def _read_dataframe(filename):
<EOL>import pandas<EOL>start = time.time()<EOL>log.debug("<STR_LIT>", filename)<EOL>data = pandas.read_table(filename, usecols=[<NUM_LIT:0>, <NUM_LIT:1>, <NUM_LIT:3>], names=['<STR_LIT:user>', '<STR_LIT>', '<STR_LIT>'])<EOL>data['<STR_LIT:user>'] = data['<STR_LIT:user>'].astype("<STR_LIT>")<EOL>data['<STR_LIT>'] = data['<STR_LIT>'].astype("<STR_LIT>")<EOL>log.debug("<STR_LIT>", time.time() - start)<EOL>return data<EOL>
Reads the original dataset TSV as a pandas dataframe