def getClassifications(networkDataFile):
    """
    Returns the classifications at the indices where the data sequences
    reset.
    @param networkDataFile  (str)     Path to file in the FileRecordStream
                                      format
    @return                 (list)    list of string versions of the
                                      classifications
    Sample output: ["0 1", "1", "1 2 3"]
    """
    try:
      with open(networkDataFile) as f:
        reader = csv.reader(f)
        next(reader, None)
        next(reader, None)
        specials = next(reader)
        resetIdx = specials.index("R")
        classIdx = specials.index("C")

        classifications = []
        for line in reader:
          if int(line[resetIdx]) == 1:
            classifications.append(line[classIdx])
        return classifications

    except IOError as e:
      print "Could not open the file {}.".format(networkDataFile)
      raise e
Returns the classifications at the indices where the data sequences
    reset.
    @param networkDataFile  (str)     Path to file in the FileRecordStream
                                      format
    @return                 (list)    list of string versions of the
                                      classifications
    Sample output: ["0 1", "1", "1 2 3"]