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Unstacking boolean DataFrame fills 'True' for missing values #1820

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warrenwjackson opened this issue Aug 28, 2012 · 1 comment

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warrenwjackson commented Aug 28, 2012

Is this a bug? If this is intentional, it is pretty dangerous to fill missing values with True.

>>> df = pd.DataFrame([False, False], index=pd.MultiIndex.from_arrays([['a', 'b'], ['c', 'l']]), columns=['col'])
>>> df
       col
a c  False
b l  False
>>> df.unstack()
     col
       c      l
a  False   True
b   True  False

The text was updated successfully, but these errors were encountered:

changhiskhan added a commit that referenced this issue


          BUG: unstack fills True for boolean frame #1820

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changhiskhan commented Sep 10, 2012

Unstack now converts bool dtype to object dtype

changhiskhan closed this as completed

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