Node Degree Frame

>>> from techminer2.packages.networks.citation.countries  import NodeDegreeDataFrame
>>> (
...     NodeDegreeDataFrame()
...     #
...     # UNIT OF ANALYSIS:
...     .having_terms_in_top(30)
...     .having_citation_threshold(0)
...     .having_occurrence_threshold(2)
...     .having_terms_in(None)
...     #
...     # DATABASE:
...     .where_root_directory_is("example/")
...     .where_database_is("main")
...     .where_record_years_range_is(None, None)
...     .where_record_citations_range_is(None, None)
...     .where_records_match(None)
...     #
...     .run()
... ).head()
   Node                   Name  Degree
0     0        Germany 07:1814      13
1     1          China 08:1085      12
2     2  United States 16:3189       9
3     3      Singapore 01:0576       8
4     4    South Korea 06:1192       7