-- Id: 14316 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=62321 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --+------------------------------------------------------------------+ --| Patreon : https://goo.gl/GdXWeN | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ function Init() indicator:name("Extreme TMA line indicator"); indicator:description("Extreme TMA line indicator"); indicator:requiredSource(core.Tick); indicator:type(core.Oscillator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("TMA_Period", "TMA period", "", 56); indicator.parameters:addInteger("ATR_Period", "ATR period", "", 100); indicator.parameters:addDouble("ATR_Mult", "ATR multiplier", "", 2); indicator.parameters:addDouble("TrendThreshold", "TrendThreshold", "", 0.5); indicator.parameters:addBoolean("Redraw", "Redraw", "", true); indicator.parameters:addString("Method", "Calculation Method", "Method" , "Absolute"); indicator.parameters:addStringAlternative("Method", "Absolute", "Absolute" , "Absolute"); indicator.parameters:addStringAlternative("Method", "Relative", "Relative" , "Relative"); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("TMA_NEclr", "TMA neutral Color", "TMA neutral Color", core.rgb(128, 128, 128)); indicator.parameters:addColor("TMA_UPclr", "TMA UP Color", "TMA UP Color", core.rgb(0, 255, 0)); indicator.parameters:addColor("TMA_DNclr", "TMA DN Color", "TMA DN Color", core.rgb(255, 0, 0)); indicator.parameters:addInteger("TMAwidth", "TMA width", "TMA width", 2, 1, 5); indicator.parameters:addInteger("TMAstyle", "TMA style", "TMA style", core.LINE_SOLID); indicator.parameters:setFlag("TMAstyle", core.FLAG_LINE_STYLE); indicator.parameters:addColor("Bandclr", "Band Color", "Band Color", core.rgb(128, 128, 0)); indicator.parameters:addInteger("Bandwidth", "Band width", "Band width", 1, 1, 5); indicator.parameters:addInteger("Bandstyle", "Band style", "Band style", core.LINE_DASH); indicator.parameters:setFlag("Bandstyle", core.FLAG_LINE_STYLE); end local first; local source = nil; local TMA_Period; local ATR_Period; local ATR_Mult; local TrendThreshold; local Redraw; local TMA=nil; local ATR; local Upper=nil; local Lower=nil; local Method; local Oscillator; function Prepare(nameOnly) source = instance.source; Method=instance.parameters.Method; TMA_Period=instance.parameters.TMA_Period; ATR_Period=instance.parameters.ATR_Period; ATR_Mult=instance.parameters.ATR_Mult; TrendThreshold=instance.parameters.TrendThreshold; Redraw=instance.parameters.Redraw; first = source:first()+2*TMA_Period; local name = profile:id() .. "(" .. source:name() .. ", " .. instance.parameters.TMA_Period .. ", " .. instance.parameters.ATR_Period .. ", " .. instance.parameters.ATR_Mult .. ", " .. instance.parameters.TrendThreshold .. ")"; instance:name(name); if (nameOnly) then return; end assert(core.indicators:findIndicator("TATR") ~= nil, "Please, download and install TATR.LUA indicator"); ATR=core.indicators:create("TATR", source, ATR_Period); Oscillator = instance:addStream("Oscillator", core.Bar, name .. ".Oscillator", "Oscillator", instance.parameters.TMA_NEclr, first); TMA = instance:addInternalStream(0, 0); Upper = instance:addStream("Upper", core.Line, name .. ".Upper", "Upper", instance.parameters.Bandclr, first); Lower = instance:addStream("Lower", core.Line, name .. ".Lower", "Lower", instance.parameters.Bandclr, first); TMA:setWidth(instance.parameters.TMAwidth); TMA:setStyle(instance.parameters.TMAstyle); Upper:setWidth(instance.parameters.Bandwidth); Upper:setStyle(instance.parameters.Bandstyle); Lower:setWidth(instance.parameters.Bandwidth); Lower:setStyle(instance.parameters.Bandstyle); Oscillator:setPrecision(math.max(2, instance.source:getPrecision())); Upper:setPrecision(math.max(2, instance.source:getPrecision())); Lower:setPrecision(math.max(2, instance.source:getPrecision())); end function Update(period, mode) if (period 0 do if not(LastPeriod) then ii=0; else ii=ii-1; end local Sum=0; local SumW=(TMA_Period+2)*(TMA_Period+1)/2; for i=0,TMA_Period,1 do Sum=Sum+(TMA_Period-i+1)*source[period-i]; if Redraw then if i<=source:size()-1-period and i>0 then Sum=Sum+(TMA_Period-i+1)*source[period+i]; SumW=SumW+(TMA_Period-i+1); end end end TMA[period]=Sum/SumW; local Slope=(TMA[period]-TMA[period-1])/(0.1*ATR.DATA[period]); if Slope>TrendThreshold then Oscillator:setColor(period,instance.parameters.TMA_UPclr); elseif Slope<-TrendThreshold then Oscillator:setColor(period,instance.parameters.TMA_DNclr); else Oscillator:setColor(period,instance.parameters.TMA_NEclr); end local range=ATR.DATA[period]*ATR_Mult; if Method == "Absolute" then Oscillator[period]=source[period]-TMA[period]; Upper[period]=range; Lower[period]=-range; else Oscillator[period]=(source[period]-TMA[period]) / (range/100); Upper[period]=100 Lower[period]=-100; end period=period-1; period=period-1; end end