Struct TreeNode 

pub struct TreeNode {
    pub tree_id: u64,
    pub node_id: u64,
    pub node_behavior: i32,
    pub branch_feature_index: u64,
    pub branch_feature_value: f64,
    pub true_child_node_id: u64,
    pub false_child_node_id: u64,
    pub missing_value_tracks_true_child: bool,
    pub evaluation_info: Vec<EvaluationInfo>,
    pub relative_hit_rate: f64,
}

Fields

tree_id: u64

node_id: u64

node_behavior: i32

The branch mode parameters.

If branch is false, then the parameters in this section must be filled in to determine how the branching functions.

branch_feature_index: u64

If the node behavior mode is a branch mode, then these values must be filled in.

branch_feature_value: f64

true_child_node_id: u64

false_child_node_id: u64

missing_value_tracks_true_child: bool

evaluation_info: Vec<EvaluationInfo>

relative_hit_rate: f64

The relative hit rate of a node for optimization purposes.

This value has no effect on the accuracy of the result; it allows the tree to optimize for frequent branches. The value is relative, compared to the hit rates of other branch nodes.

You typically use a proportion of training samples that reached this node or some similar metric to derive this value.

Implementations

impl TreeNode

pub fn node_behavior(&self) -> TreeNodeBehavior

Returns the enum value of node_behavior, or the default if the field is set to an invalid enum value.

pub fn set_node_behavior(&mut self, value: TreeNodeBehavior)

Sets node_behavior to the provided enum value.

Trait Implementations

impl Clone for TreeNode

fn clone(&self) -> TreeNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TreeNode

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

Formats the value using the given formatter.

impl Default for TreeNode

fn default() -> Self

Returns the “default value” for a type.

impl Message for TreeNode

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for TreeNode

fn eq(&self, other: &TreeNode) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for TreeNode