Updated: Plyr rename() not recognizing identical 'x'; Error: The following `from` values were not present in `x`:

Updated: Plyr rename() not recognizing identical 'x'; Error: The following `from` values were not present in `x`:

R 3.2.4 Plyr 更新于 2016-03-10

我正在尝试重命名大型数据集中的列并 运行 进入 "The following from values were not present in x:" 错误。

origin 导出的列非常糟糕，这就是我使用 plyr rename 的原因，但似乎即使 rename 也有问题。示例故障列是 linked 数据集中的 [3]，标题为：

"Experimental.or.quasi.experimental..evaluation..compares.mentored.youth.to.a.comparison.or.â.œcontrolâ...group.of.non.mentored.youth..NS8"

下载 link 到 csv here： 代码如下：

test<-read.csv(file="test.csv",header=TRUE)
library(plyr)
test2<-rename(test,
         c(
           "Experimental.or.quasi.experimental..evaluation..compares.mentored.youth.to.a.comparison.or.â.œcontrolâ...group.of.non.mentored.youth..NS8"="new"))

尝试改用 setNames：

library(plyr)
test2 <- rename(test, setNames( "new", names(test[3])))

names(test2)

[1] "Implementation.evaluation..examines.how.well.or.efficiently.services.were.delivered.to.participants..such.as.tracking.mentor.mentee.meetings..participation.in.trainings..etc....NS8"
[2] "Outcome.evaluation..examines.changes.in.participants.served.using.pre.post.data.collection..NS8"                                                                                     
[3] "new"                                                                                                                                                                                 
[4] "Return.on.investment.study..examines.long.term.impacts.from.an.economic.perspective..often.in.relation.to.program.costs..NS8"