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feat: Added in the std_dev method from the Distribution trait explicitly into the Normal struct #243

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Jun 14, 2024
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feat: Added in the std_dev method from the Distribution trait explicitly into the Normal struct #243

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7 changes: 7 additions & 0 deletions src/distribution/normal.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -193,6 +193,13 @@ impl Distribution<f64> for Normal {
Some(self.std_dev * self.std_dev)
}

/// Returns the standard deviation of the normal distribution
/// # Remarks
/// This is the same standard deviation used to construct the distribution
fn std_dev(&self) -> Option<f64> {
Some(self.std_dev)
}

/// Returns the entropy of the normal distribution
///
/// # Formula
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