> For the complete documentation index, see [llms.txt](https://jieandze1314.osca.top/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jieandze1314.osca.top/04.md).

# 4 实战篇：活学活用

将所学知识应用到各种数据的分析中，关键是掌握一个分析思路