hl774199525的专栏

《ggplot2 Elegant Graphics for Data Analysis》 绝对是ggplot2的最佳书籍； This book will be useful to everyone who has struggled with displaying data in an informative and attractive way. Some basic knowledge of R is necessary (e.g., importing data into R). ggplot2 is a mini-language specifically tailored for producing graphics, and you’ll learn everything you need in the book. After reading this book you’ll be able to produce graphics customized precisely for your problems, and you’ll find it easy to get graphics out of your head and on to the screen or page.

基于目前使用python较多，而python界中远近闻名的机器学习库要数scikit-learn莫属了。这个库优点很多。简单易用，接口抽象得非常好，而且文档支持实在感人。 链接地址请访问 https://github.com/scikit-learn/scikit-learn

R语言连接SQL，EXCEL

最简单的Excel连接mdb数据库模板，想使用excel记录并查询的来看看

AdobeSongStd清晰化字体。打开部分pdf会显示需要这个字体，而不论系统本身还是adobe都不带这个字体，所以在这里共享一下