str_sub {stringr} | R Documentation |
Extract substrings from a character vector.
str_sub(string, start=0, end=Inf)
string |
input character vector |
start |
integer vector giving position of first charater in substring, defaults to first character. |
end |
integer vector giving position of last character in substring, defaults to last character. |
sub_str
will replicate all arguments to be the same length as
the longest argument. If any arguments are of length 0, the output
will be a zero length character vector.
character vector of substring. Will be length of longest input argument
substring
which this function wraps
hw <- "Hadley Wickham" str_sub(hw, 1, 6) str_sub(hw, end = 6) str_sub(hw, 8, 14) str_sub(hw, 8) str_sub(hw, c(1, 8), c(6, 14)) str_sub(hw, seq_len(str_length(hw))) str_sub(hw, end = seq_len(str_length(hw)))