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MapperDataset

burn::data::dataset::transform

Struct MapperDataset 

pub struct MapperDataset<D, M, I> { /* private fields */ }
Expand description

Dataset mapping each element in an inner dataset to another element type lazily.

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impl<D, M, I> MapperDataset<D, M, I>

pub fn new(dataset: D, mapper: M) -> MapperDataset<D, M, I>

Constructs a new MapperDataset.

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impl<D, M, I, O, E> Dataset<O, E> for MapperDataset<D, M, I>
where D: Dataset<I, E>, M: Mapper<I, O> + Send + Sync, I: Send + Sync, O: Send + Sync, E: Error + Send + Sync + 'static,

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fn get(&self, index: usize) -> Result<O, E>

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, M, I> Freeze for MapperDataset<D, M, I>
where D: Freeze, M: Freeze,

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impl<D, M, I> RefUnwindSafe for MapperDataset<D, M, I>
where D: RefUnwindSafe, M: RefUnwindSafe, I: RefUnwindSafe,

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impl<D, M, I> Send for MapperDataset<D, M, I>
where D: Send, M: Send, I: Send,

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impl<D, M, I> Sync for MapperDataset<D, M, I>
where D: Sync, M: Sync, I: Sync,

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impl<D, M, I> Unpin for MapperDataset<D, M, I>
where D: Unpin, M: Unpin, I: Unpin,

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impl<D, M, I> UnsafeUnpin for MapperDataset<D, M, I>
where D: UnsafeUnpin, M: UnsafeUnpin,

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impl<D, M, I> UnwindSafe for MapperDataset<D, M, I>
where D: UnwindSafe, M: UnwindSafe, I: UnwindSafe,

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impl<T> Adaptor<()> for T

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fn adapt(&self)

Adapt the type to be passed to a metric.
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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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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<K, Q> Comparable<Q> for K
where K: Borrow<Q> + ?Sized, Q: Ord + ?Sized,

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fn compare(&self, key: &Q) -> Ordering

Compare self to key and return their ordering.
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impl<K, Q> Equivalent<Q> for K
where K: Borrow<Q> + ?Sized, Q: Eq + ?Sized,

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fn equivalent(&self, key: &Q) -> bool

Compare self to key and return true if they are equal.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<I, T> Window<I> for T
where T: Dataset<I> + ?Sized,

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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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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more