抽样框

研究表明景观特征边缘密度（Li）优于抽样框内面积直接作为分层因子的分层抽样，有效地提高抽样效率和实际调查的工作效率。

The results also show that landscape features Edge Density ( Li ) is better than area directly as a stratified sampling frame . ( 3 ) The spatial stratified sampling methods based on the HJ remote sensing images and Field survey plots can effectively improve efficiency and sampling accuracy .

对丢失目标总体单元抽样框误差一种补救方法的探讨

A Remediation Method in the Case of Sampling Frame Missing Population Units

基于普查的抽样框编制方法探讨

Discussing the Compilation Method of Sampling Framework According to Census

三维随机抽样框设计方法及应用

Design and Application of Three Dimension Random Sampling Frame

二是从两个抽样框中抽样。

And 2 . sample from two sampling frames .

我国规模以下工业抽样框的问题与解决思路

Problems in design of sampling frame of under scale industry firms in China and solutions

分层抽样框效率

On the efficiency of stratified sampling frames

以武汉市4个高尔夫球俱乐部为抽样框，采用方便抽样的方法进行调查与分析。

With four golf club in wuhan city as the sampling frame , adopt the method of convenient sampling investigation and analysis .

同时，税务部门有较系统的抽样框、日新月异的计算设备、高素质的税务干部以及其他专业统计的抽样调查实践经验可借鉴，这些都为抽样调查技术在税务管理中的应用提供了现实可能性

Meanwhile , tax departments have systematic sampling frame , modern equipment , qualified tax collectors and practical sampling experience , which provide the feasibility of using sampling technology in the tax management

方法：于2004年10~12月，以工作单位为抽样框对武汉市公务员进行随机整群抽样，进行牙周状况检查，以肥胖指数作为衡量肥胖的参数。

Methods : From November to December 2004 , the cross-sectional survey on obesity and periodontal conditions was carried out to 493 officeholders in Wuhan city with random cluster sampling method as working-unit , 458 of which were finally studied according to the included rules .

规模以下批发和零售贸易业抽样调查样本框的设计

The Sampling Frame Design of the Sampling Survey of Enterprises below Designated Size in Wholesale and Retail Sale Trades

限额以下贸易业抽样调查中的抽样框问题

Sampling Frame for the Survey of Enterprises under Quota Limits

方法：应用按比例抽样原理，建立三级抽样框，抽样比为15%的问卷抽样调查。

Method : According to the principle of proportional allocation , a three-stage sampling survey was set up . A questionnaire was used with a sampling ratio of 15 % .

在限额以下贸易业抽样调查中，抽样单位变动频繁，抽样框极不稳定，对抽样估计的精度带来不利的影响。

Because of the frequent changes in the item units to be sampled for enterprises under the quota limit , the sampling frame is rather unstable , which exerts adverse impact on the precision in assessing the samples .

目前，抽样调查在我国已经得到比较广泛的应用，但抽样框的编制工作往往感到比较困难，特别是关于规模以下企业（小企业）的抽样调查。

At present , in our country , sampling techniques have been applied extensively in the survey of enterprises below designated size .

给出了限额以下批发零售业、餐饮业抽样调查限额的确定方法，探讨了这部分调查单位抽样框的确定方法及抽样的组织方式。

The paper designs the definite method about quantity of sample investigation in wholesale , retail sale and catering trade under designated size and discusses the sampling area and organization in this aspect .

在利用抽样调查开展社会研究的过程中，应科学合理地编制抽样框和选择抽样方式，采用多种手段尽可能获取真实信息。

In making sample survey to conduct social research , we should make sample column and choose the sampling approach in a scientific and rational way , adopting various approaches to get real information as much as possible .