DiD Event Study Code in Python Interactions in the Wrong Order about lost-stats.github.io HOT 4 OPEN

Hmm, shoot! Could you do a PR for this?

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I haven't figured out how to fix it, Nick! Any ideas?

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should be
res = res.reindex(range(res.index.min(), res.index.max()+1)).fillna(0) when reindex the results.

Btw, the 'time_to_treat' has reverse sign: I suppose that '_nfd' is the treatment year, it shoudl be

    df['year'].sub(df['_nfd'])
        # missing values for _nfd implies no treatment
        .fillna(0)
        # so we don't have decimals in our factor names
        .astype('int'))```

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