Trait polars::chunked_array::object::ChunkUnique [−][src]
pub trait ChunkUnique<T> {
fn unique(&self) -> Result<ChunkedArray<T>, PolarsError>;
fn arg_unique(&self) -> Result<ChunkedArray<UInt32Type>, PolarsError>;
fn n_unique(&self) -> Result<usize, PolarsError> { ... }
fn is_unique(&self) -> Result<ChunkedArray<BooleanType>, PolarsError> { ... }
fn is_duplicated(&self) -> Result<ChunkedArray<BooleanType>, PolarsError> { ... }
fn value_counts(&self) -> Result<DataFrame, PolarsError> { ... }
fn mode(&self) -> Result<ChunkedArray<T>, PolarsError> { ... }
}Expand description
Get unique values in a ChunkedArray
Required methods
fn unique(&self) -> Result<ChunkedArray<T>, PolarsError>
fn unique(&self) -> Result<ChunkedArray<T>, PolarsError>
Get unique values of a ChunkedArray
fn arg_unique(&self) -> Result<ChunkedArray<UInt32Type>, PolarsError>
fn arg_unique(&self) -> Result<ChunkedArray<UInt32Type>, PolarsError>
Get first index of the unique values in a ChunkedArray.
This Vec is sorted.
Provided methods
fn n_unique(&self) -> Result<usize, PolarsError>
fn n_unique(&self) -> Result<usize, PolarsError>
Number of unique values in the ChunkedArray
fn is_unique(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>
fn is_unique(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>
Get a mask of all the unique values.
fn is_duplicated(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>
fn is_duplicated(&self) -> Result<ChunkedArray<BooleanType>, PolarsError>
Get a mask of all the duplicated values.
fn value_counts(&self) -> Result<DataFrame, PolarsError>
fn value_counts(&self) -> Result<DataFrame, PolarsError>
Count the unique values.
fn mode(&self) -> Result<ChunkedArray<T>, PolarsError>
fn mode(&self) -> Result<ChunkedArray<T>, PolarsError>
The most occurring value(s). Can return multiple Values