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rstringsubstring

How to remove "()" from data frame cells?

I am trying to clean my data from a data frame's cells. I want to remove some strings, but gsub somehow omits "()". My code:

getridof <- c("(a)", "(40X)", "(5X)", "(10X_a)", "(10X)", "(_)")

for (i in 1:length(getridof)) {
  df2$Sample <- gsub(getridof[i], "", df2$Sample)  
}

but "()" is left in cells after executing the script?

Solution

  • Using gsub:

    gsub("[()]", "", getridof)

[1] "a"     "40X"   "5X"    "10X_a" "10X"   "_"

    Using stringr:

    library(stringr)
str_remove_all(getridof, "[()]")

[1] "a"     "40X"   "5X"    "10X_a" "10X"   "_"