Struct polars::datatypes::StructChunked

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pub struct StructChunked { /* private fields */ }

Expand description

This is logical type StructChunked that dispatches most logic to the fields implementations

Different from StructArray, this type does not have its own validity. That means some operations will be a bit less efficient because we need to check validity of all fields. However this does save a lot of code and compile times.

Implementations

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impl StructChunked

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pub fn new(name: &str, fields: &[Series ]) -> Result<StructChunked, PolarsError>

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pub fn field_by_name(&self, name: &str) -> Result<Series, PolarsError>

Get access to one of this [StructChunked]’s fields

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pub fn len(&self) -> usize

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pub fn is_empty(&self) -> bool

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pub fn ref_field(&self) -> &Field

Get a reference to the Field of array.

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pub fn name(&self) -> &String

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pub fn fields(&self) -> &[Series ]

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pub fn fields_mut(&mut self) -> &mut Vec<Series, Global>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

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pub fn rename(&mut self, name: &str)

Trait Implementations

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impl Clone for StructChunked

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fn clone(&self) -> StructChunked

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl From<StructChunked> for DataFrame

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fn from(ca: StructChunked) -> DataFrame

Performs the conversion.

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fn get_any_value(&self, i: usize) -> AnyValue<'_>

Gets AnyValue from LogicalType

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fn dtype(&self) -> &DataType

Get data type of ChunkedArray.

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fn cast(&self, dtype: &DataType) -> Result<Series, PolarsError>

Auto Trait Implementations

impl !RefUnwindSafe for StructChunked

impl Send for StructChunked

impl Sync for StructChunked

impl Unpin for StructChunked

impl !UnwindSafe for StructChunked

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct polars::datatypes::StructChunked

Implementations

impl StructChunked

pub fn new(name: &str, fields: &[Series]) -> Result<StructChunked, PolarsError>

pub fn field_by_name(&self, name: &str) -> Result<Series, PolarsError>

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn ref_field(&self) -> &Field

pub fn name(&self) -> &String

pub fn fields(&self) -> &[Series]

pub fn fields_mut(&mut self) -> &mut Vec<Series, Global>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator,

pub fn rename(&mut self, name: &str)

Trait Implementations

impl Clone for StructChunked

fn clone(&self) -> StructChunked

fn clone_from(&mut self, source: &Self)

impl From<StructChunked> for DataFrame

fn from(ca: StructChunked) -> DataFrame

impl IntoSeries for StructChunked

fn into_series(self) -> Series

fn is_series() -> bool

impl LogicalType for StructChunked

fn get_any_value(&self, i: usize) -> AnyValue<'_>

fn dtype(&self) -> &DataType

fn cast(&self, dtype: &DataType) -> Result<Series, PolarsError>

Auto Trait Implementations

impl !RefUnwindSafe for StructChunked

impl Send for StructChunked

impl Sync for StructChunked

impl Unpin for StructChunked

impl !UnwindSafe for StructChunked

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize

type Init = T

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

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

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

unsafe fn drop(ptr: usize)

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

pub fn new(name: &str, fields: &[Series ]) -> Result<StructChunked, PolarsError>

pub fn fields(&self) -> &[Series ]

pub fn fields_mut(&mut self) -> &mut Vec<Series, Global>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,