Struct rand_simple::LogLaplace

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

対数ラプラス分布

使用例

let mut log_laplace = rand_simple::Laplace::new(1192u32);
println!("位置母数 μ = 0, 尺度母数 θ = 1 の標準対数ラプラス分布に従う乱数を生成する -> {}", log_laplace.sample());
 
// 確率変数のパラメータを変更する場合
let location: f64 = -2f64;
let scale: f64 = 1.5f64;
let result: Result<(f64, f64), &str> = log_laplace.try_set_params(location, scale);
println!("位置母数 μ = {}, 尺度母数 θ = {} の対数ラプラス分布に従う乱数を生成する -> {}", location, scale, log_laplace.sample());

Implementations§

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impl LogLaplace

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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

対数ラプラス分布に従う乱数を返す

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pub fn try_set_params( &mut self, location: f64, scale: f64 ) -> Result<(f64, f64), &str>

確率変数のパラメータを変更する

  • location - 位置母数
  • scale - 尺度母数

Trait Implementations§

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impl Display for LogLaplace

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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
  • 位置母数
  • 尺度母数

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fn borrow_mut(&mut self) -> &mut T

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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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fn into(self) -> U

Calls U::from(self).

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default fn to_string(&self) -> String

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type Error = Infallible

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