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39 def _drop_col(self, df): 40 ''' 41 Drops last column, which was added in the parsing procedure due to a 42 trailing white space for each sample in the text file 43 Arguments: 44 df: pandas dataframe 45 Return: 46 df: original df with last column dropped 47 ''' 48 return df.drop(df.columns[-1], axis=1)
78 def _clean_column(self, column): 79 if not isinstance(column, (int, str, unicode)): 80 raise ValueError('{} is not a valid column'.format(column)) 81 return column in self.df.columns