样本大小

糊状态风险分析的广义Logistic回归理论与应用（7）&病例对照研究设计中样本大小与统计功效的估计

The Theory and Applications of Generalized Logistic Regression for Risk Analysis of Fuzzy States ( 7 ) & Estimating Sample Size and Statistical Power in Case Control Designs

先对数据集进行分层减法聚类得到np个色彩相似的子集，由于np远小于数据样本大小n，将极大地提高FCM的运算速度。

The first layer of the Subtractive Clustering data sets have a similar color np a subset of the data because the sample size is much smaller than n , will greatly enhance the computing speed of FCM .

关于环的正则性研究上述规律又直接受样本大小n和站点数目p的影响。

On the Regularity of Rings The regularity depends directly upon the sample length n and the number of stations p.

介绍了平均样本大小（ASN）的计算公式，举例说明了ASN的3种计算方法：直接推导法；

Calculation methods of average sample number ( ASN ) were described , and the three methods were discussed through an example .

国内HDV感染分布不一，除可能与地区、调查样本大小有关外，特别是与调查对象HBV感染的临床诊断分型更有密切关系。

The distribution of HDV infection was not even in China according to the published literature . This perhaps was related to the sample size of investigation and , especially , the clinical diagnosis of the HBV infection of the investigated patients .

用统计试验法确定韦伯总体取样的样本大小

Determination of Sampling Size of Weibull Population by Statistical Experiments Method

随机抽样误差与样本大小的分析

The analysis for random sampling error and the number of samples

基于仿真方法的可靠性试验样本大小决策

Reliability Test Sample Size Decision-Making Based on Simulation Method

比例估计中样本大小的设计方法

Designing methods of sample size in estimation of proportions

抽样检查方案平均样本大小的计算方法

Study on the Calculating ASN Method for Sampling Inspection

目的为调查设计中常用的分层三阶段随机抽样方法寻求其样本大小估计公式。

Objective To deduce the formulate of the sample sizes for stratified three-stage sampling .

科学家们打算在不同的条件下扩大样本大小进行深入研究。

They intend to do further studies with larger sample sizes in different conditions .

的SAS/STAT信号软件包括一个简单易用的电源和样本大小的计算使用的界面。

SAS / STAT software includes an easy-to-use interface for Power and Sample Size computations .

分层三阶段抽样样本大小的研究及应用

The Method to Estimate the Sample Sizes for Stratified Three - Stage Sampling and its Application

探讨了样本大小与测量标准偏差波动的关系。

This paper also investigates the influence of the sample size on the variation of standard deviation .

栽培措施和样本大小对冬小麦离体叶片失水的影响

Influence of Cultivation Practice and Sample Size on Water Loss of Excised - leaf in Winter Wheat

计算多重检验法要求的重复数（样本大小）或功效可为基因芯片实验设计提供重要的参考。

Calculation of power / replicate numbers required in multiple-testing procedures provides design guidance for microarray experiments .

样本大小是该地区，该扫描仪编码内容创建一个单独的像素。

The sample size is the area that the scanner encoder reads to create an individual pixel .

在用升降法测定雷管发火电流的试验中，考察了发火电流值的分布情况，确定了用升降法试验时所采用的步长和样本大小。

The up-and down test method for firing current of electric detonator is discussed in the paper .

样本大小的概率比例

Probability proportionate to size

局限性：粪便取样方法已经被标准化了，但是样本大小取决于粪便的稠度。

LIMITATIONS : The fecal sampling method is standardized , but the sample size depends on fecal consistency .

本探讨提出了一种根据预备调查的生物样本大小来确定保险系数的生物样本估计方法。

Biological sample estimation method was put forward according to prepare inquisitional biological sample size to establish insurance coefficient .

人群样本大小，足以大到与整个人群相比吗。

Does the sample size of the population , is it large enough compared to the population as a whole .

缺点是，它价格昂贵，以收集，耗时和需要大量样本大小是正确的。

The disadvantages are that it 's expensive to collect , time consuming and needs a large sample size to be accurate .

样本大小不足，有偏差的样本，非独特的观念和研究中的科学缺陷。

An inadequate sample size , a biased sample , a non-unique concept , and scientific flaws in the study are common faults .

目的：论述病例对照研究设计中样本大小与统计功效估计方法。方法：采用常用便于编写电脑软件的计算公式。

In this papper , some methods estimating sample size and statistical power in non matched and matched case control designs , are described .

采用箭头下第一个抽样计划，如样本大小等于或超过批量时，则用100%检验。

Use first sampling plan below arrow . If sample size equals , or exceeds , lot or batch size , do 100 percent inspection .

常见的估计样本大小的一些公式，都只考虑了犯Ⅰ、Ⅱ类错误的概率，而没有考虑到试验的费用。

Some ordinary formula on estimating sample sizes only took account of the probabilities of conflicting errors ⅰ and ⅱ, while experimental expanses was left unconsidered .

结果：主要影响样本大小的参数为易感基因频率、环境因素暴露率、基因遗传方式，而疾病的发生率对样本量影响很小。

Results : The most influential parameters of sample size were susceptibility frequency of the genotype , environmental exposure factors in the population , and genetic modes .

结论依据感染率预估值确定混合样本大小与混合样本量的研究思路，具一定的可行性。

Conclusion Based on the criterion of MSE and the predicted vector infection rate , the method was proved feasible in determining pool size and number of pools .