With the following statement:
rules = association_rules(frequent_itemsets, metric="lift", min_threshold=1.2)
I get a data frame of rules in the format:
frozenset({'Co_Apples'})
But I need to extract a Co_Apples as a string.
How can I do that?
rules["antecedents"] = rules["antecedents"].apply(lambda x: ', '.join(list(x))).astype("unicode")
It is work for me. Thanks Frank Herfert save my day!
You can use the following code to get a string from frozenset type columns and then cast the string to unicode.
rules["antecedents"] = rules["antecedents"].apply(lambda x: list(x)[0]).astype("unicode")
rules["consequents"] = rules["consequents"].apply(lambda x: list(x)[0]).astype("unicode")