-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=9806 --+------------------------------------------------------------------+ --| 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 | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ -- Indicator profile initialization routine -- Defines indicator profile properties and indicator parameters -- TODO: Add minimal and maximal value of numeric parameters and default color of the streams function Init() indicator:name("MACD Overlay"); indicator:description("MACD Overlay"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Selector"); indicator.parameters:addString("Method", "Indicator Method", "Method" , "MACD / Zero & MACD Slope"); indicator.parameters:addStringAlternative("Method", "MACD / Zero & MACD Slope", "MACD / Zero & MACD Slope" , "MACD / Zero & MACD Slope"); indicator.parameters:addStringAlternative("Method", "MACD / Signal", "MACD / Signal" , "MACD / Signal"); indicator.parameters:addStringAlternative("Method", "Histogram/Zero & Histogram Slope", "Histogram/Zero & Histogram Slope" , "Histogram/Zero & Histogram Slope"); indicator.parameters:addStringAlternative("Method", "MACD/Signal & MACD/Zero", "MACD/Signal & MACD/Zero" , "MACD/Signal & MACD/Zero"); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("SN", "Short EMA", "", 12, 2, 1000); indicator.parameters:addInteger("LN", "Long EMA", "", 26, 2, 1000); indicator.parameters:addInteger("IN", "Signal Line", "", 9, 2, 1000); indicator.parameters:addString("Price", "Price", "", "close"); indicator.parameters:addStringAlternative("Price", "close", "", "close"); indicator.parameters:addStringAlternative("Price", "open", "", "open"); indicator.parameters:addStringAlternative("Price", "high", "", "high"); indicator.parameters:addStringAlternative("Price", "low", "", "low"); indicator.parameters:addStringAlternative("Price", "median", "", "median"); indicator.parameters:addStringAlternative("Price", "typical", "", "typical"); indicator.parameters:addStringAlternative("Price", "weighted", "", "weighted"); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("UpUp", "Up in Up Trend Histogram", "", core.rgb(0, 255, 0)); indicator.parameters:addColor("UpDown", "Down in Up Histogram", "", core.rgb(0, 200, 0)); indicator.parameters:addColor("DownDown", "Down in Down Histogram", "", core.rgb( 200,0, 0)); indicator.parameters:addColor("DownUp", "Up in Down Trend Histogram", "", core.rgb( 255,0, 0)); end -- Indicator instance initialization routine -- Processes indicator parameters and creates output streams -- TODO: Refine the first period calculation for each of the output streams. -- TODO: Calculate all constants, create instances all subsequent indicators and load all required libraries -- Parameters block local SN; local LN; local IN; local Price; local first; local source = nil; local Method; -- Streams block local MACD = nil; local UpUp, DownDown, UpDown, DownUp; local HZU = nil; local HZL = nil; local open=nil; local close=nil; local high=nil; local low=nil; -- Routine function Prepare(nameOnly) local name = profile:id() .. "(" .. instance.source:name() .. ")"; instance:name(name); if (nameOnly) then return; end Price = instance.parameters.Price; Method = instance.parameters.Method; SN = instance.parameters.SN; LN = instance.parameters.LN; IN = instance.parameters.IN; UpUp = instance.parameters.UpUp; DownDown = instance.parameters.DownDown; UpDown = instance.parameters.UpDown; DownUp = instance.parameters.DownUp; if (LN <= SN) then error("The short EMA period must be smaller than long EMA period"); end source = instance.source; MACD = core.indicators:create("MACD",source[Price], SN , LN , IN); first = MACD.SIGNAL:first(); open = instance:addStream("open", core.Line, name, "open", core.rgb(0, 0, 0), first) high = instance:addStream("high", core.Line, name, "high", core.rgb(0, 0, 0), first) low = instance:addStream("low", core.Line, name, "low", core.rgb(0, 0, 0), first) close = instance:addStream("close", core.Line, name, "close", core.rgb(0, 0, 0), first) instance:createCandleGroup("ZONE", "Overlay", open, high, low, close); end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period, mode) if period < first or not source:hasData(period) then return; end high[period]= source.high[period]; low[period]= source.low[period]; close[period] = source.close[period]; open[period] = source.open[period]; MACD:update(mode); if Method== "MACD / Zero & MACD Slope" then if MACD.MACD[period] > 0 then if MACD.MACD[period] > MACD.MACD[period-1] then open:setColor(period, UpUp); else open:setColor(period, UpDown); end else if MACD.MACD[period] > MACD.MACD[period-1] then open:setColor(period, DownUp); else open:setColor(period, DownDown); end end end if Method== "MACD / Signal" then if MACD.MACD[period] > MACD.SIGNAL[period] then open:setColor(period, UpUp); else open:setColor(period, DownDown); end end if Method== "Histogram/Zero & Histogram Slope" then if MACD.HISTOGRAM[period] > 0 then if MACD.HISTOGRAM[period] > MACD.HISTOGRAM[period-1] then open:setColor(period, UpUp); else open:setColor(period, UpDown); end else if MACD.HISTOGRAM[period] > MACD.HISTOGRAM[period-1] then open:setColor(period, DownUp); else open:setColor(period, DownDown); end end end if Method== "MACD/Signal & MACD/Zero" then if MACD.MACD[period] > MACD.SIGNAL[period] then if MACD.MACD[period] > 0 then open:setColor(period, UpUp); else open:setColor(period, UpDown ); end else if MACD.MACD[period] > 0 then open:setColor(period, DownUp); else open:setColor(period, DownDown); end end end end