Function shape_self_distance_matrix 

pub fn shape_self_distance_matrix(
    data: &FdMatrix,
    argvals: &[f64],
    quotient: ShapeQuotient,
    lambda: f64,
) -> Result<FdMatrix, FdarError>

Compute the pairwise shape distance matrix for a set of curves.

Pre-processes all curves according to the quotient type, then delegates to the elastic self-distance matrix computation.

Arguments

• data — Functional data matrix (n x m).
• argvals — Evaluation points (length m).
• quotient — Which transformations to factor out.
• lambda — Roughness penalty for alignment.

Errors

Returns FdarError::InvalidDimension if argvals length does not match m.