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pandas.DataFrame.combine_first — pandas 0.20.3 documentation

DataFrame.combine_first(other)[source]¶

Combine two DataFrame objects and default to non-null values in frame calling the method. Result index columns will be the union of the respective indexes and columns

Parameters: other : DataFrame Returns: combined : DataFrame

Examples

a’s values prioritized, use values from b to fill holes:

>>> a.combine_first(b)

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