r divide una cadena por un delimitador de columna
#Seperating a name column into first and last name.
seperate(table_name, full_name,into=c("first_name", "last_name"), sep = " ")
#sep is the delimiter to seperate by, in this case a space.
r de cadena de split
str_split(string, pattern, n = Inf, simplify = FALSE)
str_split_fixed(string, pattern, n)
str_split_n(string, pattern, n)