function op• Data kinds: signal × signal → measurement
• Call: import fullseye as fs; fs.ledger.distance_funct_1d(y1, y2, mode='max') -> 'float' (to call the implementation directly, import funct1d; funct1d.distance_funct_1d(y1, y2, mode='max') -> 'float'; from the registry, ops1d.get("distance_funct_1d"))
Distance between two functions on the same grid (HALCON `distance_funct_1d`).
`mode="max" is the Chebyshev / sup distance max |y1 - y2|`;
`mode="mean"` the mean absolute difference. Both are symmetric and zero
iff the functions are identical.
:param y1: 1-D function, at least 1 sample.
:param y2: 1-D function, same length as *y1* (unequal lengths raise —
pointwise distance is undefined across different grids; silent numpy
broadcasting is explicitly rejected).
:param mode: `"max" or "mean"` (anything else raises).
:raises ValueError: non-1-D / NaN / Inf input, empty input, length mismatch,
or unknown *mode*.
• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).
• Operator provenance and references — the sources of the research/methods this op family came from.
• The canonical algorithm (author, year) and its uses are named in the family usage guide above.
• signal_funct1d — py -3.11 examples/signal_funct1d.py
measurement as input)—
function)create_funct_1d_array · create_funct_1d_pairs · smooth_funct_1d_gauss · smooth_funct_1d_mean · derivate_funct_1d · integrate_funct_1d · zero_crossings_funct_1d · local_min_max_funct_1d
*Provenance: funct1d.py — ONED operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.