Removing the end of a string of variable length
Hello all, I have a column :Protocol which contains strings of variable length in the format Character, Nominal. I've added some examples below. I am trying to remove the last 4 characters of the string from the column, and keep everything else. The last 4 characters are always one of: -001, -002, -003, or -004. I have tried to accomplish this using Word(), and Substr() but am unable to get it to ...