方差分析表明：63杨、69杨微纤丝角、基本密度、抗弯强度和干缩率差异显著，说明63杨和69杨受滩地类型影响较大。
It indicates that there are significant differences for microfibril Angle, basic density, bending strength and rate of shrinkage of poplar 63 and poplar 69 by variance analysis.
在需求比较稳定，有恒定的均值，较小的方差且产品回流率较小时，回流产品非常稳定。
On the occasion of invariant mean and lower variance of demand as well as lower product return rate, the amount of product return is very stable.
这些方法大致可以分为两类：一类是基于通过率的方法，另一类是基于协方差的方法。
Most of these methods fall into two categories: based on the crossing rate and based on the covariance of the received signal.
算法同时利用目标方差特性以减少虚警率。
The standard variance characteristic of target data is used to reduce false alarm rate.
其主要的解决方法是以盈余收益率的均值及其方差为研究对象，确定有效边界及最优资产配置结构。
The problem can be solved by focusing on the relationship of surplus return and surplus variance within the framework of surplus optimization.
经方差分析，两种方法嫁接成活率及成活后接穗平均生长量差异均极显著，说明红松采取劈接法嫁接优于髓心形成层贴接法。
Analysis of variance showed extremely significant on survival and COINS growth between two grafting methods, which reveals that bud grafting excelled pith-cambium grafting on Korean pine graft.
采用方差分析统计溶液渗透压对蟾蜍蝌蚪的存活率、体积变化和活动性的影响。
The effect of osmotic pressure on livability, body volume and activity of the tadpoles were analyzed with ANOVA.
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 accumulative variance contribution of the first three principal components was 35.7%. The first principal component encompassed only 20.22% of the total variation.
在传统图像灰度方差评价函数的基础上，利用小波多分辨率分析，提出了一种新的自动聚焦算法。
On the basis of evaluation function of using image intensity variance, we proposed a new auto-focusing algorithm by means of Wavelet Transform Multi-Resolution Analysis(WTMRA) theory.
方差分析表明：圆筒筛速度是影响谷粒分离率的最重要的参数。
Experimental variance analysis shows that the peripheral velocity of the rotating screen is one of the most important factors which affect the percentage of grain separation from straw and chaff.
根据湍流的动能和动能耗散率输运方程，建立了折射率起伏方差的计算模型。
Based on turbulent kinetic energy and the rate of turbulent dissipation transport equations, the equation to calculate variance of the refractivity fluctuation is modeled.
随着地轮垂直载荷的增加、抓地板高度的加大，地轮滑移率的均值、方差都减少。
With the increase of vertical load and height of ground wheel, ground wheel slide can be reduced.
马柯维兹均值—方差模型使用收益率的方差度量证券的风险，但是实际分布呈尖顶胖尾状，使得方差可能不存在。
Markowitz's mean variance model describes the risk of asset by variance, but variance may not exist because of fat tailedness of asset returns.
以发动机功率、耗油率和烟度的综合评价值为指标进行方差分析，优选最佳的乳化油配比方案。
The test result shows that we got the optimum emulsified diesel oil of definite mixing ratio by variance analysis of power smoke and consume oil.
总体上，混有添加剂煤粉的燃烧率相对于未添加任何物质的基准试样煤粉提高了20%左右，并对试验结果进行了极差和方差分析。
On the whole, the combustion efficiency of the coal powder with additives increases by 20%; meanwhile, the range analysis and variance analysis are used with the experimental data.
对106份引进及自育甘蔗品种的10个农艺性状进行因子分析，选出了4个公因子，其方差累计贡献率达84.097%。
Factor analysis was performed for 10 agronomic traits of 106 sugarcane varieties to select the top 4 factors whose cumulative contribution of variance accounted to 84.097%.
同时两种得分制得分率及得分方差有差异，故比赛技战术又有某些不同点。
Meanwhile, because of difference in the two systems, some differences are also existed in techniques and tactics.
ARCH类模型可以成功地预测金融资产收益率的方差。
ARCH models are often used to forecast the variance of the benefit of financial capitals.
本文主要介绍了在不考虑风险因素下的收益率法和引入风险因素的马科·维兹均值方差模型。
The paper mostly introduces the yield without considering risk factor and the Markowits Model which has considered risk factor.
通过对上证指数的统计分析表明，上证指数的收益率分布表现出非正态性，并存在自回归条件异方差的特征。
According to statistical analysis on Shanghai stock index, the distribution of the rate of return is non-positive skewed, and there exists an autoregressive heteroskedasticity in the rate of return.
对各生境植被因素和蝗虫群落所进行的主成分分析，结果非常理想，两维主成分的累计方差贡献率分别达到了92.558%和78.566%。
The results of PCA analyzing the vegetation factors and grasshoppers community showed, the cumulative percent of two principal components reach 92.558% and 78.566%, respectively.
股票价格的频繁波动是股票市场最明显的特征之一，自回归条件异方差类模型可以很好地预测金融资产收益率的方差。
Frequent volatility is a feature of stock market. Autoregressive Conditional Heteroscedasticity (ARCH) model is often used to forecast the variance of the benefit of financial capitals.
研究结果表明，在样本分布和量化级数不变时，泛化均方差和学习均方差是权调整率的非增函数。
Research results indicate that generalization ability and learning accuracy are the non decreasing function of weight adjusting ratio.
其中，市场状态用一个马尔可夫链来描述，各种状态之间的转换也就由相应的转移矩阵刻画，而且随机回报率的均值和协方差矩阵均处决于市场的状态。
Among them, a Markov chain is used to describe the state of the market, and the con-version between the various states will be decided by the transfer matrix.
以市场换手率度量交易量，采用自回归广义自回归条件异方差（AR-GARCH）模型研究了中国股市交易量的时间系列。
The turnover was used to measure the trading volume which was analyzed using the Autoregressive- Generalized Autoregressive Conditional Heteroskedasticity (AR- GARCH) model.
针对这一异常现象，本文通过对隐含相关收益率的因素分解，发现其来源于协方差项。
Furthermore, according to decompose the correlation implied returns, the paper find that the "anomalies" results from covariance term of implied returns.
分析中，差异性程度定量于问题总方差之上的外科医师自发差异率。
In this analysis, the degree of variability was quantified as the ratio of surgeon induced variance over total variance for the questions.
通过对我国股价指数的统计描述，表明我国金融资产收益率存在自回归条件异方差特征，并表现出非正态性。
Statistic descriptions indicate that the benefit of financial capitals in China has the characteristic of autoregressive conditional heteroskedasticity and abnormality.
这里的学习模型包括对于估测变量的方差估计，以及股票收益率与这个预测变量的协方差。
The learning model includes the volatility estimation of the predicative variables and the covariance of stock return and this predicative variable.
这里的学习模型包括对于估测变量的方差估计，以及股票收益率与这个预测变量的协方差。
The learning model includes the volatility estimation of the predicative variables and the covariance of stock return and this predicative variable.
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