查询词典 marginal distribution density function

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。

For example, the surface density is a decreasing function of radius because of it and there is a strange increasing part in the distribution of the density if it is ignored.

比如说，考虑了反常黏滞，面密度就是半径的递减函数；否则，面密度的分布中会有一段奇怪的上升曲线。

This density is consistent with the Classical density distribution,thereby it is obtained that a wave function of a charged particle in a uniform electric and magnetic field does not describe a single particle but a uniform ensembl

由此得出结论：均匀电场和磁场中带电粒子的定态波函数不描述单粒子而描述系综。

Studies on statistical properties of spontaneous spike trains of single auditory nerve have shown that the distributing patterns of interval in spike trains represent Poisson distribution. Since Poisson distribution is one of the simplest stochastic processes, previous studies on spontaneous spike trains of single auditory nerve were performed primarily by assuming them as stochastic processes. Recently, further studies on nonlinear dynamic system show that we have not enough evidence to demonstrate the process, whose distribution of probability density is exponential, is Poisson process.

中文题名豚鼠听神经单纤维放电序列的非线性特性分析副题名外文题名 Analysis on nonlinear properties in spike trains of single auditory nerve fiber in guinea pig 论文作者林龙年导师孙心德教授学科专业生理学研究领域\研究方向听觉神经生物学学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数91页关键词听神经听觉神经生理豚鼠馆藏号BSLW /2001 /Q42 /41 对听神经单纤维自发放电序列的统计特性研究表明，听神经单纤维放电间隔呈泊松分布，而泊松过程是最简单的随机过程之一，因此以往的研究主要将听神经单纤维自发放电序列作为随机过程来处理。

PIC result shows that the alteration of spatial potential in the discharge space directly affected the distribution of the charged particles, it is just the fluctuation of potential distribution caused the density distribution of the charged particles, thus an alternating-electric field formed in the plasma space.

采用二维PIC-MCC方法对氮气对称结构射频放电进行了模拟研究，粒子模拟结果表明：放电空间内空间电势的变化直接影响了带电粒子的分布，正是电势分布的波动使得带电粒子的密度分布也出现了波动。等离子体空间内形成了交变电场。

The nonparametric kernel density theory and methods are introduced to model the diameter distribution of broadleaved Pinus koraiensis in Liaoning eastern mountains in contrast with the normal distribution and Weibull distribution.

应用非参数核密度估计理论和方法，对位于辽宁东部山区的阔叶红松林标准地的红松进行直径结构模拟，并与正态分布、威布尔分布进行了比较。

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。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。