Struct linfa::composing::platt_scaling::Platt

source · [−]

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

source

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

source

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

source

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>>,

source

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

Predict something in place

source

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

Create targets that predict_inplace works with.

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

source

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

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

source

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

source

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>,

source

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

source

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

source

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

source

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>,

source

fn predict(
&self,
records: ArrayBase<D, Ix2>
) -> DatasetBase<ArrayBase<D, Ix2>, T>

source

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>,

source

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

source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct linfa::composing::platt_scaling::Platt

Implementations

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

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

Trait Implementations

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>)

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

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,

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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, Ix2>) -> DatasetBase<ArrayBase<D, Ix2>, 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<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

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

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

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

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

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

pub fn vzip(self) -> V

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>>,

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,

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

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

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

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

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>,

impl<'a, F, R, T, S, O> Predict<&'a DatasetBase<R, T>, S> for O where
R: Records<Elem = F>,
O: PredictInplace<R, 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, Ix2>
) -> DatasetBase<ArrayBase<D, Ix2>, 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>,

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

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

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