查询词典 multivariate

At present, the multivariate analysis for survival data is still Cox's proportional hazards regression model.

目前对生存资料的多因素分析最常用的方法仍然是Cox比例风险回归模型。

In this thesis we focused on the research of spectral distribution of large dimensional matrix and its application in multivariate statistical analysis.

本文的研究工作主要集中在大维样本协方差矩阵谱分布的理论研究及其在多元统计分析中的应用。

Multivariate Logistic regression analysis was performed to analyse the risk factors for MS.

对与MS发生可能相关的危险因素进行多因素Logistic回归分析。

Pattern recognition, obedience multivariate normal distribution of a sample of the classifier is achieved.

模式识别中，对于服从多元正态分布的样本的一个分类器的实现。

The main contents and results are as follows:Firstly, the basic theories of univariate stable distribution and multivariate stabledistributions are introduced.

主要研究内容如下：首先，介绍了一元稳定分布以及多元稳定分布基本理论。

Methods Apply epidemiological method on 208 patients to study its syndrome distribution by multivariate statistical analysis.

对208例患者进行临床调研，对所得资料采用卡方检验进行分析，研究其月经期前后单一证型的分布规律。

Especially, we verify that copula method can obtain more practical VaR value than traditional model of multivariate normal distribution.

尤其是验证了借助连接函数理论，能够取得比传统的多元联合正态分布模型更符合实际的VaR数据。

We begin by investigating M—VaR model efficiency when security rates of returns have a multivariate normal distribution.

重点研究了收益率服从多元正态分布的最优投资组合均值—VaR模型在下述三种情形下的有效边缘。

In real world simulation problems, there may not be sufficient data or information available to specify a unique joint distribution for generating multivariate random vectors.

在实际的模拟问题中，可能会因为没有足够数据或资讯以决定独特且合适之联合随机分布，而无法产生需要的多维度随机向量。

The major characteristic of the new method is that it computes the portfolio's VaR by using the functions of copula and marginal distributions only, and don't need to confirm the expression of the multivariate distribution.

其主要特点是只需要考虑连接函数与边际分布，就可以计算投资组合的在险价值，而不需要确定联合分布的具体形式。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。