Function alignment_quality 

pub fn alignment_quality(
    data: &FdMatrix,
    karcher: &KarcherMeanResult,
    argvals: &[f64],
) -> AlignmentQuality

Compute comprehensive alignment quality metrics.

Arguments

• data — Original functional data (n × m)
• karcher — Pre-computed Karcher mean result
• argvals — Evaluation points (length m)