定的显著性水平查找...
The chi-squared distribution is implemented in the Wolfram Language as ChiSquareDistribution[n]. For , is monotonic decreasing, but for , it has a maximum at (8) where (9) The th raw moment for a distribution with degrees of freedom is (10) (11) giving the first few as ...
Construct Chi-squared distribution (public member function) operator() Generate random number (public member function) reset Reset distribution (public member function) param Distribution parameters (public member function) min Minimum value (public member function) max Maximum value (public member function...
student_t_distribution 类 subtract_with_carry_engine 类 uniform_int_distribution 类 uniform_real_distribution 类 weibull_distribution 类 <ranges> <ratio> <regex> <scoped_allocator> <set> <shared_mutex> <sstream> <stack> <stdexcept> <stream...
Chi-Squared Distribution - Learn about the Chi-Squared Distribution, its properties, applications, and how it is used in statistical analysis.
chi_squared_distribution(RealType n0 = 1); explicit chi_squared_distribution(const param_type& par0); 参数 n0 n分发参数。 par0 使用的参数包构造分布。 备注 前置条件: 0.0 < n0 第一个构造函数构造存储值 stored_n 包含该值 n0的对象。