MULTIVARIATE STATISTICS ANALYSIS 多元统计分析
zf MULTIVARIATE STATISTICS ANALYSIS 多元统计分析
I 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 令 Examples o the study of the achievement test scores of students .o the salaries of workers 2021/1/21
2021/1/21 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 令 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 2021/1/21 xt
2021/1/21 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
令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 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 2021/1/21
2021/1/21 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? 令将多个变量用一元方法进行处理,问题不就 解决了吗? 事实却与此桕悖!! 2021/1/21 cXt
2021/1/21 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！！