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Feat/cusum filter #127

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merged 4 commits into from
Dec 7, 2023
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ngriffiths13
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Mostly my changes, but added a few linting changes that ruff wasn't happy about.

Nelson Griffiths added 4 commits November 23, 2023 07:30
…m as polars plugin

Implemented the rust version of CUSUM and exposed it in the FeatureExtractor class as a plugin. Included a notebook in the documentation and added a new test file for future changepoint detection algorithms.
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@abstractqqq
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The name cusum is too prone to be confused with cumsum. Maybe cumul_sum is better?

@ngriffiths13
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The name cusum is too prone to be confused with cumsum. Maybe cumul_sum is better?

The paper written calls it the cusum algorithm... Which I agree is unfortunate. What about cusum_changepoint?

@abstractqqq
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The name cusum is too prone to be confused with cumsum. Maybe cumul_sum is better?

The paper written calls it the cusum algorithm... Which I agree is unfortunate. What about cusum_changepoint?

I don't have a very strong opinion on this but the recent trend of Polars renaming groupby to group_by, cumsum to cum_sum make me think that maybe cul_sum is a good choice... I would leave the decision to you though

@topher-lo topher-lo merged commit 52f4332 into functime-org:main Dec 7, 2023
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Merged it in. Can decide to change naming in another PR before next release

topher-lo pushed a commit that referenced this pull request Dec 19, 2023
Co-authored-by: Nelson Griffiths <[email protected]>
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3 participants