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DOC: correct example use of nth dropna keyword #17641

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Sep 23, 2017
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DOC: correct example use of nth dropna keyword #17641

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4 changes: 2 additions & 2 deletions doc/source/groupby.rst
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Expand Up @@ -1060,7 +1060,7 @@ To select from a DataFrame or Series the nth item, use the nth method. This is a
g.nth(-1)
g.nth(1)

If you want to select the nth not-null item, use the ``dropna`` kwarg. For a DataFrame this should be either ``'any'`` or ``'all'`` just like you would pass to dropna, for a Series this just needs to be truthy.
If you want to select the nth not-null item, use the ``dropna`` kwarg. For a DataFrame this should be either ``'any'`` or ``'all'`` just like you would pass to dropna:

.. ipython:: python

Expand All @@ -1072,7 +1072,7 @@ If you want to select the nth not-null item, use the ``dropna`` kwarg. For a Dat
g.nth(-1, dropna='any') # NaNs denote group exhausted when using dropna
g.last()

g.B.nth(0, dropna=True)
g.B.nth(0, dropna='all')

As with other methods, passing ``as_index=False``, will achieve a filtration, which returns the grouped row.

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