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https://github.com/mihakralj/QuanTAlib.git
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Miha Kralj
24e86d762a
- Updated BBWN, BBWP, CCV, CV, CVI, EWMA, GKV, HLV, HV, Jvolty, JVOLTYN, MASSI, NATR, RSV, RV, RVI, TR, UI, VOV, VR, YZV indicators with documentation links. - Added documentation links for Aberration, Acceleration Bands, Andrews' Pitchfork, Adaptive Price Zone, ATR Bands, Bollinger Bands, Center of Gravity, Donchian Channels, Decay Min-Max Channel, Detrended Synthetic Price, EACP, EBSW, HOMOD, Jurik Volatility Bands, Keltner Channel, MA Envelope, Min-Max Channel, Price Channel, Regression Channels, Standard Deviation Channel, Stoller Average Range Channel, Super Trend Bands, Ultimate Bands, Ultimate Channel, VWAP Bands, and VWAP with Standard Deviation Bands.
67 lines
2.3 KiB
Plaintext
67 lines
2.3 KiB
Plaintext
// The MIT License (MIT)
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// © mihakralj
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//@version=6
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indicator("Accelerator Oscillator (AC)", "AC", overlay=false)
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//@function Calculates Bill Williams' Accelerator Oscillator
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//@param fastLength Period for fast MA calculation
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//@param slowLength Period for slow MA calculation
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//@returns AC value measuring acceleration/deceleration of market momentum
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ac(simple int fastLength, simple int slowLength) =>
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if fastLength <= 0 or slowLength <= 0
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runtime.error("Lengths must be greater than 0")
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if fastLength >= slowLength
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runtime.error("Fast length must be less than slow length")
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float mp = (high + low) / 2.0
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var array<float> fastBuf = array.new_float(fastLength, na)
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var array<float> slowBuf = array.new_float(slowLength, na)
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var int fastHead = 0, var int slowHead = 0
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var float fastSum = 0.0, var float slowSum = 0.0
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var int fastCount = 0, var int slowCount = 0
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float fastOldest = array.get(fastBuf, fastHead)
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if not na(fastOldest)
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fastSum -= fastOldest
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fastCount -= 1
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if not na(mp)
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fastSum += mp
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fastCount += 1
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array.set(fastBuf, fastHead, mp)
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fastHead := (fastHead + 1) % fastLength
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float slowOldest = array.get(slowBuf, slowHead)
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if not na(slowOldest)
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slowSum -= slowOldest
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slowCount -= 1
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if not na(mp)
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slowSum += mp
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slowCount += 1
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array.set(slowBuf, slowHead, mp)
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slowHead := (slowHead + 1) % slowLength
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float fastMA = fastCount > 0 ? fastSum / fastCount : na
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float slowMA = slowCount > 0 ? slowSum / slowCount : na
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float ao = fastMA - slowMA
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var array<float> acBuf = array.new_float(5, na)
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var int acHead = 0, var float acSum = 0.0, var int acCount = 0
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float acOldest = array.get(acBuf, acHead)
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if not na(acOldest)
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acSum -= acOldest
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acCount -= 1
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if not na(ao)
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acSum += ao
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acCount += 1
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array.set(acBuf, acHead, ao)
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acHead := (acHead + 1) % 5
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float aoSMA = acCount > 0 ? acSum / acCount : na
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ao - aoSMA
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// ---------- Main loop ----------
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// Inputs
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i_fastLength = input.int(5, "Fast Length", minval=1)
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i_slowLength = input.int(34, "Slow Length", minval=1)
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// Calculation
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ac_value = ac(i_fastLength, i_slowLength)
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// Plot
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plot(ac_value, "AC", ac_value >= 0 ? color.green : color.red, linewidth=2)
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