polars.DataFrame.hash_rows#
- DataFrame.hash_rows( ) Series [source]#
Hash and combine the rows in this DataFrame.
The hash value is of type
UInt64
.- Parameters:
- seed
Random seed parameter. Defaults to 0.
- seed_1
Random seed parameter. Defaults to
seed
if not set.- seed_2
Random seed parameter. Defaults to
seed
if not set.- seed_3
Random seed parameter. Defaults to
seed
if not set.
Notes
This implementation of
hash_rows
does not guarantee stable results across different Polars versions. Its stability is only guaranteed within a single version.Examples
>>> df = pl.DataFrame( ... { ... "foo": [1, None, 3, 4], ... "ham": ["a", "b", None, "d"], ... } ... ) >>> df.hash_rows(seed=42) shape: (4,) Series: '' [u64] [ 10783150408545073287 1438741209321515184 10047419486152048166 2047317070637311557 ]