pandas.Series.combine_first
-
Series.combine_first(other)[source] -
Combine Series values, choosing the calling Series’s values first. Result index will be the union of the two indexes
Parameters: other : Series Returns: y : Series
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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.20.3/generated/pandas.Series.combine_first.html