Trait polars_core::chunked_array::ops::ChunkCast

pub trait ChunkCast {
    fn cast<N>(&self) -> Result<ChunkedArray<N>>
    where
        N: PolarsDataType;
    fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>;
}

Cast ChunkedArray<T> to ChunkedArray<N>

Required methods

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

Cast ChunkedArray<T> to ChunkedArray<N>

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>

Implementors

impl ChunkCast for BooleanChunked

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>

impl ChunkCast for CategoricalChunked

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>

impl ChunkCast for ListChunked

We cannot cast anything to or from List/LargeList So this implementation casts the inner tyupe

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>

impl ChunkCast for Utf8Chunked

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>

impl<T> ChunkCast for ChunkedArray<T> where
    T: PolarsNumericType,
    T::Native: NumCast, 

fn cast<N>(&self) -> Result<ChunkedArray<N>> where
    N: PolarsDataType, 

fn cast_with_dtype(&self, data_type: &DataType) -> Result<Series>