# WeightedIndex in rand::distributions::weighted::alias_method - Rust
API documentation for the Rust `WeightedIndex` struct in crate `rand`.
Keywords: rust, rustlang, rust-lang, WeightedIndex

# Struct rand::distributions::weighted::alias_method::WeightedIndex

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    pub struct WeightedIndex<W: Weight> { /* private fields */ }

👎 Deprecated since 0.8.0:

moved to rand_distr crate

## Implementations

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### impl<W: Weight> WeightedIndex<W>

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#### pub fn new(_weights: Vec<W>) -> Result<Self, WeightedError>

👎 Deprecated since 0.8.0:

moved to rand_distr crate

## Trait Implementations

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### impl<W: Debug + Weight> Debug for WeightedIndex<W>

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

Formats the value using the given formatter. Read more

## Auto Trait Implementations

### impl<W> RefUnwindSafe for WeightedIndex<W> where
W: RefUnwindSafe,

### impl<W> Send for WeightedIndex<W> where
W: Send,

### impl<W> Sync for WeightedIndex<W> where
W: Sync,

### impl<W> Unpin for WeightedIndex<W> where
W: Unpin,

### impl<W> UnwindSafe for WeightedIndex<W> where
W: 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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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### 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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### 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, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### 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>,

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

The type returned in the event of a conversion error.

const: unstable · source

#### 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