ggplot extensions
ggtech 主题
模型
只搜图片，看检测指标，比如ROC，看懂了检查指标，再去看之前的模型怎么构建。
只找关键词
ggplot,geom_模型参考的书: Modern Data Science with R
lm visualization
tree(decision, randomForest, bayes)
模型查代码的书，Machine Learning with R - Second Edition
dplyr and tidyr, 处理数据
- dplyr = sql, filter, join, select
- tidyr = gather (), separate
Cases
RStudio for R Statistical Computing Cookbook
The subheading “quick answers to common problem” is the more appropriate description of this book.
Ch.7 vintage, recommendation engine
datacamp
- 查没有接触到的函数，掌握: https://www.datacamp.com/
RMarkdown
- xaringan: 做PPT
- bookdown: word, pdf
- 模板，tufte
- Reproducible Research with R and R Studio, Second Edition