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refactor: move Decay/Edecay from trends_IIR to numerics; update filter signatures

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- Move lib/trends_IIR/decay/ → lib/numerics/decay/
- Move lib/trends_IIR/edecay/ → lib/numerics/edecay/
- Update Category in Decay.md/Edecay.md from Trends (IIR) to Numerics
- Add DECAY/EDECAY entries to lib/numerics/_index.md and docs/indicators.md
- Update filter signature .md files and .svg assets
- Update trends_IIR signature docs (htit, mama, holt, etc.)
- All 163 tests passing, 0 warnings, 0 errors
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Miha Kralj
2026-03-10 20:33:55 -07:00
parent 35a6702b06
commit 7ec79538aa
64 changed files with 183229 additions and 157318 deletions
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lib/numerics/_index.md
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@@ -10,8 +10,10 @@ Basic mathematical transforms and utility functions for time series. These build
| [BETADIST](betadist/Betadist.md) | Beta Distribution | Beta probability distribution transform. |
| [BINOMDIST](binomdist/Binomdist.md) | Binomial Distribution | Binomial probability distribution transform. |
| [CHANGE](change/Change.md) | Percentage Change | Relative price movement over lookback period. |
| [DECAY](decay/Decay.md) | Linear Decay | Peak envelope with linear degradation; max(input, prev − 1/period). |
| [CWT](cwt/Cwt.md) | Continuous Wavelet Transform | Time-frequency decomposition with continuous wavelets. |
| [DWT](dwt/Dwt.md) | Discrete Wavelet Transform | À trous Haar stationary DWT; multi-resolution approximation + detail decomposition. |
| [EDECAY](edecay/Edecay.md) | Exponential Decay | Peak envelope with exponential degradation; max(input, prev × (period−1)/period). |
| [EXPDIST](expdist/Expdist.md) | Exponential Distribution | Exponential probability distribution transform. |
| [EXPTRANS](exptrans/Exptrans.md) | Exponential Transform | e^x transform for log-space conversion reversal. |
| [FDIST](fdist/Fdist.md) | F-Distribution | Fisher-Snedecor probability distribution transform. |