Enum rsrl::fa::Projection

pub enum Projection {
    Dense(ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>),
    Sparse(BTreeSet<usize, Global>),
}

Projected feature vector representation.

Variants

Dense(ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>)

Dense, floating-point activation vector.

Sparse(BTreeSet<usize, Global>)

Sparse, index-based activation vector.

Implementations

impl Projection

pub fn remove(&mut self, idx: usize)

Remove/set to zero one feature entry of the projection.

pub fn activity(&self) -> usize

Return the maximum number of active features in the basis space.

pub fn expanded(self, dim: usize) -> ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>

Expand the projection and convert it into a raw, dense vector.

pub fn expanded_l1(
    self,
    dim: usize
) -> ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>

Return an expanded feature vector with L1 normalisation applied.

pub fn expanded_l2(
    self,
    dim: usize
) -> ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>

Return an expanded feature vector with L2 normalisation applied.

pub fn expanded_linf(
    self,
    dim: usize
) -> ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>

Return an expanded feature vector with Linf normalisation applied.

Trait Implementations

impl Add<Projection> for Projection

type Output = Projection

The resulting type after applying the + operator.

fn add(self, rhs: Projection) -> Projection

Performs the + operation.

impl Approximator<Projection> for ScalarFunction

type Value = f64

fn evaluate(&self, p: &Projection) -> Result<f64, EvaluationError>

Evaluate the function and return its value.

fn update(&mut self, p: &Projection, error: f64) -> Result<(), UpdateError>

Update the approximator’s estimate for the given input.

fn adapt(
    &mut self,
    new_features: &HashMap<usize, BTreeSet<usize, Global>, RandomState>
) -> Result<usize, AdaptError>

Adapt the approximator in light of newly discovered features.

impl Approximator<Projection> for VectorFunction

type Value = ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>

fn evaluate(
    &self,
    p: &Projection
) -> Result<ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>, EvaluationError>

Evaluate the function and return its value.

fn update(
    &mut self,
    p: &Projection,
    errors: ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>
) -> Result<(), UpdateError>

Update the approximator’s estimate for the given input.

fn adapt(
    &mut self,
    new_features: &HashMap<usize, BTreeSet<usize, Global>, RandomState>
) -> Result<usize, AdaptError>

Adapt the approximator in light of newly discovered features.

impl Clone for Projection

fn clone(&self) -> Projection

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Projection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Projection

fn deserialize<__D>(
    __deserializer: __D
) -> Result<Projection, <__D as Deserializer<'de>>::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FromIterator<f64> for Projection

fn from_iter<I>(iter: I) -> Projectionwhere
    I: IntoIterator<Item = f64>,

Creates a value from an iterator.

impl FromIterator<usize> for Projection

fn from_iter<I>(iter: I) -> Projectionwhere
    I: IntoIterator<Item = usize>,

Creates a value from an iterator.

impl Index<usize> for Projection

type Output = f64

The returned type after indexing.

fn index(&self, idx: usize) -> &f64

Performs the indexing (container[index]) operation.

impl PartialEq<Projection> for Projection

fn eq(&self, rhs: &Projection) -> bool

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

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 Serialize for Projection

fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.