请帮我翻译下下面一段，中译英因子分析模型是主成分分析的推广，它也是利用降维的思想，由研究原始变量相关矩阵内部的依赖关系出发，把一些具有错综复杂关系的变量归结为少数几个

Question

请帮我翻译下下面一段，中译英
因子分析模型是主成分分析的推广，它也是利用降维的思想，由研究原始变量相关矩阵内部的依赖关系出发，把一些具有错综复杂关系的变量归结为少数几个综合因子的一种多变量统计方法。各地区就业人员工资总额是经济发展的重要指标之一，他一般含有19个代表不同行业的变量。本论文的研究的目的就是通过因子分析将关系变量（指标）的数量进一步缩小。

Answer 1

Factor analysis model is an extension of the principal component analysis, it also used the idea of dimensionality reduction, by the dependence of the correlation matrix of original variables of to some of the complex relationship between the variables is reduced to a few integrated factors, a multivariate statistical method. The total wages of employees in various regions is one of the important indicators of economic development, he generally contains 19 variables representing different industries. The purpose of this paper is to further reduce the number of relational variables (indicators) by factor analysis.