報(bào)錯(cuò)類型
Error: All arguments must be named
plyr中的rename和dplyr中的rename用法是不同的.
plyr::rename
rename(data, c(old=new))
dplyr::rename
rename(data, new = old)Example
比如, 默認(rèn)的是plyr的rename, 運(yùn)行下面命令, 會報(bào)錯(cuò):
d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
d
library(tidyverse)
rename(d, c("old2"="two", "old3"="three"))
rename(d, c(old2="two", old3="three"))
結(jié)果
> d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
> d
old1 old2 old3
1 1 4 7
2 2 5 8
3 3 6 9
> library(tidyverse)
> rename(d, c("old2"="two", "old3"="three"))
Error: All arguments must be named
> rename(d, c(old2="two", old3="three"))
Error: All arguments must be named
正確的打開方式:
d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
d
rename(d, two=old2, three=old3)
結(jié)果:
> d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
> d
old1 old2 old3
1 1 4 7
2 2 5 8
3 3 6 9
> rename(d, two=old2, three=old3)
old1 two three
1 1 4 7
2 2 5 8
3 3 6 9
或者使用plyr按第一種方式修改:
d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
d
library(tidyverse)
plyr::rename(d, c("old2"="two", "old3"="three"))
plyr::rename(d, c(old2="two", old3="three"))
結(jié)果:
> d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
> d
old1 old2 old3
1 1 4 7
2 2 5 8
3 3 6 9
> library(tidyverse)
> plyr::rename(d, c("old2"="two", "old3"="three"))
old1 two three
1 1 4 7
2 2 5 8
3 3 6 9
> plyr::rename(d, c(old2="two", old3="three"))
old1 two three
1 1 4 7
2 2 5 8
3 3 6 9
搞定!!!
關(guān)鍵點(diǎn), dplyr是新名稱放在前面, 舊名稱放在后面, 而且不用引號, 不用c(), 更方便!!!
另外, dplyr中的select還可以選擇+ 該名稱, 直接指定列數(shù)!!!
d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
d
select(d,one=1,three=3)結(jié)果:
> d <- data.frame(old1=1:3, old2=4:6, old3=7:9)
> d
old1 old2 old3
1 1 4 7
2 2 5 8
3 3 6 9
> select(d,one=1,three=3)
one three
1 1 7
2 2 8
3 3 9
到此這篇關(guān)于R語言中對數(shù)據(jù)框的列名重命名的實(shí)現(xiàn)的文章就介紹到這了,更多相關(guān)R語言 列名重命名內(nèi)容請搜索html5模板網(wǎng)以前的文章希望大家以后多多支持html5模板網(wǎng)！