Dcurvature 0.0.4

New features

• select_components(): exposes the discrete-curvature elbow criterion (adaptive m* from first/second-order operators, plus the extended m** with a minimum cumulative-variance threshold tau) as a single reproducible call. The same logic was previously only reachable inside the Shiny app, so results reported in the accompanying article can now be reproduced programmatically.

Bug fixes

• Corrected the adaptive selection rule (mstar_fn) to follow the manuscript (Section 4) faithfully. It now operates directly on the boundary-extended curvature (with the endpoint zeros kept) and drops the +1 / +2+1 index offsets that made the package return one component too many. Keeping the boundary zeros lets the first-order operator detect a dominant first component at m = 1. The selected m* now matches the curvature / second-difference peak shown in the results table (and the value reported in the article). The rule is identical across select_components() and both bundled Shiny apps.