title: Read data separated with two colons in R
body: <p>I am trying to read data separated with :: (two colons) in R. When I use <code>sep = "::"</code> with read.table function, I get an error message, "sep value must be one byte." I am wondering if I can read this data in R. I did not have any problem with reading this data in Python.</p>
  
  <p>For now, I use <code>sep=":"</code> and then get NA's in columns that were the other ":". So I delete columns of NA's. Is there a way to read data directly by specifying sep = "::" in R?</p>