Cross-correlation Matrix

>>> from techminer2.correlation_matrix import cross_correlation_matrix
>>> cross_correlation_matrix(
...     #
...     # FUNCTION PARAMS:
...     rows_and_columns='authors',
...     cross_with='countries',
...     method="pearson",
...     #
...     # ITEM PARAMS:
...     top_n=10,
...     occ_range=(None, None),
...     gc_range=(None, None),
...     custom_terms=None,
...     #
...     # DATABASE PARAMS:
...     root_dir="example/",
...     database="main",
...     year_filter=(None, None),
...     cited_by_filter=(None, None),
... ).round(3)
                      Jagtiani J. 3:0317  ...  Zavolokina L. 2:0181
Jagtiani J. 3:0317                 1.000  ...                   0.0
Gomber P. 2:1065                   0.200  ...                   0.0
Hornuf L. 2:0358                   0.000  ...                   0.0
Gai K. 2:0323                      0.632  ...                   0.0
Qiu M. 2:0323                      0.632  ...                   0.0
Sun X./3 2:0323                    0.632  ...                   0.0
Lemieux C. 2:0253                  1.000  ...                   0.0
Dolata M. 2:0181                   0.000  ...                   1.0
Schwabe G. 2:0181                  0.000  ...                   1.0
Zavolokina L. 2:0181               0.000  ...                   1.0

[10 rows x 10 columns]