Struct polars::datatypes::ObjectType

pub struct ObjectType<T>(_);

Trait Implementations

impl<T> ChunkExpandAtIndex<ObjectType<T>> for ChunkedArray<ObjectType<T>>

pub fn expand_at_index(
    &self,
    _index: usize,
    _length: usize
) -> ChunkedArray<ObjectType<T>>

Create a new ChunkedArray filled with values at that index.

impl<T> ChunkFillNullValue<ObjectType<T>> for ChunkedArray<ObjectType<T>>

pub fn fill_null_with_values(
    &self,
    _value: ObjectType<T>
) -> Result<ChunkedArray<ObjectType<T>>, PolarsError>

Replace None values with a give value T.

impl<T> ChunkFilter<ObjectType<T>> for ChunkedArray<ObjectType<T>> where
    T: PolarsObject, 

pub fn filter(
    &self,
    filter: &ChunkedArray<BooleanType>
) -> Result<ChunkedArray<ObjectType<T>>, PolarsError> where
    ChunkedArray<ObjectType<T>>: Sized, 

Filter values in the ChunkedArray with a boolean mask.

impl<T> ChunkReverse<ObjectType<T>> for ChunkedArray<ObjectType<T>> where
    T: PolarsObject, 

pub fn reverse(&self) -> ChunkedArray<ObjectType<T>>

Return a reversed version of this array.

impl<T> ChunkShift<ObjectType<T>> for ChunkedArray<ObjectType<T>>

pub fn shift(&self, periods: i64) -> ChunkedArray<ObjectType<T>>

impl<T> ChunkShiftFill<ObjectType<T>, Option<ObjectType<T>>> for ChunkedArray<ObjectType<T>>

pub fn shift_and_fill(
    &self,
    _periods: i64,
    _fill_value: Option<ObjectType<T>>
) -> ChunkedArray<ObjectType<T>>

Shift the values by a given period and fill the parts that will be empty due to this operation with fill_value.

impl<T> ChunkTakeEvery<ObjectType<T>> for ChunkedArray<ObjectType<T>>

pub fn take_every(&self, _n: usize) -> ChunkedArray<ObjectType<T>>

Traverse and collect every nth element in a new array.

impl<T> ChunkUnique<ObjectType<T>> for ChunkedArray<ObjectType<T>>

pub fn unique(&self) -> Result<ChunkedArray<ObjectType<T>>, PolarsError>

Get unique values of a ChunkedArray

pub fn arg_unique(&self) -> Result<ChunkedArray<UInt32Type>, PolarsError>

Get first index of the unique values in a ChunkedArray. This Vec is sorted.

fn n_unique(&self) -> Result<usize, PolarsError>

Number of unique values in the ChunkedArray

fn is_unique(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>

Get a mask of all the unique values.

fn is_duplicated(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>

Get a mask of all the duplicated values.

fn value_counts(&self) -> Result<DataFrame, PolarsError>

Count the unique values.

fn mode(&self) -> Result<ChunkedArray<T>, PolarsError>

The most occurring value(s). Can return multiple Values

impl<T> ChunkZip<ObjectType<T>> for ChunkedArray<ObjectType<T>> where
    T: PolarsObject, 

pub fn zip_with(
    &self,
    mask: &ChunkedArray<BooleanType>,
    other: &ChunkedArray<ObjectType<T>>
) -> Result<ChunkedArray<ObjectType<T>>, PolarsError>

Create a new ChunkedArray with values from self where the mask evaluates true and values from other where the mask evaluates false

impl<T> NewChunkedArray<ObjectType<T>, T> for ChunkedArray<ObjectType<T>> where
    T: PolarsObject, 

pub fn new_from_iter(
    name: &str,
    it: impl Iterator<Item = T>
) -> ChunkedArray<ObjectType<T>>

Create a new ChunkedArray from an iterator.

pub fn new_from_slice(name: &str, v: &[T]) -> ChunkedArray<ObjectType<T>>

pub fn new_from_opt_slice(
    name: &str,
    opt_v: &[Option<T>]
) -> ChunkedArray<ObjectType<T>>

pub fn new_from_opt_iter(
    name: &str,
    it: impl Iterator<Item = Option<T>>
) -> ChunkedArray<ObjectType<T>>

Create a new ChunkedArray from an iterator.

impl<T> PolarsDataType for ObjectType<T> where
    T: PolarsObject, 

pub fn get_dtype() -> DataType