pandas.merge(left, right, how='inner', on=None, left_on=None, right_on=None, left_index=False, right_index=False, sort=False, suffixes='_x', '_y', copy=True, indicator=False, validate=None)
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.merge.html
pandas.merge — pandas 1.1.4 documentation
If True, adds a column to the output DataFrame called “_merge” with information on the source of each row. The column can be given a different name by providing a string argument. The column will have a Categorical type with the value of “left_only
pandas.pydata.org
What are the exact downsides of copy=False in DataFrame.merge()?
I am a bit confused about the argument copy in DataFrame.merge() after a co-worker asked me about that. The docstring of DataFrame.merge() states: copy : boolean, default True If False, do no...
stackoverflow.com
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