Chiến lược kết hợp đường trung bình động đảo ngược động lượng

/*backtest
start: 2023-12-01 00:00:00
end: 2023-12-31 23:59:59
period: 3h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=4
////////////////////////////////////////////////////////////
//  Copyright by HPotter v1.0 19/09/2019
// This is combo strategies for get a cumulative signal. 
//
// First strategy
// This System was created from the Book "How I Tripled My Money In The 
// Futures Market" by Ulf Jensen, Page 183. This is reverse type of strategies.
// The strategy buys at market, if close price is higher than the previous close 
// during 2 days and the meaning of 9-days Stochastic Slow Oscillator is lower than 50. 
// The strategy sells at market, if close price is lower than the previous close price 
// during 2 days and the meaning of 9-days Stochastic Fast Oscillator is higher than 50.
//
// Second strategy
//    This indicator plots average of three different length CMO's. This indicator 
//    was developed by Tushar Chande. A scientist, an inventor, and a respected 
//    trading system developer, Mr. Chande developed the CMO to capture what he 
//    calls "pure momentum". For more definitive information on the CMO and other 
//    indicators we recommend the book The New Technical Trader by Tushar Chande 
//    and Stanley Kroll.
//    The CMO is closely related to, yet unique from, other momentum oriented 
//    indicators such as Relative Strength Index, Stochastic, Rate-of-Change, etc. 
//    It is most closely related to Welles Wilder?s RSI, yet it differs in several ways:
//    - It uses data for both up days and down days in the numerator, thereby directly 
//    measuring momentum;
//    - The calculations are applied on unsmoothed data. Therefore, short-term extreme 
//    movements in price are not hidden. Once calculated, smoothing can be applied to 
//    the CMO, if desired;
//    - The scale is bounded between +100 and -100, thereby allowing you to clearly see 
//    changes in net momentum using the 0 level. The bounded scale also allows you to 
//    conveniently compare values across different securities.
//
// WARNING:
// - For purpose educate only
// - This script to change bars colors.
////////////////////////////////////////////////////////////
Reversal123(Length, KSmoothing, DLength, Level) =>
    vFast = sma(stoch(close, high, low, Length), KSmoothing) 
    vSlow = sma(vFast, DLength)
    pos = 0.0
    pos := iff(close[2] < close[1] and close > close[1] and vFast < vSlow and vFast > Level, 1,
	         iff(close[2] > close[1] and close < close[1] and vFast > vSlow and vFast < Level, -1, nz(pos[1], 0))) 
	pos

CMOav(Length1,Length2,Length3, TopBand, LowBand) =>
    pos = 0
    xMom = close - close[1]
    xMomabs = abs(close - close[1])
    nSum1 = sum(xMom, Length1)
    nSumAbs1 = sum(xMomabs, Length1)
    nSum2 = sum(xMom, Length2)
    nSumAbs2 = sum(xMomabs, Length2)
    nSum3 = sum(xMom, Length3)
    nSumAbs3 = sum(xMomabs, Length3)
    nRes = 100 * (nSum1 / nSumAbs1 + nSum2 / nSumAbs2 + nSum3 / nSumAbs3 ) / 3
    pos := iff(nRes > TopBand, 1,
    	     iff(nRes < LowBand, -1, nz(pos[1], 0))) 
    pos

strategy(title="Combo Backtest 123 Reversal & CMOav", shorttitle="Combo", overlay = true)
Length = input(14, minval=1)
KSmoothing = input(1, minval=1)
DLength = input(3, minval=1)
Level = input(50, minval=1)
//-------------------------
Length1 = input(5, minval=1)
Length2 = input(10, minval=1)
Length3 = input(20, minval=1)
TopBand = input(70, minval=1)
LowBand = input(-70, maxval=-1)
reverse = input(false, title="Trade reverse")
posReversal123 = Reversal123(Length, KSmoothing, DLength, Level)
posCMOav = CMOav(Length1,Length2,Length3, TopBand, LowBand)
pos = iff(posReversal123 == 1 and posCMOav == 1 , 1,
	   iff(posReversal123 == -1 and posCMOav == -1, -1, 0)) 
possig = iff(reverse and pos == 1, -1,
          iff(reverse and pos == -1 , 1, pos))	   
if (possig == 1) 
    strategy.entry("Long", strategy.long)
if (possig == -1)
    strategy.entry("Short", strategy.short)	 
if (possig == 0) 
    strategy.close_all()
barcolor(possig == -1 ? #b50404: possig == 1 ? #079605 : #0536b3 )