[−][src]Struct ta::indicators::StandardDeviation
Standard deviation (SD).
Returns the standard deviation of the last n values.
Formula
Where:
- σ - value of standard deviation for N given probes.
- N - number of probes in observation.
- xi - i-th observed value from N elements observation.
Parameters
- n - number of periods (integer greater than 0)
Example
use ta::indicators::StandardDeviation; use ta::Next; let mut sd = StandardDeviation::new(3).unwrap(); assert_eq!(sd.next(10.0), 0.0); assert_eq!(sd.next(20.0), 5.0);
Links
Implementations
impl StandardDeviation
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Trait Implementations
impl Clone for StandardDeviation
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fn clone(&self) -> StandardDeviation
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fn clone_from(&mut self, source: &Self)
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impl Debug for StandardDeviation
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impl Default for StandardDeviation
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impl Display for StandardDeviation
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impl<'a, T: Close> Next<&'a T> for StandardDeviation
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impl Next<f64> for StandardDeviation
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impl Reset for StandardDeviation
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Auto Trait Implementations
impl RefUnwindSafe for StandardDeviation
impl Send for StandardDeviation
impl Sync for StandardDeviation
impl Unpin for StandardDeviation
impl UnwindSafe for StandardDeviation
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,