Struct tensorflow_proto::tensorflow::tensorforest::GiniStats

pub struct GiniStats {
    pub square: f32,
}

Fields

square: f32

This allows us to quickly track and calculate impurity (classification) by storing the sum of input weights and the sum of the squares of the input weights. Weighted gini is then: 1 - (square / sum * sum). Updates to these numbers are: old_i = leaf->value(label) new_i = old_i + incoming_weight sum -> sum + incoming_weight square -> square - (old_i ^ 2) + (new_i ^ 2) total_left_sum -> total_left_sum - old_left_i * old_total_i + new_left_i * new_total_i

Trait Implementations

impl Clone for GiniStats

pub fn clone(&self) -> GiniStats

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GiniStats

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

Formats the value using the given formatter.

impl Default for GiniStats

pub fn default() -> Self

Returns the "default value" for a type.

impl Message for GiniStats

pub fn encode_raw<B>(&self, buf: &mut B) where
    B: BufMut, 

pub fn merge_field<B>(
    &mut self,
    tag: u32,
    wire_type: WireType,
    buf: &mut B,
    ctx: DecodeContext
) -> Result<(), DecodeError> where
    B: Buf, 

pub fn encoded_len(&self) -> usize

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

pub fn clear(&mut self)

Clears the message, resetting all fields to their default.

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

Encodes the message to a buffer.

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

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

pub fn decode<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes an instance of the message from a buffer.

pub fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

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

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

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

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

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

impl PartialEq<GiniStats> for GiniStats

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

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

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

This method tests for !=.

impl StructuralPartialEq for GiniStats