查询词典 variance

Attempts to attribute segments of the outcome variance to single technique variables may result in spuriously weak effects .

试图把结果不一致的部分归因于单一技术变量可能会导致虚假的没有说服力的效果。

Variance: The square of the standard deviation.

方差是标准偏差的平方。

The Standard deviation is the square root of the variance.

标准偏差是方差的平方根。

By collecting and treating the natural, social and economic conditions as well as other related information based on RS, GIS and other integrated technology. Analyzing the variance and division status of forest productivity, division of forest site, available quantities and natural quality of forest resources in Minjiang watershed. On the above researches, the evaluation was launched to the utilization suitability and adjusting of forest resources, which provided the stagy and technology about reasonably utilizing the forest resources in Minjiang watershed.

本文主要借助遥感和地理信息系统及其它集成技术，收集并处理闽江流域自然条件和社会经济状况以及相关资料信息，对福建省闽江流域森林生产力空间分异及分区状况、森林立地类型的划分、森林资源的可利用数量、自然品质等方面进行专题分析研究，在此基础上对闽江流域森林资源利用的适宜度进行评价和调整，为闽江流域森林资源合理利用提供决策和技术支持。

To adapt the variance of system state introduced by variable parameter filter, this paper develops fuzzy control method.

在分析变参数滤波器结构特性的基础上，建立了变参数滤波器滤波模型，指出了结构参数在运行过程中改变越大，定位噪声和定位速度之间矛盾的协调效果越好。

The correlation coefficient stationary process in which the mean and variance vary with time is familiar in engineering,and the traditional correlation function stationary process is just a special case of that.

相关系数平稳过程是从非平稳过程中分离出的一类工程上常见且便于研究的随机过程，其均值和方差都可随时间变化，传统的平稳随机过程是它的一个特例。

The correlation coefficient stationary process in which the mean and variance vary with time is familiar in engineering, and the traditional correlation function stationary process is just a special case of that.

相关系数平稳过程是从非平衡过程中分离出的一类工程上常见且便于研究的随机过程，其均值和方差都可随时间变化，传统的平稳随机过程是它的一个特例。

A stationary time series is one whose statistical properties such as mean, variance and autocorrelation are constant over time.

一个固定式时间数列是一个统计物产譬如手段、变化和自相关是恒定的随时间。

To apply ARIMA models the time series needs to be stationary. A stationary time series is one whose statistical properties such as mean, variance and autocorrelation are constant over time. If the initial time series is not stationary it may be that some function of the time series, e.g. taking the differences between successive values, is stationary.

运用ARIMA模型时时间序列必须是固定的，一组固定的时间序列是它的统计特性诸如平均值＼差异和自相关等随着时间的推移而始终不变，如果最初的时间序列不固定这是由它的某些函数引起的，以序列值之间的差额为例，它们是固定的

The common methods of statistical analysis for quantitative data have t test, analysis of variance and rank test.

定量资料的一般性统计分析中比较常用的方法就是t检验、方差分析与秩和检验，看起来简单，却容易出错。

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。