print("Usage : generation_idf.py <fichier_docs.csv> <fichier_query.csv> <csv_path.csv> <sort_criteria> \n where sort_criteria = 'query_freq2' or 'idf' or 'docs_freq' or 'alpha' or 'query_freq2/docs_freq'")
print("Usage : generation_idf.py <fichier_docs.csv> <fichier_query.csv> <out_path.csv> <sort_criteria> \n where sort_criteria = 'query_freq2' or 'idf' or 'docs_freq' or 'alpha' or 'query_freq2/docs_freq'")