Struct PolynomialFeatures

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pub struct PolynomialFeatures { /* private fields */ }

Expand description

Polynomial feature transformation

Generates polynomial features up to specified degree

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impl PolynomialFeatures

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pub fn new(degree: usize, interaction_only: bool, include_bias: bool) -> Self

Creates a new PolynomialFeatures transformer

§Arguments

degree - The degree of the polynomial features to generate
interaction_only - If true, only interaction features are produced (no powers)
include_bias - If true, include a bias term (constant feature equal to 1)

§Returns

A new PolynomialFeatures instance

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pub fn n_output_features(&self, n_features: usize) -> usize

Calculates the number of output features that will be generated

§Arguments

n_features - The number of input features

§Returns

The number of features that will be generated

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pub fn transform<S>(&self, array: &ArrayBase<S, Ix2>) -> Result<Array2<f64>>
where S: Data, S::Elem: Float + NumCast,

Transforms the input data into polynomial features

§Arguments

array - The input array to transform

§Returns

Result<Array2<f64>> - The transformed array with polynomial features

Auto Trait Implementations§

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impl UnwindSafe for PolynomialFeatures

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

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Gets the TypeId of self. Read more

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where T: ?Sized,

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
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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> IntoEither for T

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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

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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

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