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]
fn unique(&self) -> Result<ChunkedArray<T>>[src]Get unique values of a ChunkedArray
fn arg_unique(&self) -> Result<UInt32Chunked>[src]
fn arg_unique(&self) -> Result<UInt32Chunked>[src]Get first index of the unique values in a ChunkedArray.
This Vec is sorted.
Provided methods
fn is_unique(&self) -> Result<BooleanChunked>[src]
fn is_unique(&self) -> Result<BooleanChunked>[src]Get a mask of all the unique values.
fn is_duplicated(&self) -> Result<BooleanChunked>[src]
fn is_duplicated(&self) -> Result<BooleanChunked>[src]Get a mask of all the duplicated values.
fn value_counts(&self) -> Result<DataFrame>[src]
fn value_counts(&self) -> Result<DataFrame>[src]Count the unique values.
Implementors
impl<T> ChunkUnique<T> for ChunkedArray<T> where
T: PolarsIntegerType,
T::Native: Hash + Eq + NumCast,
ChunkedArray<T>: ChunkOps + IntoSeries, [src]
impl<T> ChunkUnique<T> for ChunkedArray<T> where
T: PolarsIntegerType,
T::Native: Hash + Eq + NumCast,
ChunkedArray<T>: ChunkOps + IntoSeries, [src]