ctree是否忽略具有非语法名称的变量?
我想知道ctree是否忽略具有非语法名称的变量?,r,party,ctree,R,Party,Ctree,我想知道partkykit::ctree函数是否忽略了具有非语法名称的变量,或者我是否遗漏了什么 玩具示例: myData<-data.frame( Y = factor(rep(LETTERS[1:3], each=10)), x1 = 1:30, x2 = c(1:10,2:11,3:12) ) 但当我将其名称更改为非语法名称时,它似乎在树构造过程中被忽略了: myData<-data.frame( Y = factor(rep(LETTERS[1:
partkykit::ctree
函数是否忽略了具有非语法名称的变量,或者我是否遗漏了什么
玩具示例:
myData<-data.frame(
Y = factor(rep(LETTERS[1:3], each=10)),
x1 = 1:30,
x2 = c(1:10,2:11,3:12)
)
但当我将其名称更改为非语法名称时,它似乎在树构造过程中被忽略了:
myData<-data.frame(
Y = factor(rep(LETTERS[1:3], each=10)),
`x 1` = 1:30,
x2 = c(1:10,2:11,3:12),
check.names = F
)
ctree(Y~., data=myData)
Model formula:
Y ~ `x 1` + x2
Fitted party:
[1] root: A (n = 30, err = 66,7%)
Number of inner nodes: 0
Number of terminal nodes: 1
myData感谢您指出这一点。这确实是partykit::ctree中的一个bug,但现在已在版本1.2-11(R-Forge上的当前开发版本)中修复
此外,如果您只想在打印和打印中使用非语法标签,可以使用以下快速而肮脏的解决方法:首先学习具有良好语法名称的数据
myData <- data.frame(
Y = factor(rep(LETTERS[1:3], each = 10)),
x1 = 1:30,
x2 = c(1:10, 2:11, 3:12)
)
ct <- ctree(Y ~ ., data = myData)
然后用于打印和打印
print(ct)
## Model formula:
## Y ~ x1 + x2
##
## Fitted party:
## [1] root
## | [2] x 1 <= 10: A (n = 10, err = 0.0%)
## | [3] x 1 > 10
## | | [4] x 1 <= 20: B (n = 10, err = 0.0%)
## | | [5] x 1 > 20: C (n = 10, err = 0.0%)
plot(ct)
打印(ct)
##模型公式:
##Y~x1+x2
##
##第三方:
##[1]根
##|[2]x110
##| |[4]x120:C(n=10,误差=0.0%)
绘图(ct)
不确定此帖子是否与您的问题相关,但可能会有所帮助。几乎!这里提到的方法适用于party::ctree
,但不适用于partykit::ctree
names(ct$data)[2] <- "x 1"
print(ct)
## Model formula:
## Y ~ x1 + x2
##
## Fitted party:
## [1] root
## | [2] x 1 <= 10: A (n = 10, err = 0.0%)
## | [3] x 1 > 10
## | | [4] x 1 <= 20: B (n = 10, err = 0.0%)
## | | [5] x 1 > 20: C (n = 10, err = 0.0%)
plot(ct)