Replace consecutive '?' separated by '->', '<-' or '||' with 'X(s)'
Replace '?' with 'X'
     
    
    Usage
    replaceQuestionMarks(prot, by_column = "GenContext")
 
    
    Arguments
- prot
- DataTable to operate on 
- by_column
- Column to operate on 
 
    
    Value
    The original data frame with the specified column updated. All
consecutive '?' characters will be replaced with 'X(s)', and individual '?'
characters will be replaced with 'X'.
     
    
    Examples
    if (FALSE) { # \dontrun{
replaceQuestionMarks()
} # }