Struct SparseAccessor 

pub struct SparseAccessor<'a> { /* private fields */ }

Accessor for sparse operations on a Series.

Created by Series::sparse(). Provides the pandas Series.sparse namespace over the current dense-backed sparse dtype descriptor.

Implementations

impl SparseAccessor<'_>

pub fn value_dtype(&self) -> DType

Return the logical sparse value dtype.

Matches pd.Series.sparse.dtype.subtype.

pub fn fill_value(&self) -> &Scalar

Return the sparse fill value.

Matches pd.Series.sparse.fill_value.

pub fn npoints(&self) -> usize

Count stored non-fill values.

Matches the SparseArray.sp_values cardinality used by pandas density.

pub fn sp_values(&self) -> Vec<Scalar>

Return the non-fill values as a Vec.

Matches pd.Series.sparse.sp_values (returns underlying non-fill data).

pub fn sp_index(&self) -> Vec<usize>

Return the indices of non-fill values.

Returns position indices (0-based) where values differ from fill_value.

pub fn density(&self) -> f64

Return non-fill density as npoints / len.

Matches pd.Series.sparse.density.

pub fn to_dense(&self) -> Series

Materialize this sparse Series as a dense Series.

Matches pd.Series.sparse.to_dense().