Struct TrueRange

pub struct TrueRange { /* private fields */ }

The range of a day’s trading is simply high - low. The true range extends it to yesterday’s closing price if it was outside of today’s range.

The true range is the largest of one the following:

• Most recent period’s high minus the most recent period’s low
• Absolute value of the most recent period’s high minus the previous close
• Absolute value of the most recent period’s low minus the previous close

Formula

TR = max[(high - low), abs(high - close_prev), abs(low - close_prev)]

Example

extern crate ta;
#[macro_use] extern crate assert_approx_eq;

use ta::{Next, DataItem};
use ta::indicators::TrueRange;

fn main() {
    let data = vec![
        // open, high, low, close, tr
        (9.7   , 10.0, 9.0, 9.5  , 1.0),  // tr = high - low = 10.0 - 9.0 = 1.0
        (9.9   , 10.4, 9.8, 10.2 , 0.9),  // tr = high - prev_close = 10.4 - 9.5 = 0.9
        (10.1  , 10.7, 9.4, 9.7  , 1.3),  // tr = high - low = 10.7 - 9.4 = 1.3
        (9.1   , 9.2 , 8.1, 8.4  , 1.6),  // tr = prev_close - low = 9.7 - 8.1 = 1.6
    ];
    let mut indicator = TrueRange::new();

    for (open, high, low, close, tr) in data {
        let di = DataItem::builder()
            .high(high)
            .low(low)
            .close(close)
            .open(open)
            .volume(1000.0)
            .build().unwrap();
        assert_approx_eq!(indicator.next(&di), tr);
    }
}

Implementations

impl TrueRange

pub fn new() -> Self

Trait Implementations

impl Calculate for TrueRange

fn calc(&mut self, input: f64) -> f64

impl Clone for TrueRange

fn clone(&self) -> TrueRange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TrueRange

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

Formats the value using the given formatter.

impl Default for TrueRange

fn default() -> Self

Returns the “default value” for a type.

impl Display for TrueRange

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

Formats the value using the given formatter.

impl<T: High + Low + Close> Next<T> for TrueRange

fn next(&mut self, bar: &T) -> f64

impl Reset for TrueRange

fn reset(&mut self)