more quality of life updates
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@@ -23,7 +23,7 @@ Frequency-domain filtering of a line profile or 2D data field using a Butterwort
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| cutoff_high | FLOAT | 0.4 | Upper cutoff for bandpass/notch modes (0.001–1.0) |
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| order | INT | 2 | Butterworth filter order; higher values give steeper roll-off (1–10) |
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## Limitations
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## Notes
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- cutoff_high is only used for bandpass and notch modes.
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- The filter is applied in the frequency domain via FFT; very short lines may show wrap-around artefacts.
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