Struct TreeNode

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pub struct TreeNode {
    pub id: usize,
    pub depth: usize,
    pub sample_indices: Vec<usize>,
    pub impurity: f64,
    pub prediction: f64,
    pub potential_decrease: f64,
    pub best_split: Option<CustomSplit>,
    pub parent_id: Option<usize>,
    pub is_leaf: bool,
}

Expand description

Tree node for building algorithms

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§id: usize

Node ID

§depth: usize

Depth of this node

§sample_indices: Vec<usize>

Samples in this node

§impurity: f64

Impurity of this node

§prediction: f64

Predicted value/class for this node

§potential_decrease: f64

Potential impurity decrease if this node is split

§best_split: Option<CustomSplit>

Best split for this node (if any)

§parent_id: Option<usize>

Parent node ID

§is_leaf: bool

Whether this is a leaf node

Trait Implementations§

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impl Clone for TreeNode

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fn clone(&self) -> TreeNode

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for TreeNode

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for TreeNode

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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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
where U: From<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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