Created
April 5, 2017 16:09
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STATA fillin in pandas
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| def fillin(df, entities): | |
| """STATA style 'fillin', makes sure all combinations of entities in the | |
| index are in the dataset.""" | |
| return df\ | |
| .set_index(entities)\ | |
| .reindex(pd.MultiIndex.from_product(df.index.levels, names=df.index.names)) |
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