remove # in front of feature_id for combined_table

Author: yinshiyi

src/stats.py

@@ -60,7 +60,7 @@ def combine_table(input_data, output, get_file_name, output_file_name, column_na
     for sample in input_data.samples[1:]:
         combined_table = pd.merge(combined_table,
                                   transform_counts(get_file_name(sample), sample.prefix, column_name, full),
-                                  on='#feature_id', how='outer')
+                                  on='feature_id', how='outer')
 
     combined_table.to_csv(os.path.join(output, output_file_name), sep='\t', index=False)