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

F分布

使用例

let mut f = rand_simple::FDistribution::new([1192_u32, 765_u32, 1543_u32, 2003_u32,1192_u32, 765_u32, 1543_u32, 2003_u32]);
println!("初期設定の場合、自由度 (1, 1)のχ二乗分布に従う乱数を返す -> {}", f.sample());

// 確率変数のパラメータを変更する場合
let degree_of_freedom_1: u64 = 2_u64;
let degree_of_freedom_2: u64 = 3_u64;
let result: Result<(u64, u64), &str> = f.try_set_params(degree_of_freedom_1, degree_of_freedom_2);
println!("自由度 {}, {}の乱数を生成する -> {}", degree_of_freedom_1, degree_of_freedom_2, f.sample());

Implementations§

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impl FDistribution

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pub fn new(seeds: [u32; 8]) -> Self

コンストラクタ

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

乱数を計算する

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pub fn try_set_params( &mut self, degree_of_freedom_1: u64, degree_of_freedom_2: u64 ) -> Result<(u64, u64), &str>

確率変数のパラメータを変更する

  • degree_of_freedom - 自由度 r

Trait Implementations§

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impl Display for FDistribution

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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

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

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fn type_id(&self) -> TypeId

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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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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 T
where 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 T
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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 T
where 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 T
where 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.