(2007): Random vs non-random sampling: effects on patterns of species abundance, species richness and vegetation-environment relationships. Folia Geobot. 42:179- 190.DIEKMANN M., KUHNE A. & ISERMANN M. (2007):
随机抽样；随意采样
random sampling随机抽样(random sampling)是统计学中遵循随机原则选取样本的方法,每个个体被选中的概率已知,能够通过样本科学推断总体参数并计算抽样误差。其核心特点在于随机性和可量化误差,主要分为等概率与不等概率两类,并与非概率抽样或其他结构化抽样方法形成对比。 核心特点 随机抽样的核...
随机抽(取)样(random sampling) 相关知识点: 试题来源: 解析 随机抽(取)样是指保证调查对象总体中每个部分都有同等被抽中的可能的调查方法,是一种完全依照机会均等的原则进行的抽样调查,被称为是一种“等概率”。随机抽样有四种基本形式,即简单随机抽样、系统抽样、分层抽样和多级抽样...
samplingn. 取样,抽样;抽样检验,抽样调查 quasi random拟随机 random accessadj. [计] 随机存取的 non sampling非抽样的 frequency sampling【计】 频率取样 pseudo random【计】 伪随机的 better than randomadj. 更有可能的;可能性更大的 最新单词
Methods: The influences of two different derivative methods and random sampling intervals on prediction were observed.───方法:考察求导计算方法和随机采样范围对结果的影响,优选条件。 英语使用场景 In addition he suggests a random sampling of enquiries for further in-depth analysis. The figures are bre...
random sampling n.the selection of a random sample; each element of the population has an equal chance of been selected 学习怎么用 双语例句 By fusing it with a robust estimation technique of the type of randomly sampling minimal subsets, we develop the robust version of the algorithm. ...
CLAP adopts the random - sampling technique to make the clustering algorithm to be more efficient. CLAP算法通过使用随机抽样技术,提高了聚类算法的效率. 互联网 Two kinds of estimators were compared under PPS sampling and simplerandom samplingwith replacement. ...
方法/步骤 1 本例，要求我们在销售部门随机抽取两名员工外派协助销售任务。我么可以这么做。首先，我们打开Excel文件，并点击“公式向导”选项卡。2 在功能区，我们找到下图的“数学统计”模块。3 然后，我们在该模块继续点击“数学统计”。4 点击后，会出现一个下拉菜单，我们点击“随机抽取”。5 这时，会立即弹出...
Sampling methods are used by researchers to predict outcomes and draw conclusions when it is not possible to gather data from every member of a population. This lesson will describe the advantages and limitations of two such methods: random sampling, which is a type of probability sampling, and...