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ShuffledDataset

burn_core::data::dataset::transform

Struct ShuffledDataset 

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pub struct ShuffledDataset<D, I>
where
    D: Dataset<I>,
    I: Clone + Send + Sync,
{ /* private fields */ }
Available on crate features dataset and std only.
Expand description

A Shuffled a dataset.

This is a thin wrapper around a SelectionDataset which selects and shuffles the full indices of the original dataset.

Consider using SelectionDataset if you are only interested in shuffling mechanisms.

Consider using sampler dataset if you want a probability distribution which is computed lazily.

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impl<D, I> ShuffledDataset<D, I>
where D: Dataset<I>, I: Clone + Send + Sync,

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pub fn new<R>(dataset: D, rng_source: R) -> ShuffledDataset<D, I>
where R: Into<RngSource>,

Creates a new selection dataset with shuffled indices.

This is a thin wrapper around SelectionDataset::new_shuffled.

§Arguments
  • dataset - The original dataset to select from.
  • rng_source - The source of the random number generator.
§Returns

A new ShuffledDataset.

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pub fn with_seed(dataset: D, seed: u64) -> ShuffledDataset<D, I>

👎Deprecated since 0.19.0:

Use new(dataset, seed) instead`

Creates a new selection dataset with shuffled indices using a fixed seed.

This is a thin wrapper around SelectionDataset::new_shuffled_with_seed.

§Arguments
  • dataset - The original dataset to select from.
  • seed - A fixed seed for the random number generator.
§Returns

A new ShuffledDataset.

Trait Implementations§

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impl<D, I> Dataset<I> for ShuffledDataset<D, I>
where D: Dataset<I>, I: Clone + Send + Sync,

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fn get(&self, index: usize) -> Result<I, DatasetError>

Gets the item at the given index. Read more
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fn len(&self) -> usize

Gets the number of items in the dataset.
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fn get_many(&self, indexes: Vec<usize>) -> Result<Vec<I>, E>

Gets the items at given indexes Read more
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fn is_empty(&self) -> bool

Checks if the dataset is empty.
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fn iter(&self) -> DatasetIterator<'_, I, E> ⓘ
where Self: Sized,

Returns an iterator over the dataset.

Auto Trait Implementations§

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impl<D, I> Freeze for ShuffledDataset<D, I>
where SelectionDataset<D, I>: Freeze,

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impl<D, I> RefUnwindSafe for ShuffledDataset<D, I>
where SelectionDataset<D, I>: RefUnwindSafe,

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impl<D, I> Send for ShuffledDataset<D, I>
where SelectionDataset<D, I>: Send,

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impl<D, I> Sync for ShuffledDataset<D, I>
where SelectionDataset<D, I>: Sync,

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impl<D, I> Unpin for ShuffledDataset<D, I>
where SelectionDataset<D, I>: Unpin,

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impl<D, I> UnsafeUnpin for ShuffledDataset<D, I>
where SelectionDataset<D, I>: UnsafeUnpin,

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impl<D, I> UnwindSafe for ShuffledDataset<D, I>
where SelectionDataset<D, I>: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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impl<I, T> Window<I> for T
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fn window( &self, current: usize, size: NonZero<usize>, ) -> Result<Option<Vec<I>>, DatasetError>

Creates a window of a collection. Read more
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impl<I, T> Windows<I> for T
where T: Dataset<I>,

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fn windows(&self, size: usize) -> WindowsIterator<'_, I> ⓘ

Is empty if the Dataset is shorter than size.

§Panics

Panics if size is 0.

§Examples
use crate::burn_dataset::{
   transform::{Windows, WindowsDataset},
   Dataset, InMemDataset,
};

let items = [1, 2, 3, 4].to_vec();
let dataset = InMemDataset::new(items.clone());

for window in dataset.windows(2) {
 // window is a Result<Vec<I>, DatasetError>
}
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