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feat: add length->period kwargs alias across all 168 indicator functions for pandas-ta compat

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This commit is contained in:
Miha Kralj
2026-03-02 10:00:29 -08:00
parent ae7207c3d8
commit 18694e337e
16 changed files with 211 additions and 168 deletions
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python/quantalib/channels.py
+17 -17
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@@ -36,7 +36,7 @@ __all__ = [
def aberr(close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Aberration Bands."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
src, idx = _arr(close)
@@ -50,7 +50,7 @@ def aberr(close: object, period: int = 14, multiplier: float = 2.0, offset: int
def accbands(high: object, low: object, close: object, period: int = 14, factor: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Acceleration Bands."""
period = int(period)
period = int(kwargs.get("length", period))
factor = float(factor)
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
@@ -64,7 +64,7 @@ def accbands(high: object, low: object, close: object, period: int = 14, factor:
def apz(open: object, high: object, low: object, close: object, volume: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Adaptive Price Zone."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
o, idx = _arr(open); h, _ = _arr(high); l, _ = _arr(low)
@@ -79,7 +79,7 @@ def apz(open: object, high: object, low: object, close: object, volume: object,
def dchannel(high: object, low: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Donchian Channel."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low)
n = len(h)
@@ -92,7 +92,7 @@ def dchannel(high: object, low: object, period: int = 14, offset: int = 0, **kwa
def decaychannel(high: object, low: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Decay Channel."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low)
n = len(h)
@@ -105,7 +105,7 @@ def decaychannel(high: object, low: object, period: int = 14, offset: int = 0, *
def fcb(high: object, low: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Fractal Chaos Bands."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low)
n = len(h)
@@ -118,7 +118,7 @@ def fcb(high: object, low: object, period: int = 14, offset: int = 0, **kwargs)
def jbands(close: object, period: int = 14, phase: int = 0, offset: int = 0, **kwargs) -> object:
"""J-Line Bands."""
period = int(period)
period = int(kwargs.get("length", period))
phase = int(phase)
offset = int(offset)
src, idx = _arr(close)
@@ -132,7 +132,7 @@ def jbands(close: object, period: int = 14, phase: int = 0, offset: int = 0, **k
def kchannel(high: object, low: object, close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Keltner Channel."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
@@ -146,7 +146,7 @@ def kchannel(high: object, low: object, close: object, period: int = 14, multipl
def maenv(close: object, period: int = 14, percentage: float = 2.5, maType: int = 0, offset: int = 0, **kwargs) -> object:
"""Moving Average Envelope."""
period = int(period)
period = int(kwargs.get("length", period))
percentage = float(percentage)
maType = int(maType)
offset = int(offset)
@@ -161,7 +161,7 @@ def maenv(close: object, period: int = 14, percentage: float = 2.5, maType: int
def mmchannel(high: object, low: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Min-Max Channel."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low)
n = len(h)
@@ -173,7 +173,7 @@ def mmchannel(high: object, low: object, period: int = 14, offset: int = 0, **kw
def pchannel(high: object, low: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Price Channel."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low)
n = len(h)
@@ -186,7 +186,7 @@ def pchannel(high: object, low: object, period: int = 14, offset: int = 0, **kwa
def regchannel(close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Regression Channel."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
src, idx = _arr(close)
@@ -200,7 +200,7 @@ def regchannel(close: object, period: int = 14, multiplier: float = 2.0, offset:
def sdchannel(close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Standard Deviation Channel."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
src, idx = _arr(close)
@@ -214,7 +214,7 @@ def sdchannel(close: object, period: int = 14, multiplier: float = 2.0, offset:
def starchannel(high: object, low: object, close: object, period: int = 14, multiplier: float = 2.0, atrPeriod: int = 22, offset: int = 0, **kwargs) -> object:
"""Stoller Average Range Channel (STARC)."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
atrPeriod = int(atrPeriod)
offset = int(offset)
@@ -229,7 +229,7 @@ def starchannel(high: object, low: object, close: object, period: int = 14, mult
def stbands(high: object, low: object, close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""SuperTrend Bands."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
@@ -243,7 +243,7 @@ def stbands(high: object, low: object, close: object, period: int = 14, multipli
def ttm_lrc(close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""TTM Linear Regression Channel."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
src, idx = _arr(close)
n = len(src)
@@ -258,7 +258,7 @@ def ttm_lrc(close: object, period: int = 14, offset: int = 0, **kwargs) -> objec
def ubands(close: object, period: int = 14, multiplier: float = 2.0, offset: int = 0, **kwargs) -> object:
"""Upper/Lower Bands."""
period = int(period)
period = int(kwargs.get("length", period))
multiplier = float(multiplier)
offset = int(offset)
src, idx = _arr(close)