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BimodalDetector

Struct BimodalDetector 

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

二峰性検出エンジン。

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impl BimodalDetector

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pub fn new(config: BimodalConfig) -> Self

新規 BimodalDetector を生成する。

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pub fn config(&self) -> &BimodalConfig

設定への参照を取得する。

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pub fn count_local_peaks(probabilities: &[f64]) -> usize

確率分布の局所極大値 (ピーク) の個数を $O(M)$ で走査・カウントする。

端点 ($k=0, M-1$) および内部の極大値を検出し、単峰性 (単調増加・単調減少・中央山型) と 意見二極化 (2 箇所以上のピーク) を幾何学的に識別する。

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pub fn detect(&self, probabilities: &[f64]) -> Result<BimodalReport>

確率分布スライスを検査し、二峰性レポートを生成する。

§判定基準 (ハイブリッド判定)
  1. 段階数が min_categories 以上であること。
  2. 確率分布の局所ピーク数が 2 箇所以上存在すること (単調推移や単一山型を排除)。
  3. 双峰性係数 $BC > \text{bc_threshold}$ (一様分布水準 0.555 を超過)。
  4. 分散比率 $\text{VarRatio} > \text{var_ratio_threshold}$ (理論最大分散の 35% 以上)。

Trait Implementations§

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impl Clone for BimodalDetector

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fn clone(&self) -> BimodalDetector

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for BimodalDetector

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

Formats the value using the given formatter. Read more
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impl Default for BimodalDetector

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fn default() -> Self

Returns the “default value” for a type. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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