Compute Anchor Template (T_anchor_final) Recovery Metrics — compute_anchor_template

Evaluates how well the estimated group anchor template (`object$T_anchor_final` from a `hatsa_projector` object) matches the true spectral basis at the anchor locations.

Usage

compute_anchor_template_recovery(
  hatsa_object,
  U_true,
  anchor_indices_true,
  ...
)

Arguments

hatsa_object: A fitted `hatsa_projector` object.
U_true: The ground-truth spectral basis (matrix, Vp x k) for all parcels.
anchor_indices_true: A numeric vector of indices specifying which rows of `U_true` correspond to the anchor parcels.
...: Additional arguments passed to `vegan::procrustes`.

Value

A list containing:

correlation: Pearson correlation between the vectorized aligned estimated anchor template and the vectorized true anchor template.
frobenius_norm_diff: Frobenius norm of the difference between the aligned estimated anchor template and the true anchor template.
procrustes_result: The result of the `vegan::procrustes` call.
T_anchor_aligned: The Procrustes-aligned estimated anchor template.

Examples

# See core-hatsa-toy-example.Rmd for usage.