Function weighted_sum_simd 

pub fn weighted_sum_simd<F>(
    values: &ArrayView1<'_, F>,
    weights: &ArrayView1<'_, F>,
) -> F
where
    F: Float + SimdUnifiedOps,

SIMD-accelerated weighted sum

Computes sum(values * weights).

Arguments

• values - Values array
• weights - Weights array (same length as values)

Returns

Weighted sum

Examples

use scirs2_core::ndarray::array;
use scirs2_core::ndarray_ext::elementwise::weighted_sum_simd;

let values = array![10.0_f64, 20.0, 30.0];
let weights = array![0.2_f64, 0.3, 0.5];
let ws = weighted_sum_simd::<f64>(&values.view(), &weights.view());
// 10*0.2 + 20*0.3 + 30*0.5 = 2 + 6 + 15 = 23
assert!((ws - 23.0).abs() < 1e-10);

Use Cases

• Portfolio valuation
• Weighted regression
• Attention mechanism scores
• Signal filtering