<分区>
我正在尝试删除数据框的字符串元素之一中存在的“+”字符。但我找不到解决方法。
下面是数据框。
txtdf <- structure(list(ID = 1:9, Var1 = structure(c(1L, 1L, 1L, 1L, 4L,
5L, 5L, 2L, 3L), .Label = c("government", "parliament", "parliment",
"poli+tician", "politician"), class = "factor")), .Names = c("ID",
"Var1"), class = "data.frame", row.names = c(NA, -9L))
# ID Var1
# 1 government
# 2 government
# 3 government
# 4 government
# 5 poli+tician
# 6 politician
# 7 politician
# 8 parliament
# 9 parliment
我试了两种方法，都没有达到预期的效果:
方式一
txtdf <- gsub("[:punct:]","", txtdf)
# [1] "goverme" "goverme" "goverme" "goverme" "oli+iia" "oliiia" "oliiia"
# [8] "arliame" "arlime"
我不明白这里出了什么问题。我希望将第 5 个元素的“+”字符替换为没有值，但所有元素都按上述方式编辑。
方式2
txtdf<-gsub("*//+","",txtdf)
# [1] "government" "government" "government" "government" "poli+tician"
# [6] "politician" "politician" "parliament" "parliment"
这里完全没有变化。我想我已经尝试过的是，我尝试使用双斜杠转义 + 字符。