Function std_simd 

pub fn std_simd<F, D>(x: &ArrayBase<D, Ix1>, ddof: usize) -> StatsResult<F>
where
    F: Float + NumCast + SimdUnifiedOps,
    D: Data<Elem = F>,

Calculate standard deviation using SIMD operations

Arguments

• x - Input data array
• ddof - Delta degrees of freedom (0 for population, 1 for sample)

Returns

• The standard deviation of the input data