R dataframe 列名包含减号,列名自动变为点

 

 d<- data.frame(x = c(0, 1))
 d<- data.frame(d, y = c(0,1))
 names(d)[2]<- "a.-5"
 d


x a.-5
0    0
1    1


 d1<- data.frame(d, y = c(0,1))
 d1


x a..5 y
0    0 0
1    1 1


 d2<- data.frame(d, y = c(0,1), check.names=FALSE)
 d2


x a.-5 y
0    0 0
1    1 1

 

 

REF:

https://stat.ethz.ch/pipermail/r-help/2012-January/301479.html

 

posted @ 2017-12-12 07:20 emanlee 阅读(...) 评论(...) 编辑 收藏