查询词典 variance

Compared to the traditional forcast error variance decompostition, this new method doesn't depend on the order of the variables in the VAR model.

文章利用广义方差分解研究了沪市各个分类指数之间的关系，显示了系统冲击在各个行业指数之间传递的特点。

No degrees of freedom left to estimate the error variance when the data of this design are analyzed, so the standard ANOVA can t be used.

然而在分析这类数据时因为无多余的自由度可用于估计误差方差，因而不能采用标准的方差分析法。

Furthermore, the situation of the targets and imaging devices considering noise is studied. The recurrence formula of parameter estimation and the steady variance of estimation error are given.

进一步研究了目标受到干扰及成像设备存在噪声情况下的目标运动参数的估计问题，得到了参数估计的递推公式，并给出了估计误差稳态方差的范围。

The results of variance and residual error showed that the error was in the range of kinetic toleration. and the experiment did not have system error.

对上述模型进行了方差和残差分析，其误差在宏观动力学研究允许范围内，试验无系统误差。

Absolute error: The variance between the value measured by the meter and the actual value of the object being measured.

测量误差（3）Measuring error：①绝对误差：仪表测量出的数值与被测量对象的实际值之间的差值称为绝对误差。

Means that the variance in the error term, u, conditional on the explanatory variables, is the same for all combinations of outcomes of explanatory variables.

意思是，不管解释变量出现怎样的组合，误差项u的条件方差都是一样的。

After that, the author focus his attention on the pure sequential confidence for the error variance in linear models.

紧接着，作者把注意力转移到线性模型误差方差的纯序贯区间估计。

Block recursive model ; Axiom of error ; Variable linear system error ; Constant system error ; Variance analysis

块递归模型；误差公理；可变线性系统误差；恒定系统误差；方差分析

For robustness of parameter estimation of linear model,we obtain the maximal classes of the error distribution,in which Generalized Least Squares Estimate,Gauss-Markov Estimate of estimable function of parameters,and Minimum Norm Quadratic Unbiased Estimator of variance maintain their optimal statistical properties.

这些研究成果不仪具有比较深刻的理论意义，还具有较为广泛的应用价值。

In most cases, the variance of the noise is unknown, so it needs to be estimated.

在大多数情况下，噪声的方差是未知的，需要对其进行估计。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。