Trait polars_core::chunked_array::ops::ChunkUnique[−][src]

pub trait ChunkUnique<T> {
    fn unique(&self) -> Result<ChunkedArray<T>>;
    fn arg_unique(&self) -> Result<UInt32Chunked>;

    fn n_unique(&self) -> Result<usize> { ... }
    fn is_unique(&self) -> Result<BooleanChunked> { ... }
    fn is_duplicated(&self) -> Result<BooleanChunked> { ... }
    fn value_counts(&self) -> Result<DataFrame> { ... }
}

Expand description

Get unique values in a ChunkedArray

Required methods

`fn unique(&self) -> Result<ChunkedArray<T>>`[src]

Get unique values of a ChunkedArray

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

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

Provided methods

`fn n_unique(&self) -> Result<usize>`[src]

Number of unique values in the ChunkedArray

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

Get a mask of all the unique values.

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

Get a mask of all the duplicated values.

`fn value_counts(&self) -> Result<DataFrame>`[src]

Count the unique values.

Implementors

`impl ChunkUnique<BooleanType> for BooleanChunked`[src]

`fn unique(&self) -> Result<Self>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`impl ChunkUnique<CategoricalType> for CategoricalChunked`[src]

`fn unique(&self) -> Result<Self>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`fn value_counts(&self) -> Result<DataFrame>`[src]

`impl ChunkUnique<Float32Type> for Float32Chunked`[src]

`fn unique(&self) -> Result<ChunkedArray<Float32Type>>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`fn value_counts(&self) -> Result<DataFrame>`[src]

`impl ChunkUnique<Float64Type> for Float64Chunked`[src]

`fn unique(&self) -> Result<ChunkedArray<Float64Type>>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`fn value_counts(&self) -> Result<DataFrame>`[src]

`impl ChunkUnique<ListType> for ListChunked`[src]

`fn unique(&self) -> Result<ChunkedArray<ListType>>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`impl ChunkUnique<Utf8Type> for Utf8Chunked`[src]

`fn unique(&self) -> Result<Self>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`fn value_counts(&self) -> Result<DataFrame>`[src]

`impl<T> ChunkUnique<ObjectType<T>> for ObjectChunked<T>`[src]

`fn unique(&self) -> Result<ChunkedArray<ObjectType<T>>>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`impl<T> ChunkUnique<T> for ChunkedArray<T> where T: PolarsIntegerType, T::Native: Hash + Eq + NumCast, ChunkedArray<T>: ChunkOps + IntoSeries,` [src]

`fn unique(&self) -> Result<Self>`[src]

`fn arg_unique(&self) -> Result<UInt32Chunked>`[src]

`fn is_unique(&self) -> Result<BooleanChunked>`[src]

`fn is_duplicated(&self) -> Result<BooleanChunked>`[src]

`fn value_counts(&self) -> Result<DataFrame>`[src]