如何从 R 中的字符串向量中删除术语“list()”？

Question

如何从下面的字符串

Vector

中删除“list()”以获得我的

desired_output

？

Vector = c("Nc", "list(\"Year\")", "list(\"# of Treatments\")")

gsub("list","", Vector) # Doesn't fully work

desired_output = c("Nc", "Year", "# of Treatments")

Answer 1

根据您的样本数据，您可以使用以下内容来

sub

剔除所有您不想要的东西：

gsub("\"|list\\(|\\)", "", Vector)

# Or since you tagged the question with `stringr`
stringr::str_replace_all(Vector, "\"|list\\(|\\)", "")

两者的输出都是：

# [1] "Nc"  "Year"  "# of Treatments"

它只是查找引号 (

\"

) 或模式

list(

或右括号 (

\\)

)。