* [ polars.Expr.dt.year ](polars.Expr.dt.year.html)
    * [ Window ](../window.html) __
      * [ polars.Expr.over ](polars.Expr.over.html)
      * [ polars.Expr.rolling ](polars.Expr.rolling.html)
  * [ Selectors ](../../selectors.html)

  * [ Functions ](../../functions.html) __
    * [ polars.from_arrow ](../../api/polars.from_arrow.html)
    * [ polars.from_dataframe ](../../api/polars.from_dataframe.html)
    * [ polars.from_dict ](../../api/polars.from_dict.html)
    * [ polars.from_dicts ](../../api/polars.from_dicts.html)
    * [ polars.from_numpy ](../../api/polars.from_numpy.html)
    * [ polars.from_pandas ](../../api/polars.from_pandas.html)
    * [ polars.from_records ](../../api/polars.from_records.html)
    * [ polars.from_repr ](../../api/polars.from_repr.html)
    * [ polars.align_frames ](../../api/polars.align_frames.html)
    * [ polars.concat ](../../api/polars.concat.html)
    * [ polars.collect_all ](../../api/polars.collect_all.html)
    * [ polars.collect_all_async ](../../api/polars.collect_all_async.html)
    * [ polars.set_random_seed ](../../api/polars.set_random_seed.html)
    * [ polars.StringCache ](../../api/polars.StringCache.html)
    * [ polars.enable_string_cache ](../../api/polars.enable_string_cache.html)
    * [ polars.disable_string_cache ](../../api/polars.disable_string_cache.html)
    * [ polars.using_string_cache ](../../api/polars.using_string_cache.html)

  * [ Data types ](../../datatypes.html) __
    * [ polars.datatypes.DataType ](../../api/polars.datatypes.DataType.html)
    * [ polars.datatypes.Decimal ](../../api/polars.datatypes.Decimal.html)
    * [ polars.datatypes.Float32 ](../../api/polars.datatypes.Float32.html)
    * [ polars.datatypes.Float64 ](../../api/polars.datatypes.Float64.html)
    * [ polars.datatypes.Int8 ](../../api/polars.datatypes.Int8.html)
    * [ polars.datatypes.Int16 ](../../api/polars.datatypes.Int16.html)
    * [ polars.datatypes.Int32 ](../../api/polars.datatypes.Int32.html)
    * [ polars.datatypes.Int64 ](../../api/polars.datatypes.Int64.html)
    * [ polars.datatypes.UInt8 ](../../api/polars.datatypes.UInt8.html)
    * [ polars.datatypes.UInt16 ](../../api/polars.datatypes.UInt16.html)
    * [ polars.datatypes.UInt32 ](../../api/polars.datatypes.UInt32.html)
    * [ polars.datatypes.UInt64 ](../../api/polars.datatypes.UInt64.html)
    * [ polars.datatypes.Date ](../../api/polars.datatypes.Date.html)
    * [ polars.datatypes.Datetime ](../../api/polars.datatypes.Datetime.html)
    * [ polars.datatypes.Duration ](../../api/polars.datatypes.Duration.html)
    * [ polars.datatypes.Time ](../../api/polars.datatypes.Time.html)
    * [ polars.datatypes.Array ](../../api/polars.datatypes.Array.html)
    * [ polars.datatypes.List ](../../api/polars.datatypes.List.html)
    * [ polars.datatypes.Struct ](../../api/polars.datatypes.Struct.html)
    * [ polars.datatypes.String ](../../api/polars.datatypes.String.html)
    * [ polars.datatypes.Categorical ](../../api/polars.datatypes.Categorical.html)
    * [ polars.datatypes.Enum ](../../api/polars.datatypes.Enum.html)
    * [ polars.datatypes.Utf8 ](../../api/polars.datatypes.Utf8.html)
    * [ polars.datatypes.Binary ](../../api/polars.datatypes.Binary.html)
    * [ polars.datatypes.Boolean ](../../api/polars.datatypes.Boolean.html)
    * [ polars.datatypes.Null ](../../api/polars.datatypes.Null.html)
    * [ polars.datatypes.Object ](../../api/polars.datatypes.Object.html)
    * [ polars.datatypes.Unknown ](../../api/polars.datatypes.Unknown.html)

  * [ Input/output ](../../io.html) __
    * [ polars.read_avro ](../../api/polars.read_avro.html)
    * [ polars.DataFrame.write_avro ](../../api/polars.DataFrame.write_avro.html)
    * [ polars.read_clipboard ](../../api/polars.read_clipboard.html)
    * [ polars.DataFrame.write_clipboard ](../../api/polars.DataFrame.write_clipboard.html)
    * [ polars.read_csv ](../../api/polars.read_csv.html)
    * [ polars.read_csv_batched ](../../api/polars.read_c