查询词典 multivariate

In this paper, we studied the robust estimation and the multivariate Laplace distribution which is closely related with the robust estimation.

本文主要研究了稳健估计及与之密切相关的多元拉普拉斯分布。

The third aspect: we consider comparison of Minimum Norm Quadratic Unbiased Estimator and ordinary least squares estimator of in the multivariate normal linear model Y ~ N{XB, V, where the design matrix A' need not have full rank and the dispersion matrix V can be singular.

使用的损失函数有二次损失函数、嫡损失函数和对称损失函数。论文基于以下三个准则：二次损失风险准则、嫡损失风险准则和对称损失风险准则，将MINQUE和LSE进行比较。

The partial derivative of a multivariate normal integration, a extension case of Leibnitz's Rule, is derived in this study and used to derive the SCOs sensitivities.

一个多维度常态积分的偏微分关系，可以被视为莱布尼兹法则(Leibnitz's Rule)的推广，也在本研究里推导而得，并且被用来推导序列复合选择权的敏感度分析。

Univariate and multivariate analyses were performed with the logistic likelihood ratio test and the Cox proportional hazards model, respectively.

分别采用对数似然比检验和Cox比例风险模型进行单变量和多变量分析。

In order to reduce calculation error, the frequency distribution of average values is used to compute the mixed distribution's digital features of each component distribution, thereinto, the number of the component distribution is determined by AIC, choose the number that meets the minimum value of AIC as the component number of mixed distribution, and the other parameters are estimated by EM algorithm; Secondly, because each component distribution is corresponding to a kind of major gene genotype, according to the values of the average and variance of the each component distribution, we can use the limit error of the normal distribution to plot each individual into the correspondent component distribution, namely into correspondent major gene genotype. Then we regard each major gene genotype as a treatment level of one-way analysis of variances, and the one-way multivariate analysis of variance is carried out to calculate the covariance matrix of major gene effect, covariance matrix of polygene effect, covariance matrix of environment effect and so on; At last, combining the weights of the each component distribution of mixed distribution, we can calculate the variance of major gene effect, the variance of polygene effect, environmental variance and the genetic gain of the quantitative trait.

为减小计算误差，本研究采用均值的频数分布来计算各成分分布的数字特征，其中成分分布个数根据AIC准则，选择使AIC值达到最小的成分分布个数作为混合分布的成分分布数，分布中其它参数的确定利用EM算法来估计；其次，每个成分分布对应一种主基因基因型，根据各个成分分布的均值和方差，利用正态分布的极限误差将每个个体划分到相应的成分分布中，即相应的主基因基因型中，将每种主基因型作为单因素方差分析的一个处理水平，对其进行单因素的多元方差分析，分别计算主基因效应协方差阵、多基因效应协方差阵、环境协方差阵等参数；最后结合混合分布中各成分分布的权重即各主基因基因型的分离比例，计算主基因效应方差，多基因效应方差和环境方差，以及遗传力等参数，进而计算该数量性状的遗传进展。

This paper has carried on the discussions about some key questions of multivariate statistical modeling, such as choice of statistical variable, the system linear approximation and the noise influence and so on.

同时对多元统计方法的统计变量选择、系统线性近似和噪声影响等多元统计建模的关键问题进行了探讨。

Linear models for dependence analysis (multivariate regression, MANOVA, and discriminant analysis) and for interdependence analysis (principal components and factor analysis).

相依分析线性模型社会科学中的多元分析：(多元回归， MANOVA 和判别分析)相依关系分析。

Then according to them the multivariate linear regression equation obtained.

并根据这八大类因子求得多元线性回归方程。

Journal of Financial Economics, as an evaluation measure for multivariate linear asset pricing models.

金融经济学杂志，作为一个多元线性资产定价模型的评价措施。

abnormal metabolism of triglyceride is an independent risk factor of CHD by multivariate analyses when a challenge test of triglyceride metabolism such as postprandial lipemia is used.

结果高度提示，餐后血清TGRL代谢异常与CHD独立显著相关，是独立危险因素之一。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。