MULTIVARIATE STATISTICS ANALYSIS 多元统计分析
zf MULTIVARIATE STATISTICS ANALYSIS 多元统计分析
I Univariate versus Multivariate Analysis 冷 Univariate analysis Solely interested in an isolated characteristic of a set of objects, irrespective of other variable characteristics possessed by the objects ☆ Examples .o the study of the achievement test scores of students the salaries of workers 2021/2/22 2 cxt
2021/2/22 2 cxt 1、Univariate versus Multivariate Analysis ❖ Univariate analysis Solely interested in an isolated characteristic of a set of objects, irrespective of other variable characteristics possessed by the objects ❖ Examples ❖ the study of the achievement test scores of students ❖ the salaries of workers
Multivariate analysis We are concerned with the simultaneous investigation of two or more variable characteristics which are measured over a set of objects. 冷 Examples .o the study of the relationships that exist among career performance, academic achievement, and aptitude test scores .o the study of the relationships among product sales, pricing, and advertising levels 2021/2/22 cxt
2021/2/22 3 cxt ❖ Multivariate analysis We are concerned with the simultaneous investigation of two or more variable characteristics which are measured over a set of objects. ❖ Examples ❖ the study of the relationships that exist among career performance, academic achievement, and aptitude test scores ❖ the study of the relationships among product sales, pricing, and advertising levels
◇多元统计分析是运用数理统计的方法来研究 多变量(多指标)问题的理论和方法,是一 元统计学的推广。 ◆多元统计分析是研究多个随机变量之间相互 依赖关系以及内在统计规律的一门统计学科 2021/2/22 4 cxt
2021/2/22 4 cxt ❖ 多元统计分析是运用数理统计的方法来研究 多变量（多指标）问题的理论和方法，是一 元统计学的推广。 ❖ 多元统计分析是研究多个随机变量之间相互 依赖关系以及内在统计规律的一门统计学科
令有了一元统计的理论和方法,为什么还要多 元统计分析呢? 冷将多个变量用一元方法进行处理,问题不就 解决了吗? 事实却与此相悖!! 2021/2/22 5 cxt
2021/2/22 5 cxt ❖ 有了一元统计的理论和方法，为什么还要多 元统计分析呢？ ❖ 将多个变量用一元方法进行处理，问题不就 解决了吗？ 事实却与此相悖！！