Trait polars::chunked_array::ops::ChunkFilter

pub trait ChunkFilter<T> {
    pub fn filter(&self, filter: &BooleanChunked) -> Result<ChunkedArray<T>>
    where
        Self: Sized;
}

Filter values by a boolean mask.

Required methods

pub fn filter(&self, filter: &BooleanChunked) -> Result<ChunkedArray<T>> where
    Self: Sized, 

Filter values in the ChunkedArray with a boolean mask.

let array = Int32Chunked::new_from_slice("array", &[1, 2, 3]);
let mask = BooleanChunked::new_from_slice("mask", &[true, false, true]);

let filtered = array.filter(&mask).unwrap();
assert_eq!(Vec::from(&filtered), [Some(1), Some(3)])

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Implementors

impl ChunkFilter<BooleanType> for BooleanChunked

pub fn filter(
    &self,
    filter: &BooleanChunked
) -> Result<ChunkedArray<BooleanType>>

impl ChunkFilter<ListType> for ListChunked

pub fn filter(&self, filter: &BooleanChunked) -> Result<ListChunked>

impl ChunkFilter<Utf8Type> for Utf8Chunked

pub fn filter(&self, filter: &BooleanChunked) -> Result<ChunkedArray<Utf8Type>>

impl<T> ChunkFilter<ObjectType<T>> for ObjectChunked<T> where
    T: 'static + Debug + Clone + Send + Sync + Default, 

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

impl<T> ChunkFilter<T> for ChunkedArray<T> where
    T: PolarsNumericType,
    ChunkedArray<T>: ChunkOps, 

pub fn filter(&self, filter: &BooleanChunked) -> Result<ChunkedArray<T>>

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