Django是一个开放源代码的Web应用框架，由Python写成。采用了MVC的软件设计模式，即模型M，视图V和控制器C。它最初是被开发来用于管理劳伦斯出版集团（英语：Lawrence Journal-World）旗下的一些以新闻内容为主的网站的
Django is an open source Web application framework written by Python. The software design pattern of MV C is adopted, namely model M, view V and controller C. It was originally developed to manage some of Lawrence Journal-World's news-based websites. (2019-01-17, Python, 13KB, 下载2次)
因此需要找到一个合理的方法，在减少需要分析的指标同时，尽量减少原指标包含信息的损失，以达到对所收集数据进行全面分析的目的。由于各变量间存在一定的相关关系，因此有可能用较少的综合指标分别综合存在于各变量中的各类信息。主成分分析与因子分析就属于这类降维的方法。
Therefore, it is necessary to find a reasonable method to reduce the index of the needs analysis and minimize the loss of the original index, so as to achieve a comprehensive analysis of the collected data. Because there is a certain correlation between variables, it is possible to integrate all kinds of information in various variables with fewer comprehensive indicators. Principal component analysis and factor analysis belong to this kind of dimensionality reduction method. (2018-06-20, Python, 10KB, 下载0次)