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发表于 2020-9-23 10:46:48
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- // This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
- // © seedof
- //@version=4
- study("SMA EMA", overlay=true)
- moveBar = input(defval=0,title="Adjust all MA range",type=input.integer)
- x = input(defval=20,title="short MA",type=input.integer)+moveBar
- y = input(defval=60,title="middle MA",type=input.integer)+moveBar
- z = input(defval=120,title="long MA",type=input.integer)+moveBar
- //slope line with arrow
- SwitchArrow=input(defval=true,title="Arrow for Deduction vs Close",type=input.bool)
- SwitchY=SwitchArrow?1:-1
- xArrow = (close>close[x]) ? line.style_arrow_left: line.style_arrow_right
- yArrow = (close>close[y]) ? line.style_arrow_left: line.style_arrow_right
- zArrow = (close>close[z]) ? line.style_arrow_left: line.style_arrow_right
- slopeS = (SwitchY>0)? line.new(bar_index, close, bar_index[x], close[x], width = 4,color=color.black, style = xArrow) : line.new(bar_index, close, bar_index[x], close[x], width = 4,color=color.black)
- line.delete(slopeS[1])
- slopeM = (SwitchY>0)? line.new(bar_index, close, bar_index[y], close[y], width = 4,color=color.orange, style = yArrow): line.new(bar_index, close, bar_index[y], close[y], width = 4,color=color.orange)
- line.delete(slopeM[1])
- slopeL = (SwitchY>0)? line.new(bar_index, close, bar_index[z], close[z], width = 4,color=color.blue, style = zArrow): line.new(bar_index, close, bar_index[z], close[z], width = 4,color=color.blue)
- line.delete(slopeL[1])
- //price label
- l1 = label.new(bar_index-x, na, tostring(x)+'MA '+tostring(close[x],'#.##'),
- color=color.black,
- size=size.huge,
- textcolor=color.white,
- style=close[x] > open[x] ? label.style_labeldown : label.style_labelup,
- yloc=close[x] > open[x] ? yloc.abovebar : yloc.belowbar
- )
- label.delete(l1[1])
- l2 = label.new(bar_index-y, na, tostring(y)+'MA '+tostring(close[y],'#.##'),
- color=color.orange,
- size=size.huge,
- textcolor=color.white,
- style=close[y] > open[y] ? label.style_labeldown : label.style_labelup,
- yloc=close[y] > open[y] ? yloc.abovebar : yloc.belowbar
- )
- label.delete(l2[1])
- l3 = label.new(bar_index-z, na, tostring(z) +'MA '+tostring(close[z],'#.##'),
- color=color.blue,
- size=size.huge,
- textcolor=color.white,
- style=close[z] > open[z] ? label.style_labeldown : label.style_labelup,
- yloc=close[z] > open[z] ? yloc.abovebar : yloc.belowbar
- )
- label.delete(l3[1])
- //MA line
- e1=ema(close,x)
- c1=sma(close,x)
- e2=ema(close,y)
- c2=sma(close,y)
- e3=ema(close,z)
- c3=sma(close,z)
- plot(e1,"emaX",color=color.gray)
- plot(c1,"maX",color=color.black, linewidth = 3)
- plot(e2,"emaY",color=#FDBCB4)
- plot(c2,"maY",color=color.red, linewidth = 3)
- plot(e3,"emaZ",color=#ADD8E6)
- plot(c3,"maZ",color=color.blue, linewidth = 3)
- //color dot for price
- cond=barstate.islast
- dot1 = plot(cond?close[x]:na,color=color.black,linewidth=5,offset=-x,style=plot.style_circles,transp=0)
- dot2 = plot(cond?close[y]:na,color=color.red,linewidth=5,offset=-y,style=plot.style_circles,transp=0)
- dot3 = plot(cond?close[z]:na,color=color.blue,linewidth=5,offset=-z,style=plot.style_circles,transp=0)
- //////////////////////
- /// ///
- /// 短期趋势转折 ///
- /// ///
- ////////////////////// 注：与雷公的显示不同，逻辑为 前一天或者当天,这两天的 EMA拐头 和 SMA拐头，任意一对判断组合互相验证了，就代表短期趋势出现，并以下跌为优先判断
- Switch=input(defval=true,title="MA strategy Barcolor",type=input.bool)
- SwitchX=Switch?1:-1
- Switchbg=input(defval=true,title="Trend Background Color",type=input.bool)
- Switchbackg=Switchbg?1:-1
- //calculate the multiplier for smoothing (weighting) the EMA, which typically follows the formula: [2 ÷ (number of observations + 1)]. For a 20-day moving average, the multiplier would be [2/(20+1)]= 0.0952.
