R - Character type

Card Puncher Data Processing


A vector containing character values.


  • One
> v = "My Name";
> class(v)
[1] "character"
  • List
> v <- c("My Name","Is","Nico")
> class(v)
[1] "character"


Counting the number of occurrence

str_count("/mt/path", "/")
[1] 2


Concatenate vectors after converting to character.

helloWorld <- paste0("Hello", "world", sep=" ")


  • sep is the separator character between the arguments

Escape \ Quotes



substr(x, start, stop)
substring(text, first, last = 1000000L)
substr(x, start, stop) <- value
substring(text, first, last = 1000000L) <- value


  • grepl returns a logical vector (match or not for each element of the input x).
test = "[nqSError: 46066]"
[1] TRUE

  • grep will filter the vector.

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Card Puncher Data Processing
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