Enum LevelInterpolation 

pub enum LevelInterpolation {
    Linear,
    LogLinear,
}

How projected levels between nodes are computed.

A discount curve’s pillars are log discount factors, so its interpolation acts on log ordinates by construction. An inflation curve’s ordinates are raw levels, so each member here has to name what it acts on.

Variants

Linear

Straight line on index levels.

LogLinear

Straight line on ln(level) — exponential growth between nodes, so the midpoint of levels a and b is √(a·b).

Implementations

impl LevelInterpolation

pub const ACCEPTED: &'static [&'static str]

Every spelling this vocabulary accepts, canonical forms first.

Matching additionally ignores case and _/-/whitespace — see normalize in core::vocabulary.

pub fn code(self) -> &'static str

The canonical code for this variant; round-trips through FromStr.

Trait Implementations

impl Clone for LevelInterpolation

fn clone(&self) -> LevelInterpolation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LevelInterpolation

impl Debug for LevelInterpolation

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

Formats the value using the given formatter.

impl Default for LevelInterpolation

fn default() -> LevelInterpolation

Returns the “default value” for a type.

impl Eq for LevelInterpolation

impl FromStr for LevelInterpolation

type Err = VocabularyParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for LevelInterpolation

fn eq(&self, other: &LevelInterpolation) -> 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 LevelInterpolation