Changes in version 0.2.1                        

Documentation

  - A vignette carries one task end to end on synthetic or bundled data,
    offline, and is built and run by R CMD check.
  - Runnable @examples added or corrected across 1 help pages. Each runs
    offline in seconds, writes nothing outside tempdir(), and is
    executed by R CMD check; anything needing a device, a download or an
    optional backend is fenced with the reason stated.

                        Changes in version 0.2.0                        

The bundled adult_reference norms are now derived from real
motion-capture data, replacing the previous synthetic model.

  - Source: the public WBDS dataset (Fukuchi, Fukuchi & Duarte 2018,
    PeerJ; figshare CC-BY) — the 24 young healthy adults (age 21-37,
    mean 27.6; 14 M/10 F), overground comfortable-speed walking, right
    limb, time-normalised to the gait cycle. The mean±SD bands (51-
    and 101-point) and the GDI feature population are computed from
    these real per-subject waveforms (previously synthetic sin/cos
    curves with a constant SD and an rnorm-generated GDI population).
  - Variable mapping is evidence-based: sagittal angles use the Z-axis
    convention (validated against Perry/Winter — knee-flexion amp 63.6°
    peak@73%, hip 39.7°, ankle 26.2°, pelvic tilt ~10.5° amp 1.9°);
    frontal/transverse axes resolved by matching published normative
    shape (pelvic obliquity, hip adduction +7° stance, etc.).
    foot_progression = FootAngleY (transverse; sign-convention noted).
  - Validated: the sagittal-landmark test (VAL-11) passes against
    published ranges, and the 24 reference controls give GDI = 100.0
    ± 10.0. A patient's GDI/GPS now reflects deviation from real
    normative variability rather than a fabricated constant-SD band.
  - data-raw/make_gaitnorm.R rewritten as a real download-and-process
    script (documents the WBDS DOI, young-cohort selection and the axis
    mapping).

                        Changes in version 0.1.1                        

Validation

  - Added VAL-11 verification (test-published-norms.R): the bundled
    adult_reference sagittal joint-angle bands are checked to reproduce
    the published healthy-adult normative landmarks they are derived
    from (Perry & Burnfield 2010; Winter 1991; Kadaba et al. 1990) --
    peak knee flexion ~60 deg in swing, hip flexion/extension ROM ~40
    deg, ankle dorsi/plantarflexion ROM ~28 deg, anterior pelvic tilt
    ~11 deg. The public gait databases (GaitRec, Gutenberg) contain only
    ground reaction forces, not joint kinematics, so the bands are
    validated against the published normative ranges rather than
    recomputed from raw kinematics. MANIFEST provenance updated
    accordingly.

                        Changes in version 0.1.0                        

  - Initial release: bundled adult normative gait-kinematics reference
    bands and GDI feature model.