TAlib (TAlib v0.13.0)

Technical analysis library for Elixir.

Conventions

• Prices are always given in chronological order, oldest price first. Series functions (TAlib.Indicators.MA.sma_list/2, TAlib.Indicators.RSI.rsi_list/2, ...) return results aligned with the input list, nil-padded while the lookback window fills up; scalar functions return the value at the latest point.
• Bar-based indicators (TAlib.Indicators.ATR, TAlib.Indicators.ADX, TAlib.Indicators.CCI, TAlib.Indicators.Keltner, TAlib.Indicators.Donchian, TAlib.Indicators.MFI, TAlib.Indicators.OBV, TAlib.Indicators.VWAP) take maps with the keys they need — %{high: , low: , close: } plus %{volume: } for volume-based ones; extra keys are ignored.
• Lookback periods must be positive integers; any other value raises ArgumentError.
• Functions return nil — never 0 — when there is not enough data, since 0 is a legitimate reading for several indicators.
• For live feeds, several modules also expose streaming state: init warms up from history (one pass, returning the same series as the batch function plus the opaque state) and next advances one bar in O(1) — the streamed series continues the batch series exactly.