The Helmert variance component estimation formula.
赫尔默特方差分量估计公式。
Further Broof on the Equivalence of the Formulas of Variance-covariance Component Estimation.
方差-协方差分量估计公式等价性的进一步证明。
Objectives: To explore the applicability of two level variance component model in research on variability between interviewers.
前言：目的：探讨两水平方差成份模型在评价调查者间变异的应用价值。
Variance component model of the random effects of covariance matrix unit for the "Linear model introduction" matrix has been studied.
方差分量模型的随机效应的协方差为单位阵时《线性模型引论》已进行研究。
Methods Two-level variance component model was used by MLWIN2.0 to evaluate the reliability of satisfaction scale within investigators.
方法采用软件MLWIN2．0，运用两水平方差成分模型评价满意度量表调查员间的信度；
Spectral decomposition estimators of variance component matrix in mixed linear model are generalized to multivariate mixed linear model.
考虑含有两个方差分量矩阵的多元混合模型，将一元混合模型下的谱分解估计推广到多元模型下。
With two types of observations, using Helmert variance component estimation, it can improve adjustment precision through multiple iterations.
并对两类观测值，利用赫尔默特方差分量估计，通过多次迭代计算，提高平差精度。
Thus, we find that the variance component at the local level accounts for a major portion (76%) variance in local hazard mitigation policy adoption.
因此，我们发现方差成分在局部层面占大部分地方不同的(76%)相对减低灾害伤亡的政策选择。
The variance component analysis revealed that the ratios of additive genetic variance to phenotypic variance of the majority of economic traits were high.
进一步的方差组分估计表明，主要经济性状的加性遗传方差较大。
The variance component of cross and backcross generations of quantitative character controlled by multigenes is studied on condition of chromosome translocation.
研究了染色体易位情况下，多基因控制的数量性状杂交及回交世代的方差组成。
Methods We applied generalized linear mixed models for the nuclear family data to set up the genetic variance component model and estimated parameters using MCMC.
将广义线性混合模型应用于核心家系资料建立遗传方差分量模型，运用MCMC方法进行参数估计。
The program can conduct rigorous adjustment and variance component estimation on all kinds of control networks and output all kinds of information after adjustment.
本程序能对各种类型的控制网进行严密平差及方差分量估计，并输出平差后的各种信息。
In order to obtain the optimal parameter estimates and reasonable accuracy evaluation should use Helmert variance component estimation method to deal with the combined adjustment.
为了得到参数的最优估计和合理的精度评定，应利用赫尔默特方差分量估计法进行联合平差处理。
In this paper, the robust variance component estimation is introduced into the satellite orbit determination to resist the effects of outlying observations and to determine the weights.
针对卫星精密定轨过程中观测资料存在粗差以及观测资料的合理定权问题，将抗差方差分量估计引入到卫星精密定轨中。
Conclusion:In the condition of unrepeated measurement, the variability between interviewers can be estimated by fitting two level variance component model for normally distributed data.
结论：对于问卷项目的应答为连续性正态分布的数据，在拟合重复调查的情形下，可以采用两水平方差成份模型评价问卷项目应答的信度。
This paper will focus on the impact of estimation variance on the measurement and control component of governance.
本文将关注估算对管理的度量及控制部件的偏差的影响。
The accumulative variance contribution of the first three principal components was 35.7%. The first principal component encompassed only 20.22% of the total variation.
主分量分析得到的前三个主分量的累计方差贡献率为35.7%，第一主分量的方差贡献率为20.22%。
The results show temperature spatial variations have high consistency, the variance ratio contribution of the first principal component is about 75%.
结果表明：祁连山附近气温在空间上具有很好的一致性，年平均气温的第一主成分的方差贡献可占总方差的75%左右。
Method Using 4-factor and 4-level orthogonal test, the best structure and component has been decided and the analysis of variance is also done to the result of the experiments.
方法采用4因素4水平正交实验，确定其最佳结构组成，并对实验结果进行方差分析。
Linear models are especially important statistical models, including linear regression model, variance and analysis, covariance and analysis, and variance and component one etc.
线性模型是很重要的一类统计模型，它包括线性回归模型、方差分析模型、协方差分析模型和方差分量模型等等。
This method can be used without assuming that lives of system or component follow time-to-failure distribution, decreasing reliability and variance errors due to incorrect life distribution selection.
该方法不需假设系统或单元产品的寿命服从某一分布，减少了因寿命分布选择不当所造成的可靠性和方差的误差。
The 21 traits of 42 cultivators in Dendrobium nobile were studied by morphological variance and correlation and principal component analyses.
采用多元统计分析，对春石斛兰花42个栽培种21个主要性状进行了形态变异、性状相关和主成分分析。
Overall main component, the overall calculation of the main component, the nature of the overall component, the main component of the covariance matrix and the total variance.
说明：总体主成分，总体主成分的计算，总体成分的性质，主成分的协方差矩阵及总方差。
The trend component series derived in this way can near more exactly the trend component curve of the variance-stationary random signal.
该方法得大连理工大学博土学位论文到的趋向性序列能更准确地逼近非平稳随机信号的趋向性曲线。
Then the data were analyzed by the absolute principal component analysis (APCA) to evaluate principal components and the percent variance explained by them.
对获得的浓度数据进一步作绝对主成分分析(APCA)，获取颗粒物的主要来源成分和它们所占的比值。
The trend component series derived from this way can near more exactly the trend component curve of the variance-stationary random signal.
该方法得到的趋向性序列能更准确地逼近非平稳随机信号的趋向性曲线。
Results:The principle component of standardized correlation matrix does not represent the variance weight of gene frequency matrix.
标准化相关阵的主成分反映的仅是“相关信息量权”，不包括“方差信息量权”。
Results:The principle component of standardized correlation matrix does not represent the variance weight of gene frequency matrix.
标准化相关阵的主成分反映的仅是“相关信息量权”，不包括“方差信息量权”。
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