查询词典 covariance

It is almost certain that genetic influences will be found, as will genetic covariance between entrepreneurship and other psychological traits.

几乎可以肯定的是，遗传的影响可以通过研究创业行为和其他心理特征的遗传协方差得以证明。

The algorithm can be applied to tracking nonlinear and maneuvering targets without knowledge of the certain noise covariance in advance.

该算法可以用在非线性和机动目标跟踪问题中，不必预先知道准确的噪声方差。

To solve the problem that the-spectrum estimation performance based on covariation under the-stable noise environmentbecomes obviously worse when the distribution parameter is small,a method of fractional low-order covariance spectrum estimation was proposed.

针对在分布参数值较小时稳定分布噪声下基于共变的谱估计性能较差这一问题，提出了一种分数低阶协方差谱估计方法。

Using Hong(2001)'s method based on Cross Covariance Function and Error Correction Model, we study Granger causality and information spillovers among major global crude oil markets including London, New York, Dubai as well as Tapis and Minas in Southeast Asia.

采用基于协相关函数的Hong(200l)方法和基于协整理论的误差修正模型系统研究了全球原油市场的Granger因果关系与信息溢出。

This system, and canned carry out the covariance of data and search, the customer debarkation succeeded later the customer can modify a password at will,write to think for the family customer consumedly.

本系统增强了管理系统的功能，并且能够实现数据的统计和查询，用户登陆成功以后用户可随意修改密码，大大为家庭用户着想。

The sufficient and necessary conditions of positive definitiveness of a covariance matrix from multivariate discrete data are obtained.

本论文通过引入p-向量配、I-线性组合及它们的性质，研究离散型样本协方差矩阵的正定性问题。

In a special case of 2 dimensional variables, the probability of the positive definitiveness of the discrete sample covariance matrix is given in term of sample size and variable dimension. Based on the results, the optimal sample size is provided in this thesis.

推出了离散型样本协方差矩阵正定的充要条件，得到了求离散型样本协方差矩阵正定概率的模型，建立了特殊情况下的抽样优化模型。

This thesis discussed the positive definitiveness of the covariance matrix of sample whose variables are discrete data by using p-vector match, I-Linear combination and their properties.

对于变量取离散数据的样本协方差矩阵的正定性，很少有学者进行研究。

CO2-Forced Climate and Vegetation Instability During Late Paleozoic Deglaciation - The covariance of atmospheric CO2 levels, surface temperatures, and global ice volume indicates that greenhouse gases controlled climate about 300 million years ago.

二氧化碳被迫在晚古生代气候和植被不稳定冰消-方差大气二氧化碳水平，表面温度、与全球冰量显示控制温室气体气候约三亿多年ago.authors：伊莎贝尔页montańez，尼尔j。

It deriver the test methods based on the point estimations of the marginal proportions and the covariance matrix of the points estimations in 2×2 table.

这类问题可以归结为：设第一次观察的结果记为Y1 ；第二次观察的结果记为Y2 。其中，Y1 和Y2 都是随机变量，两者的可能取值都为 1和 2。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了