Struct Sample 

pub struct Sample {
    pub features: Vec<f64>,
    pub feature_shape: Vec<usize>,
    pub target: Vec<f64>,
    pub target_shape: Vec<usize>,
}

A single sample: a pair of (input features, label/target).

Both are stored as Vec<f64> with their associated shapes so they can be batched into tensors later.

Fields

features: Vec<f64>

Input feature vector (flattened).

feature_shape: Vec<usize>

Shape of the feature tensor (e.g. [784] for MNIST, [3,32,32] for CIFAR).

target: Vec<f64>

Target / label value(s) (flattened). For classification this is typically a single-element vec holding the class index as f64.

target_shape: Vec<usize>

Shape of the target tensor (e.g. [1] for a class index, [10] for one-hot).

Trait Implementations

impl Clone for Sample

fn clone(&self) -> Sample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Sample

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

Formats the value using the given formatter.