Categoricals with NaNs · Issue #3678 · pandas-dev/pandas (original) (raw)

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Description

Not sure how to handle this yet. It looks like NaNs do not become a level. Should they? Maybe so. Also describe fails if NaNs are present.

pandas.Categorical([np.nan, np.nan, 1, 1, 1, 2, 3, 4, 5, 5, 4, 3, 3]).describe()