signal opsignal → signalimport fullseye as fs; fs.ledger.lowpass(x, rate, cutoff, order=4) (実装を直接呼ぶなら import dsp; dsp.lowpass(x, rate, cutoff, order=4)、台帳から引くなら ops1d.get("lowpass"))Butterworth low-pass (scipy, zero-phase filtfilt). cutoff must be inside
(0, rate/2); an out-of-Nyquist cutoff raises instead of passing the signal
through. A signal too short for zero-phase filtfilt also raises (the message
names the exact minimum) instead of silently coming back unfiltered.
py -3.11 examples/gallery2d_texture_freq.pypy -3.11 examples/signal_filter.pysignal を入力に取れる)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
signal)highpass · bandpass · envelope · rms · resample · spectrum · spectrogram · zero_crossing_rate
Provenance: dsp.py — ONED operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.