f distribution造句

• This paper analyses deeply certain properties of special function , and uses these properties to discuss the relation between the positions of f distribution density curves with different parameters
  摘要该文较深入地分析了特殊函数的某些性质，利用这些性质分析了f分布中不同参数所对应的密度曲线之间的位置关系。
• Results show that the distributions of the permeability coefficient and anti - permeability strength are all subject to lognormal distribution , normal distribution , extremum i distribution and f distribution , and the lognormal distribution has the best fitting effect
  粗砂的渗透系数和抗渗强度概型分布均符合对数正态分布、正态分布、极值i型分布和分布，其中以对数正态分布的拟合效果最好。
• ( 3 ) how to design the bayesian test method about the parameter ' s linear hypothesis according to the relationship between the multivariate t distribution and f distribution . ( 4 ) the bayesian diagnosis and unit root test method about the random error series . ( 5 ) the bayesian mean value quality control chart when the variance is known and the mean value - standard error control chart when the variance is unknown
  然后，研究了扩散先验分布下单方程模型参数的贝叶斯估计理论，证明了模型系数的后验分布为多元t分布，模型误差项方差的后验估计为逆gamma分布；根据多元t分布和f分布之间的关系，构造了模型系数线性假设检验的贝叶斯方法；根据hpd置信区间构造了随机误差序列自相关的贝叶斯诊断和单位根检验方法，并利用单方程模型的贝叶斯推断理论研究了方差已知时的贝叶斯均值控制图和方差未知时的贝叶斯均值?标准差控制图。