Struct polars::prelude::ArrayNameSpace

pub struct ArrayNameSpace(pub Expr);
Available on crate feature lazy only.
Expand description

Specialized expressions for Series of DataType::Array.

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§0: Expr

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impl ArrayNameSpace

pub fn max(self) -> Expr

Compute the maximum of the items in every subarray.

pub fn min(self) -> Expr

Compute the minimum of the items in every subarray.

pub fn sum(self) -> Expr

Compute the sum of the items in every subarray.

pub fn std(self, ddof: u8) -> Expr

Compute the std of the items in every subarray.

pub fn var(self, ddof: u8) -> Expr

Compute the var of the items in every subarray.

pub fn median(self) -> Expr

Compute the median of the items in every subarray.

pub fn unique(self) -> Expr

Keep only the unique values in every sub-array.

pub fn unique_stable(self) -> Expr

Keep only the unique values in every sub-array.

pub fn n_unique(self) -> Expr

pub fn to_list(self) -> Expr

Cast the Array column to List column with the same inner data type.

pub fn sort(self, options: SortOptions) -> Expr

pub fn reverse(self) -> Expr

pub fn arg_min(self) -> Expr

pub fn arg_max(self) -> Expr

pub fn get(self, index: Expr, null_on_oob: bool) -> Expr

Get items in every sub-array by index.

pub fn join(self, separator: Expr, ignore_nulls: bool) -> Expr

Join all string items in a sub-array and place a separator between them.

§Error

Raise if inner type of array is not DataType::String.

pub fn contains<E>(self, other: E) -> Expr
where E: Into<Expr>,

Available on crate feature is_in only.

Check if the sub-array contains specific element

pub fn shift(self, n: Expr) -> Expr

Shift every sub-array.

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Calls U::from(self).

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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impl<V, T> VZip<V> for T
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fn vzip(self) -> V