-- Id: 5500 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=277 --+------------------------------------------------------------------+ --| 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 function Init() indicator:name("The Vortext Difference Indicator"); indicator:description("The indicator was described in Jan, 10 issue of the 'Stock and Commodites' Magazin"); indicator:requiredSource(core.Bar); indicator:type(core.Oscillator); indicator.parameters:addInteger("N", "Length of the vortex", "No description", 14); indicator.parameters:addColor("VID_color", "Color of VID", "Color of VID", core.rgb(0, 255, 0)); end -- Indicator instance initialization routine -- Processes indicator parameters and creates output streams local N; local first; local source = nil; -- Streams block local VID = nil; local iVIP = nil; local iVIN = nil; local iATR = nil; -- Routine function Prepare(nameOnly) local name = profile:id() .. "(" .. instance.source:name() .. ")"; instance:name(name); if (nameOnly) then return; end N = instance.parameters.N; source = instance.source; iATR = core.indicators:create("ATR", instance.source, 1); first = iATR.DATA:first() + N; VID = instance:addStream("VID", core.Line, name .. ".VID", "VID", instance.parameters.VID_color, first); VID:setPrecision(math.max(2, instance.source:getPrecision())); iVID = instance:addInternalStream(1, 0) iVIP = instance:addInternalStream(1, 0); iVIM = instance:addInternalStream(1, 0); end -- Indicator calculation routine function Update(period, mode) iATR:update(mode); if period >= 1 then iVIP[period] = math.abs(source.high[period] - source.low[period - 1]); iVIM[period] = math.abs(source.low[period] - source.high[period - 1]); end if period >= first then local svip, svim, satr; local range; range = core.rangeTo(period, N); svip = core.sum(iVIP, range); svim = core.sum(iVIM, range); satr = core.sum(iATR.DATA, range); VID[period] = svip / satr * 100 - svim / satr * 100; end end