Per-axis weights for fx_signature_distance(). Set an axis to 0 to ignore
it, or raise one to emphasize it. SIGNATURE_WEIGHTS weights all seven axes
equally; WEIGHTS_FORMAT is tuned for format-level comparisons.
Per-axis weights for fx_signature_distance(). Set an axis to 0 to ignore
it, or raise one to emphasize it. SIGNATURE_WEIGHTS weights all seven axes
equally; WEIGHTS_FORMAT is tuned for format-level comparisons.