Identify the sampling frame 确定抽样架构
According to the date of basic units census, this paper designs the sampling frame about the sampling survey of enterprises below designated size in wholesale and retail sale trades.
本文以全国基本单位普查资料为依托,对规模以下批发和零售贸易业抽样调查的抽样框进行设计,设计的思路和方法对其他小企业的抽样调查也具有一定的参考价值。
It follows by sampling frame and sampling strategy which discuss how to get the correct and precise sample in the study.
通过抽样框架和抽样策略,讨论如何在研究中得到正确准确的样本。
After smoothing, fitting and sampling the discrete space curves, the algorithm calculated Frenet frame and curvature for each sampling point.
该算法对离散的曲线进行光顺、拟合和采样,使用空间曲线微分几何性质计算各采样点的曲率和弗朗·内特标架。
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