ChaoZhang
本策略利用自适应零滞后EMA指标进行趋势判断和交易信号产生。该EMA指标可动态调整参数,有效消除滞后问题。属于典型的趋势跟踪交易策略。
策略原理:
计算自适应零滞后EMA指标,包含余弦法和I-Q法两种自适应算法。
EMA为正常EMA指标,EC为自适应零滞后EMA。
当EC上穿EMA时做多,EC下穿EMA时做空。
计算误差曲线,设定阈值过滤假信号。
设置固定止损止盈点数,以锁定收益和控制风险。
该策略的优势:
自适应EMA可有效减小指标滞后。
阈值过滤提高信号质量,避免假突破。
止损止盈方式简单实用,易于操作。
该策略的风险:
自适应EMA参数不稳定,存在失效的可能。
固定止损止盈难以适应市场的变化。
无法限制单笔亏损大小,存在较大损失风险。
总之,该策略采用自适应EMA指标进行趋势跟踪,可在一定程度上减小滞后问题,但需要关注参数稳定性,并配合优化的止损止盈机制以控制风险。
策略源码
/*backtest
start: 2023-09-05 00:00:00
end: 2023-09-12 00:00:00
period: 2h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=3
strategy(title="Adaptive Zero Lag EMA v2 (w/ Backtest Date Range)", shorttitle="AZLEMA", overlay = true, commission_type=strategy.commission.cash_per_contract, slippage = 5, pyramiding=1, calc_on_every_tick=true)
src = input(title="Source", defval=close)
secType = input(title="Security Type", options=["Forex", "Metal Spot", "Cryptocurrency","Custom"], defval="Forex")
contracts = input(title="Custom # of Contracts", defval=1, step=1)
limit = input(title="Max Lots", defval=100)
Period = input(title="Period", defval = 20)
adaptive = input(title="Adaptive Method", options=["Off", "Cos IFM", "I-Q IFM", "Average"], defval="Cos IFM")
GainLimit = input(title="Gain Limit", defval = 8)
Threshold = input(title="Threshold", defval=0.05, step=0.01)
fixedSL = input(title="SL Points", defval=70)
fixedTP = input(title="TP Points", defval=10)
risk = input(title='Risk', defval=0.01, step=0.01)
// === INPUT BACKTEST RANGE ===
FromMonth = input(defval = 1, title = "From Month", minval = 1, maxval = 12)
FromDay = input(defval = 1, title = "From Day", minval = 1, maxval = 31)
FromYear = input(defval = 2019, title = "From Year", minval = 2015)
ToMonth = input(defval = 1, title = "To Month", minval = 1, maxval = 12)
ToDay = input(defval = 1, title = "To Day", minval = 1, maxval = 31)
ToYear = input(defval = 9999, title = "To Year", minval = 2015)
// === FUNCTION EXAMPLE ===
start = timestamp(FromYear, FromMonth, FromDay, 00, 00) // backtest start window
finish = timestamp(ToYear, ToMonth, ToDay, 23, 59) // backtest finish window
window() => true
range = 50 //input(title="Max Period", defval=60, minval=8, maxval=100)
PI = 3.14159265359
lenIQ = 0.0
lenC = 0.0
//##############################################################################
//I-Q IFM
//##############################################################################
if(adaptive=="I-Q IFM" or adaptive=="Average")
imult = 0.635
qmult = 0.338
inphase = 0.0
quadrature = 0.0
re = 0.0
im = 0.0
deltaIQ = 0.0
instIQ = 0.0
V = 0.0
P = src - src[7]
inphase := 1.25*(P[4] - imult*P[2]) + imult*nz(inphase[3])
quadrature := P[2] - qmult*P + qmult*nz(quadrature[2])
re := 0.2*(inphase*inphase[1] + quadrature*quadrature[1]) + 0.8*nz(re[1])
im := 0.2*(inphase*quadrature[1] - inphase[1]*quadrature) + 0.8*nz(im[1])
if (re!= 0.0)
deltaIQ := atan(im/re)
for i=0 to range
V := V + deltaIQ[i]
if (V > 2*PI and instIQ == 0.0)
instIQ := i
if (instIQ == 0.0)
instIQ := nz(instIQ[1])
lenIQ := 0.25*instIQ + 0.75*nz(lenIQ[1])
//##############################################################################
//COSINE IFM
//##############################################################################
if(adaptive == "Cos IFM" or adaptive == "Average")
s2 = 0.0
s3 = 0.0
deltaC = 0.0
instC = 0.0
v1 = 0.0
v2 = 0.0
v4 = 0.0
v1 := src - src[7]
s2 := 0.2*(v1[1] + v1)*(v1[1] + v1) + 0.8*nz(s2[1])
s3 := 0.2*(v1[1] - v1)*(v1[1] - v1) + 0.8*nz(s3[1])
if (s2 != 0)
v2 := sqrt(s3/s2)
if (s3 != 0)
deltaC := 2*atan(v2)
for i = 0 to range
v4 := v4 + deltaC[i]
if (v4 > 2*PI and instC == 0.0)
instC := i - 1
if (instC == 0.0)
instC := instC[1]
lenC := 0.25*instC + 0.75*nz(lenC[1])
if (adaptive == "Cos IFM")
Period := round(lenC)
if (adaptive == "I-Q IFM")
Period := round(lenIQ)
if (adaptive == "Average")
Period := round((lenC + lenIQ)/2)
//##############################################################################
//ZERO LAG EXPONENTIAL MOVING AVERAGE
//##############################################################################
LeastError = 1000000.0
EC = 0.0
Gain = 0.0
EMA = 0.0
Error = 0.0
BestGain = 0.0
alpha =2/(Period + 1)
EMA := alpha*src + (1-alpha)*nz(EMA[1])
for i = -GainLimit to GainLimit
Gain := i/10
EC := alpha*(EMA + Gain*(src - nz(EC[1]))) + (1 - alpha)*nz(EC[1])
Error := src - EC
if(abs(Error)<LeastError)
LeastError := abs(Error)
BestGain := Gain
EC := alpha*(EMA + BestGain*(src - nz(EC[1]))) + (1-alpha)*nz(EC[1])
plot(EC, title="EC", color=orange, linewidth=2)
plot(EMA, title="EMA", color=red, linewidth=2)
//##############################################################################
//Trade Logic & Risk Management
//##############################################################################
buy = crossover(EC,EMA) and 100*LeastError/src > Threshold
sell = crossunder(EC,EMA) and 100*LeastError/src > Threshold
secScaler = secType == "Forex" ? 100000 : secType == "Metal Spot" ? 100 : secType == "Cryptocurrency" ? 10000 : secType == "Custom" ? contracts : 0
strategy.initial_capital = 50000
balance = strategy.initial_capital + strategy.netprofit
if (time>timestamp(2016, 1, 1 , 0, 0) and balance > 0)
//LONG
lots = ((risk * balance)/fixedSL)*secScaler
lots := lots > limit * secScaler ? limit * secScaler : lots
strategy.entry("BUY", strategy.long, oca_name="BUY", when=buy and window())
strategy.exit("B.Exit", "BUY", qty_percent = 100, loss=fixedSL, trail_offset=15, trail_points=fixedTP)
//SHORT
strategy.entry("SELL", strategy.short, oca_name="SELL",when=sell and window())
strategy.exit("S.Exit", "SELL", qty_percent = 100, loss=fixedSL, trail_offset=15, trail_points=fixedTP)