Struct rand_simple::Triangular

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pub struct Triangular { /* private fields */ }
Expand description

三角分布

使用例

let mut triangular = rand_simple::Triangular::new(1192_u32);
println!("閉区間[0, 1], モード 0.5の三角分布に従う乱数を返す -> {}", triangular.sample());

// 確率変数のパラメータを変更する
let min: f64 = -1_f64;
let max: f64 = 1_f64;
let mode: f64 = 0.25_f64;
let result: Result<(f64, f64, f64), &str> = triangular.try_set_params(min, max, mode);
println!("閉区間[{}, {}], モード {}の三角分布に従う乱数を返す -> {}", min, max, mode, triangular.sample());

Implementations§

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impl Triangular

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pub fn new(_seed: u32) -> Self

コンストラクタ

  • _seed - 乱数の種
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pub fn sample(&mut self) -> f64

一様分布に従う乱数を返す

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pub fn try_set_params( &mut self, min: f64, max: f64, mode: f64 ) -> Result<(f64, f64, f64), &str>

確率変数のパラメータを変更する

  • min - 最小値
  • max - 最大値
  • mode - モード

Trait Implementations§

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impl Display for Triangular

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

println!マクロなどで表示するためのフォーマッタ

  • 構造体の型
  • 範囲(閉区間)
  • モード

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.