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Miha Kralj b9783f7c03 docs: sweep all indicator references — fix paths, add missing entries, sort alphabetically

_sidebar.md:
- Fix 4 wrong DI/DM paths (minus_di→minusdi, minus_dm→minusdm, plus_di→plusdi, plus_dm→plusdm)
- Sort Dynamics section alphabetically
- Add DECAY and EDECAY to Numerics section

lib/dynamics/_index.md:
- Fix HT_TRENDMODE link (Httrendmode.md→HtTrendmode.md)
- Sort all 25 indicators alphabetically

lib/core/_index.md:
- Sort all 8 indicators alphabetically (HA was out of order)

docs/indicators.md:
- FIR: Replace with all 33 entries sorted
- IIR: Replace with all 36 entries sorted
- Filters: Add SAK (now 37 entries)
- Oscillators: Add 17 missing (BBI, BRAR, COPPOCK, CRSI, CTI, DOSC, ER, ERI, FI, KRI, KST, MSTOCH, PSL, QQE, RVGI, SQUEEZE, TD_SEQ) — now 48 entries
- Dynamics: Sort all 25 entries alphabetically
- Statistics: Add POLYFIT, TRIM, WAVG, WINS — now 35 entries sorted
- Numerics: Add FFT, IFFT — now 31 entries sorted
- Core: Add HA — now 8 entries sorted

Total: 402 indicators across 16 categories, all cross-referenced.

2026-03-11 20:36:36 -07:00

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Core

Price transforms and fundamental building blocks. These indicators compute derived prices from OHLCV bars and serve as inputs to higher-order indicators.

Indicators

Indicator	Full Name	Description
AVGPRICE	Average Price	(O+H+L+C) * 0.25 via FMA
HA	Heikin-Ashi	Modified OHLC candles. Smoothed trend visualization. Output is TBar.
MEDPRICE	Median Price	(H+L) * 0.5
MIDBODY	Open-Close Average	(O+C) * 0.5
MIDPOINT	Rolling Midpoint	(Max+Min) * 0.5 over lookback window
MIDPRICE	Mid Price	(Highest High + Lowest Low) * 0.5
TYPPRICE	Typical Price	(H+L+C) * OneThird via FMA
WCLPRICE	Weighted Close Price	(H+L+2C) * 0.25 via FMA

Architecture

All Core indicators share common traits:

Zero allocation in Update hot path
FMA optimization where applicable (Avgprice, Typprice, Wclprice)
Multiplication over division (0.25 instead of /4, OneThird instead of /3)
NaN/Infinity guard via last-valid-value substitution
Bar correction via isNew rollback pattern
Dual API with stateful Update + stateless static Calculate
SIMD batch via ReadOnlySpan<double> / Span<double> overloads

TBar-Based vs TValue-Based

Type	Indicators	Input
TBar	AVGPRICE, MEDPRICE, MIDPRICE, MIDBODY, TYPPRICE, WCLPRICE	OHLCV bars
TValue	MIDPOINT	Single value series

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Core

Indicators

Architecture

TBar-Based vs TValue-Based

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