Enum Units 

#[non_exhaustive]
pub enum Units {
    Levels,
    Change,
    ChangeFromYearAgo,
    PercentChange,
    PercentChangeFromYearAgo,
    CompoundedAnnualRateOfChange,
    ContinuouslyCompoundedRateOfChange,
    ContinuouslyCompoundedAnnualRateOfChange,
    NaturalLog,
}

A units transformation FRED applies to a series’ observations before returning them (the units request parameter).

A request-only, closed vocabulary — query_code is the value sent to FRED. #[non_exhaustive] leaves room for FRED to add transformations without a breaking change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Levels

Levels — the data as reported (lin, FRED’s default).

Change

Change from the previous period (chg).

ChangeFromYearAgo

Change from a year ago (ch1).

PercentChange

Percent change from the previous period (pch).

PercentChangeFromYearAgo

Percent change from a year ago (pc1).

CompoundedAnnualRateOfChange

Compounded annual rate of change (pca).

ContinuouslyCompoundedRateOfChange

Continuously compounded rate of change (cch).

ContinuouslyCompoundedAnnualRateOfChange

Continuously compounded annual rate of change (cca).

NaturalLog

Natural log (log).

Implementations

impl Units

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

The FRED query code for this transformation.

Trait Implementations

impl Clone for Units

fn clone(&self) -> Units

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Units

impl Debug for Units

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

Formats the value using the given formatter.

impl Eq for Units

impl PartialEq for Units

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