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

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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/oscillators.py
+8 -8
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@@ -108,7 +108,7 @@ def coppock(close: object, longRoc: int = 14, shortRoc: int = 11, wmaPeriod: int
def eri(close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Elder Ray Index."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
src, idx = _arr(close)
n = len(src)
@@ -119,7 +119,7 @@ def eri(close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
def fi(close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Force Index."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
src, idx = _arr(close)
n = len(src)
@@ -146,7 +146,7 @@ def gator(close: object, jawPeriod: int = 13, jawShift: int = 8, teethPeriod: in
def imi(open: object, high: object, low: object, close: object, volume: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Intraday Momentum Index."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
o, idx = _arr(open); h, _ = _arr(high); l, _ = _arr(low)
c, _ = _arr(close); v, _ = _arr(volume)
@@ -215,7 +215,7 @@ def mstoch(close: object, stochLength: int = 20, hpLength: int = 48, ssLength: i
def pgo(high: object, low: object, close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Pretty Good Oscillator."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
n = len(h)
@@ -239,7 +239,7 @@ def qqe(close: object, rsiPeriod: int = 14, smoothFactor: int = 5, qqeFactor: fl
def reverseema(close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Reverse EMA."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
src, idx = _arr(close)
n = len(src)
@@ -250,7 +250,7 @@ def reverseema(close: object, period: int = 14, offset: int = 0, **kwargs) -> ob
def rvgi(open: object, high: object, low: object, close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Relative Vigor Index."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
o, idx = _arr(open); h, _ = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
n = len(o)
@@ -277,7 +277,7 @@ def smi(high: object, low: object, close: object, kPeriod: int = 14, kSmooth: in
def squeeze(high: object, low: object, close: object, period: int = 14, bbMult: float = 2.0, kcMult: float = 1.5, offset: int = 0, **kwargs) -> object:
"""Squeeze Momentum."""
period = int(period)
period = int(kwargs.get("length", period))
bbMult = float(bbMult)
kcMult = float(kcMult)
offset = int(offset)
@@ -369,7 +369,7 @@ def ultosc(high: object, low: object, close: object, period1: int = 14, period2:
def willr(high: object, low: object, close: object, period: int = 14, offset: int = 0, **kwargs) -> object:
"""Williams %R."""
period = int(period)
period = int(kwargs.get("length", period))
offset = int(offset)
h, idx = _arr(high); l, _ = _arr(low); c, _ = _arr(close)
n = len(h)