Struct ux_indicators::indicators::EfficiencyRatio[−][src]

pub struct EfficiencyRatio { /* fields omitted */ }

Kaufman’s Efficiency Ratio (ER).

It is calculated by dividing the price change over a period by the absolute sum of the price movements that occurred to achieve that change. The resulting ratio ranges between 0.0 and 1.0 with higher values representing a more efficient or trending market.

Parameters

  • length - number of periods (integer greater than 0)

Example

use core::indicators::EfficiencyRatio;
use core::Next;

let mut er = EfficiencyRatio::new(4).unwrap();
assert_eq!(er.next(10.0), 1.0);
assert_eq!(er.next(13.0), 1.0);
assert_eq!(er.next(12.0), 0.5);
assert_eq!(er.next(13.0), 0.6);
assert_eq!(er.next(18.0), 0.8);
assert_eq!(er.next(19.0), 0.75);

Implementations

impl EfficiencyRatio[src]

pub fn new(length: u32) -> Result<Self>[src]

Trait Implementations

impl Default for EfficiencyRatio[src]

impl Display for EfficiencyRatio[src]

impl<'a, T: Close> Next<&'a T> for EfficiencyRatio[src]

type Output = f64

impl Next<f64> for EfficiencyRatio[src]

type Output = f64

impl Reset for EfficiencyRatio[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> ToString for T where
    T: Display + ?Sized, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.