查询词典 marginal distribution function

For the question of distribution and acceleration of ionospheric ions O+,H+ and He+ in the magnetosphere, the ions static distribution function is found by solving the dynamic equation, and the up-flowing ion static distributions with various Kp indexes are investigated. The ions distribution function during the geo-magnetic dipolarization is simulated, and the upflowing ion acceleration in the magnetotail is investigated.

针对磁层中电离层离子O+、H+和He+分布与加速问题，采用动力论方程求解了离子定态分布函数，研究了不同Kp指数条件下上行离子的定态分布；模拟了磁场偶极化过程中离子分布函数随时间的变化，研究了上行离子在磁尾的加速。

According to the Scalar theorem, if the marginal distribution is continuous, there exists only one joint distribution.

根据Scalar 定理：当边际分布是连续的则它们存在唯一的联合分布函数（Copula 连接函数）。

The marginal distribution of the model is similar to Gamma distribution,and it can have long- or short-range dependence.

该模型的边缘分布近似Gamma分布，且其具有长或短的相关性。

Copulas are functions that join multivariate distribution functions to their one-dimensional marginal distribution functions.

Copula函数是将多维随机变量的联合分布和其边缘分布连接起来的一种函数。

In the paper,a probability distribution with t-EGARCH marginal distribution and the mnltivariate gaussian Copula is built.

建立边缘分布为t-EGARCH分布连接函数为多元正态Copula函数的概率分布模型。

Copulas are functions that joint multivariate distribution functions to their one–dimensional marginal distribution functions.

Copula用来描述多元随机变量的一维边缘分布与其联合分布之间的函数关系。

Given the specific marginal distribution, t-Copula is an easy way to get the joint distribution of return of assets in portfolio.

我们发现采用Poon（2003）提出的利用尾部相关性方法能够很好估算出极端情况下的尾部相关性系数并准确地判断出t-Copula函数适合作为资产收益的联合分布函数。

The membership function can exactly express the fuzzy satisfaction set by considering the vagueness of satisfaction degree of objectives and introducing the membership function for the fuzzy satisfaction sets of system reliability and system cost. The normal distribution and Cauchy distribution of this membership function is modified according to the fuzzy satisfaction sets. By doing this, the multi-objective optimization problem can be converted to a single-objective optimization problem to be solved.

模型充分考虑到目标满意度的模糊性，通过引入系统可靠度与费用的模糊满意集的隶属函数，并根据它们的模糊满意集对其正态分布、柯西分布进行适当修改，使之能够准确表达通常情况下的这两个目标的模糊满意集，最终，把两目标优化问题转化为常规单目标优化问题求解。

From the empirical distribution function,a new algorithm of the distribution function is obtained by using the theory of the spline function.

由经验分布函数出发，利用样条函数理论，给出构造分布函数的一种算法。

However,the image of the two density function are similar,so the images of their distribution function and empirical distribution function are similar too.

对于一组来自χ2分布或F(m1，m 2)分布的数据，用通常的作经验分布函数图像的方法，难以区分这组数据到底来自哪一个总体。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。