Struct InMemoryDataset 

pub struct InMemoryDataset { /* private fields */ }

A concrete implementation of Dataset trait for in-memory datasets

Implementations

impl InMemoryDataset

pub fn new(features: Array2<f64>, targets: Option<Array1<f64>>) -> Self

Create a new in-memory dataset

pub fn with_metadata( features: Array2<f64>, targets: Option<Array1<f64>>, metadata: HashMap<String, String>, ) -> Self

Create with metadata

pub fn add_metadata(&mut self, key: String, value: String)

Add metadata entry

Trait Implementations

impl Clone for InMemoryDataset

fn clone(&self) -> InMemoryDataset

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Dataset for InMemoryDataset

fn n_samples(&self) -> usize

Get the number of samples in the dataset

fn n_features(&self) -> usize

Get the number of features in the dataset

fn features(&self) -> DatasetTraitResult<ArrayView2<'_, f64>>

Get features as an array view

fn sample(&self, index: usize) -> DatasetTraitResult<ArrayView1<'_, f64>>

Get a specific sample (row) by index

fn has_targets(&self) -> bool

Check if the dataset has target values

fn targets(&self) -> DatasetTraitResult<Option<ArrayView1<'_, f64>>>

Get targets as an array view (if available)

fn metadata(&self) -> HashMap<String, String>

Get dataset metadata

fn shape(&self) -> (usize, usize)

Get the shape of the dataset as (n_samples, n_features)

impl Debug for InMemoryDataset

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl MutableDataset for InMemoryDataset

fn set_sample( &mut self, index: usize, sample: ArrayView1<'_, f64>, ) -> DatasetTraitResult<()>

Set a specific sample

fn set_targets( &mut self, targets: ArrayView1<'_, f64>, ) -> DatasetTraitResult<()>

Set targets (if supported)

fn add_sample( &mut self, sample: ArrayView1<'_, f64>, _target: Option<f64>, ) -> DatasetTraitResult<()>

Add a new sample to the dataset

fn remove_sample(&mut self, index: usize) -> DatasetTraitResult<()>

Remove a sample from the dataset