>>> from techminer2.metrics import tfidf
>>> tfidf(
... #
... # TF PARAMS:
... field='author_keywords',
... is_binary=False,
... cooc_within= 1,
... #
... # ITEM FILTERS:
... top_n=50,
... occ_range=(None, None),
... gc_range=(None, None),
... custom_items=None,
... #
... # TF-IDF parameters:
... norm= None,
... use_idf=False,
... smooth_idf=False,
... sublinear_tf=False,
... #
... # DATABASE PARAMS:
... root_dir="example/",
... database="main",
... year_filter=(None, None),
... cited_by_filter=(None, None),
... ).head()
author_keywords FINTECH 31:5168 ... BIG_DATA 01:0238
article ...
Anagnostopoulos I., 2018, J ECON BUS, V100, P7 1 ... 0
Anshari M., 2019, ENERGY PROCEDIA, V156, P234 0 ... 0
Buchak G., 2018, J FINANC ECON, V130, P453 1 ... 0
Cai C.W., 2018, ACCOUNT FINANC, V58, P965 1 ... 0
Chen L., 2016, CHINA ECON J, V9, P225 1 ... 0
[5 rows x 50 columns]