Struct linfa::composing::platt_scaling::Platt

pub struct Platt<F, O> { /* private fields */ }

Expand description

Fitted Platt model

This model contains a sigmoid scaling parameters and a second univariate, uncalibrated model. The output of the uncalibrated model is scaled with the following function:

g(x) = 1 / (1 + exp(A * f(x) + B)

The scaling factors A and B are estimated with the Newton’s method, presented in the following paper: https://www.csie.ntu.edu.tw/~cjlin/papers/plattprob.pdf

Implementations§

impl<F: Float, O> Platt<F, O>

pub fn params() -> PlattParams<F, O>

Create default parameter set for the Platt scaling algorithm

The default values are:

maxiter: 100,
minstep: 1e-10,
sigma: 1e-12

Trait Implementations§

impl<F: Clone, O: Clone> Clone for Platt<F, O>

fn clone(&self) -> Platt<F, O>

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl<F: Debug, O: Debug> Debug for Platt<F, O>

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

Formats the value using the given formatter. Read more

impl<F: PartialEq, O: PartialEq> PartialEq for Platt<F, O>

fn eq(&self, other: &Platt<F, O>) -> bool

This method tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<F: Float, D, O> PredictInplace<ArrayBase<D, Dim<[usize; 2]>>, ArrayBase<OwnedRepr<Pr>, Dim<[usize; 1]>>> for Platt<F, O>
where D: Data<Elem = F>, O: PredictInplace<ArrayBase<D, Ix2>, ArrayBase<D, Ix1>>,

fn predict_inplace(&self, data: &ArrayBase<D, Ix2>, targets: &mut Array1<Pr>)

Predict something in place

fn default_target(&self, x: &ArrayBase<D, Ix2>) -> Array1<Pr>

Create targets that predict_inplace works with.

impl<F: Eq, O: Eq> Eq for Platt<F, O>

impl<F, O> StructuralPartialEq for Platt<F, O>

Auto Trait Implementations§

impl<F, O> RefUnwindSafe for Platt<F, O>
where F: RefUnwindSafe, O: RefUnwindSafe,

impl<F, O> Send for Platt<F, O>
where F: Send, O: Send,

impl<F, O> Sync for Platt<F, O>
where F: Sync, O: Sync,

impl<F, O> Unpin for Platt<F, O>
where F: Unpin, O: Unpin,

impl<F, O> UnwindSafe for Platt<F, O>
where F: UnwindSafe, O: UnwindSafe,

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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Checks if this value is equivalent to the given key. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.

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> 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<'a, F, D, DM, T, O> Predict<&'a ArrayBase<D, DM>, T> for O
where D: Data<Elem = F>, DM: Dimension, O: PredictInplace<ArrayBase<D, DM>, T>,

fn predict(&self, records: &'a ArrayBase<D, DM>) -> T

impl<'a, F, R, T, S, O> Predict<&'a DatasetBase<R, T>, S> for O
where R: Records<Elem = F>, O: PredictInplace<R, S>,

fn predict(&self, ds: &'a DatasetBase<R, T>) -> S

impl<F, D, E, T, O> Predict<ArrayBase<D, Dim<[usize; 2]>>, DatasetBase<ArrayBase<D, Dim<[usize; 2]>>, T>> for O
where D: Data<Elem = F>, T: AsTargets<Elem = E>, O: PredictInplace<ArrayBase<D, Dim<[usize; 2]>>, T>,

fn predict( &self, records: ArrayBase<D, Dim<[usize; 2]>> ) -> DatasetBase<ArrayBase<D, Dim<[usize; 2]>>, T>

impl<F, R, T, E, S, O> Predict<DatasetBase<R, T>, DatasetBase<R, S>> for O
where R: Records<Elem = F>, S: AsTargets<Elem = E>, O: PredictInplace<R, S>,

fn predict(&self, ds: DatasetBase<R, T>) -> DatasetBase<R, S>

impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).

unsafe fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.

fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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