- //Finally, the following formula is used to calculate the current EMA:EMA = Closing price x multiplier + EMA (previous day) x (1-multiplier)
- //So if EMA(today) > EMA (previous day) then you can consider EMA(today) = EMA (previous day) * (1+x) and x>0
- //EMA(today) = Closing price * multiplier + EMA (previous day) * (1-multiplier)
- //EMA (previous day) * (1+x) = Closing price * multiplier + EMA (previous day) * (1-multiplier)
- //EMA (previous day) *(x+multiplier) = Closing price* multiplier
- //if Closing price> EMA (previous day) then Closing price = EMA (previous day) * (1+y) and y>0
- //EMA (previous day) *(x+multiplier) = EMA (previous day) * (1+y)* multiplier
- //x+multiplier = multiplier + y*multiplier
- //x/multiplier (+1) = (1+) y
- //x>0 <==> y>0
- // EMA(today) > EMA (previous day) <==> Closing price> EMA (previous day)
- smaxUp = close>close[x]
- smayUp = close>close[y]
- smazUp = close>close[z]
- smaxDown = close<close[x]
- smayDown = close<close[y]
- smazDown = close<close[z]
- emaxUp = close>ema(close[1],x)
- emayUp = close>ema(close[1],y)
- emazUp = close>ema(close[1],z)
- emaxDown = close<ema(close[1],x)
- emayDown = close<ema(close[1],y)
- emazDown = close<ema(close[1],z)
- cs=(close-ema(close,x))/ema(close,x)*100 // divergence use ema
- sm=(ema(close,x)-ema(close,y))/ema(close,y)*100
- ml=(ema(close,y)-ema(close,z))/ema(close,z)*100
- cm=(close-ema(close,y))/ema(close,y)*100
- cl=(close-ema(close,z))/ema(close,z)*100
- sl=(ema(close,x)-ema(close,z))/ema(close,z)*100
- longlinerowsm = ema(close,x)>ema(close,y) // use ema response faster, sma delay too much
- longlinerowml = ema(close,y)>ema(close,z)
- longlinerowsml = longlinerowsm and longlinerowml
- shortlinerowsm = ema(close,x)<ema(close,y)
- shortlinerowml = ema(close,y)<ema(close,z)
- shortlinerowsml = shortlinerowsm and shortlinerowml
- bgcolor((longlinerowml and Switchbackg >0) ? color.aqua : na,transp=75)
- bgcolor((longlinerowsml and Switchbackg >0) ? color.white : na,transp=55) // where top will occur
- bgcolor((shortlinerowml and Switchbackg >0) ? color.black : na,transp=75)
- bgcolor((shortlinerowsml and Switchbackg >0)? color.gray : na,transp=75) // where bottom will occur
- ConBlack = (smaxDown or smaxDown[1]) and (emaxDown or emaxDown[1]) //Black and Aqua is a short term indicator
- ConAqua = not ConBlack and (smaxUp or smaxUp[1]) and (emaxUp or emaxUp[1])
- //ConBlack = smaxDown and (emaxDown or emaxDown[1])
- //ConBlack = close<close[x] and close[1]<ema(close[1],x)
- //ConBlack = low<max(high[x],high[x-1]) and close<(ema(low,x))
- //ConBlack = low<max(high[x],high[x-1]) and (close[1]<ema(close[1],x) or close<ema(close,x))
- //ConBlack = close<close[x] and (close[1]<ema(close[1],x) or close<ema(close,x))
- //ConAqua = close[1]>close[x+1] and close>ema(close,x)
- //ConAqua = high>min(low[x-1],low[x]) and close>ema(high,x)
- //ConAqua = not ConBlack and (emaxUp[1] or emaxUp) and (smaxUp or smaxUp[1])
- //ConAqua = not ConBlack and (smaxUp[1] or smaxUp) and emaxUp
- //ConAqua = not ConBlack and (close[1]>close[x+1] or close>close[x]) and high>ema(close,x)
- //ConAqua = not ConBlack and (close[1]>close[x+1] or close>close[y]) and high>ema(close,x)
- //ConAqua = not ConBlack and ((close[1]>close[x+1] and close<sma(close,y)) or ((close>close[y])and close>sma(close,y))) and high>ema(close,x)
- ConGray = not (ConAqua or ConBlack)
- ChangeColorGray = (ConGray and SwitchX>0) ? color.silver:na
- ChangeColorAqua = (ConAqua and SwitchX>0) ? color.aqua:na
- ChangeColorBlack = (ConBlack and SwitchX>0) ? color.black:na
- barcolor(ChangeColorAqua,editable=false)
- barcolor(ChangeColorBlack,editable=false)
- barcolor(ChangeColorGray,editable=false)
- // Gap
- SwitchG=input(defval=false,title="Gap",type=input.bool)
- SwitchGap=SwitchG?1:-1
- Up1 = (low>high[1] and SwitchGap>0) ?line.new(bar_index,low,bar_index[1],high[1],extend=extend.none,color=color.navy,width=3):na
- Up2 = (low>high[1] and SwitchGap>0) ?line.new(bar_index,high[1],bar_index[1],low,extend=extend.none,color=color.navy,width=3):na
- Down1 = (high<low[1] and SwitchGap>0) ?line.new(bar_index,high,bar_index[1],low[1],extend=extend.none,color=color.navy,width=3):na
- Down2 = (high<low[1] and SwitchGap>0) ?line.new(bar_index,low[1],bar_index[1],high,extend=extend.none,color=color.navy,width=3):na
- // Credit
- GLlabel=label.new(x=bar_index,y=close,text="均线系统\n\n "+"感谢LEI & LoneCapital\n\n"+"感谢jchang274" ,
- style=label.style_label_left,
- color=color.new(color.yellow,transp=100),
- textcolor=color.new(color.silver,transp=50),
- size=size.large)
- label.delete(GLlabel[1])
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发表于 2020-9-23 10:44:24
