Re: [I] Wrong example of `Struct Layout` [arrow-site]

["amoeba (via GitHub)" <gi...@apache.org>]

amoeba commented on issue #546:
URL: https://github.com/apache/arrow-site/issues/546#issuecomment-2400938854

   Hi @doki23, thanks for filing an issue. It looks like you figured out what's going on in the example and the principle it's trying to show. In case it helps at all, here's PyArrow code that shows the same idea:
   
   ```python
   In [1]: import pyarrow as pa
      ...:
   
   In [2]: arr = pa.StructArray.from_arrays(
      ...:     [['joe', None, 'alice', 'mark'], [1, 2, None, 4]],
      ...:     fields=[('a', pa.utf8()), ('b', pa.int64())],
      ...:     mask=pa.array([False, False, True, False], pa.bool_())
      ...: )
   
   In [3]: arr.to_pandas()
   Out[3]:
   0     {'a': 'joe', 'b': 1.0}
   1      {'a': None, 'b': 2.0}
   2                       None
   3    {'a': 'mark', 'b': 4.0}
   dtype: object
   ```


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