样本容量

粮食品质测报样本容量优化Excel模板的设计

Design of the Excel Template for Optimizing the Sample Data from Grain Quality Determination

采用MonteCarlo模拟方法，给出了小样本容量下协整检验临界值的响应面（ResponseSurface）方程。

In this paper , we develop the response surface equations for the critical value for cointegration test in small sample using Monte Carlo simulation .

在一定的范围内，DH群体与IF2群体样本容量之间的比例越大，相关性就越小；

The sample proportion of DH to IF2 was bigger ;

联想记忆离散Hopfield神经网络的样本容量和吸引域

Sample Size and Domain of Attraction of Discrete-Time Hopfield Neural Network for Associative Memory

方法用正态分布小样本容量的简化检验（A法）和方差检验（B法）来判定两种测定方法所得结果的异同。

Methods The simplified test of normal distribution ( method A ) and analysis of variance ( method B ) were adopted to judge if the two testing methods have variation .

随着遗传力提高和样本容量变大发现QTL的能力提高，但效率下降。

The increase of heritability and sample size can enhance the power of detecting QTL , but the efficiency decreased .

基于小样本容量的IRT参数估计方法比较研究

Comparison among Parameter Estimation Methods Based on Small Sample under Item Response Theory

根据样本容量适当选取正则参数可以使得多分类Boosting算法具有一致性。

The consistency of the multi-category classification Boosting algorithms can be obtained by choosing suitable regularization parameters according to the number of the samples .

地震资料的关联维已在油气藏识别等多方面得到应用，但用于计算关联维的G－P方法要求有很大的样本容量才能达到足够的计算精度。

The associative dimension of seismic data has been applied to many fields suchas hydrocarbon reservoir recognition . However , G-P method for estimating the asso-ciative dimension needs a big sample volume to achieve enough accuracy .

本文讨论了多重线性回归中的影响分析问题，从不同角度提出了数据影响的三种度量，揭示出了数据影响与样本容量n之间的关系。

This paper discusses the influence analysis in multivariate linear regression , introduces three measures of data influence based on different sense , and reveals the relationship between the data influence and the sample size : n.

大规模T-DNA插入突变体筛选中所需T2代最小样本容量的确定方法

A Method for Determining the Minimal Sample Size of T_2 Generation Required for Large-scale Screening of T-DNA Insertion Mutants

研究了遗传力、显性比和样本容量三因素对探测F2群体MG的影响。

The results indicated that there were differences in the power of detecting major gene among the three affecting factors ( heritability , sample size and dominance ratio ) .

玉米新品种DUS测试中数量性状的适宜样本容量研究

Study on the Sample Size of Quantitative Characteristics in DUS Testing of New Varieties of Maize

PLS在处理样本容量小、自变量多、变量间存在严重多重相关性问题方面具有独特的优势。

PLS has particular predominance when deal with the problems that the sample capacity is small , variable dimension is high or badly multiple correlation is existed .

根据Costa（1998）在固定时间抽样的可变样本容量和抽样区间（VSSIFT）控制图[1]模型，研究了x图的制定方法，并设计R图和联合x-R图。

Proposes mean and range control charts with variable sample size and sampling interval time to signal for x and R charts and combined x and R charts .

因此，在QTL遗传力较低时，为了提高QTL位置和效应估计的准确度与精确度，适当的样本容量是必要的。

This result indicates that the appropriate sample size will be necessary for QTL mapping in low QTL heritability to improve the precision of estimates of QTL position and effects .

结果表明，提高先验分布的估计精度会降低贝叶斯方法估计Xp的抽样误差，当样本容量较小时效果更明显，这对水文频率分析中使用贝叶斯方法具有一定的参考价值。

The outcomes show that the sampling error of Xp can be reduced by improving the estimation of prior distribution , and this is obvious for samples with small sizes .

随着QTL遗传力、样本容量和标记信息含量的增大，QTL位置以及效应估计值的准确度和精确度逐步提高。

The accuracy and precision of estimates of QTL position and effects will be enhanced as the increasing of QTL heritability , sample size and polymorphism information content of molecular marker .

针对二维衰减谐波估计方法在大样本容量条件下计算量过大的问题，提出了一种基于二维四阶混合累积量的ESPRIT方法。

A new method for two-dimensional damped sinusoids estimation in colored Gaussian noise , called two-dimensional fourth-order mixed cumulants based on ESPRIT ( 2d-FOMCESPRIT ), is presented .

依据模拟结果，估计出该分布的6个百分位数对样本容量的响应面函数，并给出带漂移项的DF检验式中漂移项是否为零的检验用表。

Based on the simulation results , we present the response surface functions of the eight percentiles of the t-statistics and the significant test table for the drift in DF test model .

针对GUM中测量不确定度A类评定受测量样本容量大小的制约，及其对相关资料利用的不充分性，本文提出了基于贝叶斯理论的测量不确定度A类评定方法；

In allusion to the limit by sample size and insufficiency in using related data of Type A evaluation of uncertainty in GUM , the paper introduces Type A evaluation of measurement uncertainty based on Bayesian theory ;

因应用灰色理论拟合计算简单，对样本容量及概率分布没有严格的要求，且拟合精度较高，用来拟合logistic曲线不失为一种值得推广应用的新方法。

Because of its simple calculation , no strict demand on sample content and probit distribution , as well as its higher precision , grey fitting method is proved to be a deserving widely used new method to fit logistic curve .

提出了两个指标来测度这种推断的精度和可靠性，并在此基础上，依据弱大数定理，深入讨论了OD抽样的样本容量问题。

In this paper , two indexes are proposed to measure the precision and reliability of the estimation , and the problem of the samples capacity is thoroughly discussed based on weak large number theorem .

通过样本容量各为15的各层次土壤含水率的统计分析，得到了1m土层各层次的土壤含水率的变异特征。

With the statistic analysis of different soil water content rates in samples with the content of 15 , the variation characteristics of different soil water content rates at 1 m soil layer are obtained .

如QTL的遗传力10%、标记间距15cM，则样本容量300就可保证QTL的发现能力达80%以上。

For instance , the heritability of a QTL was 10 % and the marker density was 15 cM , F 2 population of 300 individuals can ensure the power of detecting QTL high 80 % .

本文以平均运行长度（APL）为衡量控制图有效性的标准，以抽样比例和最大可接受错误报警率为输入，通过建立模型的方法，确定最佳的样本容量和控制线参数。

Average production length ( APL ) is introduced as the criterion for measuring control scheme performance . A model is developed with sampling rate and maximum false alarm rate as inputs to determine the optimum subgroup size and control limits as measured by APL .

以多元统计学中的Wishart概率密度为理论依据，推导出相关系数的修正模型，该模型剔除了样本容量效应，使相关性度量更为准确可靠。

Based on Wishart probability distribution of multiple statistics , the revised model of the correlation coefficient is derived so that the sample pool doubt disappear and so the correlation coefficient becomes an accurate measure tool . 3 .

混凝土强度及疲劳寿命试验样本容量分析

Sample size analyses for tests of concrete strength and fatigue life

汉语统计语言模型训练样本容量的定量化度量

Quantitative Measurement of Training Sample Capacity for Chinese Statistical Language Model

参数估计与检验中样本容量的确定

The Establishment of Sample Content In Parameter 's Test And Estimate