lg21c
lg21c
前言这一章的页眉是“插图”，怎么改？  
按照书上的介绍，用固定的步长是因为非平稳，当时代码中摇臂设置是平稳的，为何不用“sample_averages”来估计各个摇臂的value？二者方式差异较大，上边的图是固定步长，可见“sample_averages”法收敛的更快，但为何二者收敛的还不同  
模板做的很好，感谢你的辛勤工作！我下载了https://bookdownplus.pzhao.org/portfolio/cumtb_zh/，但是编译成pdf时，报错： ! Undefined control sequence. @{} >{\raggedright \arraybackslash }p{(\columnwidth - 4\tabcolsep... l.235 ...mnwidth - 4\tabcolsep) * \real{0.15}}@{}} ����: LaTeX failed to compile Thesis-Template-Bookdown.tex.
怎么没有实际内容？doc中也是空的
https://bradleyboehmke.github.io/HOML/random-forest.html what is the meaning of "respect.unordered.factors = "order"? 
what is the meaning of rule 3? https://cran.r-project.org/web/packages/C50/Rule 3vignettes/C5.0.html  Where does it come from? the tree model of the same data is 
The solution of package ClusterR is not best: library(ClusterR) n
[How to interpret xerror of rpart (method="class") when losses are assigned](https://stackoverflow.com/questions/37736868/how-to-interpret-xerror-of-rpart-method-class-when-losses-are-assigned)  Strangely initial xerror is extremely small and it is 0.1000 (I see this is 1/loss of class 0),...
why it is the predicted probability of survival, not die? "Plotting rpart trees with the rpart.plot package" p3 