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  * __
  * [ List ](../list.html)
  * polars.Serie... 

#  polars.Series.list.gather_every  #

Series.list.  gather_every  (

     _ n  :  [ int  ](https://docs.python.org/3/library/functions.html#int "\(in Python v3.12\)") |  IntoExprColumn  _ , 
     _ offset  :  [ int  ](https://docs.python.org/3/library/functions.html#int "\(in Python v3.12\)") |  IntoExprColumn  =  0  _ , 
)  →  Series  [ [source]  ](https://github.com/pola-
rs/polars/blob/py-0.20.23/py-polars/polars/series/list.py#L467-L491) #

    

Take every n-th value start from offset in sublists.

Parameters  :

    

**n**

    

Gather every n-th element.

**offset**

    

Starting index.

Examples

    
    
    >>> s = pl.Series("a", [[1, 2, 3], [], [6, 7, 8, 9]])
    >>> s.list.gather_every(2, offset=1)
    shape: (3,)
    Series: 'a' [list[i64]]
    [
        [2]
        []
        [7, 9]
    ]
    

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  * ` Series.list.gather_every()  `

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