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Demo of Largest Triangle Three Buckets (LTTB) Downsampling Algorithm #389

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ozlb
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@ozlb ozlb commented Aug 18, 2022

Inspired by "Downsampling time series for visual representation" by Sveinn Steinarsson.
https://skemman.is/bitstream/1946/15343/3/SS_MSthesis.pdf

PR #270 improved performances but i believe downsample deserves at least to be present in demo as per #122 (comment)

@epezent
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epezent commented Sep 10, 2022

@ozlb -- I agree this should be demoed. I would prefer to see a separate demo that is more visible though (e.g. under Tools/Downsampling or Custom/Downsampling or a new tab altogether). It would also be nice to make a generic LTTB downsampler class that folks can copy for their own applications (e.g. something like ScrollingBuffer which is frequently copy/pasted by our users).

@jhgorse
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jhgorse commented Jan 15, 2024

The frontier expands incrementally with MinMaxLTTB. See the algorithm and performance claims here:
https://github.com/predict-idlab/MinMaxLTTB

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3 participants