Struct IndexMapping 

pub struct IndexMapping {
    pub gamma: f64,
    pub index_offset: f64,
    pub interpolation: i32,
}

How to map positive values to the bins they belong to.

Fields

gamma: f64

The gamma parameter of the mapping, such that bin index that a value v belongs to is roughly equal to log(v)/log(gamma).

index_offset: f64

An offset that can be used to shift all bin indexes.

interpolation: i32

To speed up the computation of the index a value belongs to, the computation of the log may be approximated using the fact that the log to the base 2 of powers of 2 can be computed at a low cost from the binary representation of the input value. Other values can be approximated by interpolating between successive powers of 2 (linearly, quadratically or cubically). NONE means that the log is to be computed exactly (no interpolation).

Implementations

impl IndexMapping

pub fn interpolation(&self) -> Interpolation

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

pub fn set_interpolation(&mut self, value: Interpolation)

Sets interpolation to the provided enum value.

Trait Implementations

impl Clone for IndexMapping

fn clone(&self) -> IndexMapping

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexMapping

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

Formats the value using the given formatter.

impl Default for IndexMapping

fn default() -> Self

Returns the “default value” for a type.

impl Message for IndexMapping

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 IndexMapping

fn eq(&self, other: &IndexMapping) -> 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 Copy for IndexMapping

impl StructuralPartialEq for IndexMapping