Function l1_norm_delta

nodedb/src/engine/graph/algo/simd.rs:86–93

L1 norm of element-wise difference.

(a: &[f64], b: &[f64])

    /// L1 norm of element-wise difference.
    pub fn l1_norm_delta(a: &[f64], b: &[f64]) -> f64 {
        let n = a.len().min(b.len());
        let mut sum = 0.0f64;
        for i in 0..n {
            sum += (a[i] - b[i]).abs();
        }
        sum
    }

    /// Sum of a[i] where mask[i] is true.
    pub fn dangling_sum(a: &[f64], mask: &[bool]) -> f64 {