lg21c

what is the meaning of “agree” and “adj”？

2

tmp_df

what is the cost sensitive algorithm？ https://www.rdocumentation.org/packages/rpart/versions/4.1.19/topics/rpart 

why there is “surrogate” when no missing value？

1

library(mice) library(rpart) md.pattern(iris) #Missing value survey mytree

what is the Meaning of Surrogate Split?

6

tmp_df

what is the meaning of the return items of summay in rpart

2

library(rpart) fit

what is the meaning of "1SE above the minimum of the curve"?

5

https://stat.ethz.ch/R-manual/R-devel/library/rpart/html/plotcp.htm  l

Why do "printcp"and "plotcp" disagree？

8

library(modeldata) data(credit_data) fit

Where does the probability of root node come from?

2

library(rpart.plot) library(rpart) train

其中的latex文件夹必须有的吗？

1

1. 其中的latex文件夹必须有的吗？ 2. 何处设置了要读取这个文件夹？ 3. latex文件夹中的before_body.tex，after_body.tex等文件，是固定的吗？还是哪里设置了要读取这些文件？

公式不能正常显示，应该怎么做？

8

打开是这样的--公式不能正常显示，应该怎么做？