Enum EmlNode 

pub enum EmlNode {
    One,
    Const(f64),
    Var(usize),
    Eml {
        left: Arc<EmlNode>,
        right: Arc<EmlNode>,
    },
}

EML tree node. All nodes share the same type — uniform binary tree. Arc enables O(1) subtree sharing during symbolic regression.

Variants

One

Constant 1 (the only constant in the paper’s grammar).

Const(f64)

Free floating-point constant (activated when SymRegConfig.enable_const_leaf = true). Not part of the base EML grammar; used during symbolic regression to represent learnable constants that are later snapped to named constants.

Var(usize)

Input variable referenced by index: x0, x1, …

Eml

eml(left, right) = exp(left) - ln(right)

Fields

left: Arc<EmlNode>

Left subtree (argument to exp).

right: Arc<EmlNode>

Right subtree (argument to ln).

Trait Implementations

impl Clone for EmlNode

fn clone(&self) -> EmlNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EmlNode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EmlNode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for EmlNode

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

Formats the value using the given formatter.

impl PartialEq for EmlNode

fn eq(&self, other: &EmlNode) -> 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 Serialize for EmlNode

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.

impl StructuralPartialEq for EmlNode