第七章 交叉表的生成和分析 1 基本概念 本章描述的方法适用于分类变量 (classification variables)。 单向频数表:一维表; 交叉表:具有两个或多个分类变量的列联 表。
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In the first step, the antecedents of fuzzy classification system and input variables are coded into a binary string and treated as an individual in genetic algorithm.
第一阶段,将模糊分类系统的前件和输入变量编码为一个个体,实现了输入变量论域的动态划分和输入变量选择。
Wiped thin film evaporators are considerably described on the structure, basic functions, classification, advantages, process variables and high viscous operation.
详细介绍了刮膜薄膜蒸发器的结构、操作原理、型式和分类、特点、操作参数以及刮膜薄膜蒸发器的应用。
Firstly, classification index system was set up, then was selected in 22 original variables by the principal component analysis.
首先建立指标体系,并运用主成分分析法对22个类型划分指标进行筛选。
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