SpecialFunctions

sklears_utils::math_utils

Struct SpecialFunctions

pub struct SpecialFunctions;

Expand description

Special mathematical functions

Implementations§

impl SpecialFunctions

pub fn logistic<T: Float>(x: T) -> T

Logistic function (sigmoid)

pub fn logsumexp<T: Float>(x: &[T]) -> T

Log-sum-exp function for numerical stability

pub fn softmax<T: Float>(x: &[T]) -> Vec<T>

Softmax function with numerical stability

pub fn log_softmax<T: Float>(x: &[T]) -> Vec<T>

Log softmax function for numerical stability

pub fn gamma(x: f64) -> f64

Gamma function approximation (simplified for testing)

pub fn lgamma(x: f64) -> f64

Log gamma function

pub fn gamma_inc(a: f64, x: f64) -> f64

Incomplete gamma function (simplified implementation)

pub fn beta(a: f64, b: f64) -> f64

Beta function

pub fn erf(x: f64) -> f64

Error function approximation

pub fn erfc(x: f64) -> f64

Complementary error function

Auto Trait Implementations§

impl Freeze for SpecialFunctions

impl RefUnwindSafe for SpecialFunctions

impl Send for SpecialFunctions

impl Sync for SpecialFunctions

impl Unpin for SpecialFunctions

impl UnwindSafe for SpecialFunctions

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

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

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

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V