-- Id: 11123 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=60294 --+------------------------------------------------------------------+ --| 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 | --+------------------------------------------------------------------+ function Init() indicator:name("Ticks Volume Indicator Histogram "); indicator:description("Ticks Volume Indicator Histogram"); indicator:requiredSource(core.Bar); indicator:type(core.Oscillator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("r", "First Smoothing", "r", 12); indicator.parameters:addInteger("s", "Second Smoothing", "", 12); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("Up", "Up Color", "Up Color", core.rgb(0, 255, 0)); indicator.parameters:addColor("Down", "Down Color", "Down Color", core.rgb(255, 0, 0)); end local first; local source = nil; local Histogram; local r; local s; local FIRST; local TVI = nil; local UpTicks, DownTicks local EMA_UpTicks, DEMA_UpTicks; local EMA_DownTicks, DEMA_DownTicks; function Prepare(nameOnly) local name = profile:id() .. "(" .. instance.source:name() .. ")"; instance:name(name); if (nameOnly) then return; end source = instance.source; r = instance.parameters.r; s = instance.parameters.s; source = instance.source; first = source:first(); UpTicks= instance:addInternalStream(first, 0); DownTicks= instance:addInternalStream(first, 0); EMA_UpTicks=core.indicators:create("EMA",UpTicks , r); EMA_DownTicks=core.indicators:create("EMA",DownTicks , r); DEMA_UpTicks= core.indicators:create("EMA",EMA_UpTicks.DATA , r); DEMA_DownTicks=core.indicators:create("EMA",EMA_DownTicks.DATA , r); FIRST= DEMA_UpTicks.DATA:first(); TVI = instance:addInternalStream(source:first() + 1, 0); Histogram = instance:addStream("Histogram", core.Bar, name .. "Histogram", "Histogram", instance.parameters.Up, first); Histogram:setPrecision(math.max(2, instance.source:getPrecision())); Histogram:addLevel(0, core.LINE_NONE , 1, core.rgb(128, 128, 128)); Histogram:addLevel(1, core.LINE_NONE , 1, core.rgb(128, 128, 128)); end function Update(period, mode) Histogram[period]=1; if period < first or not source:hasData(period) then return; end Calculate(period, mode); if TVI[period]> TVI[period-1] then Histogram:setColor(period, instance.parameters.Up); else Histogram:setColor(period, instance.parameters.Down); end end function Calculate(period, mode) UpTicks[period]=(source.volume[period]+(source.close[period]-source.open[period])/source:pipSize())/2; DownTicks[period]=source.volume[period]-UpTicks[period]; EMA_UpTicks:update(mode); DEMA_UpTicks:update(mode); EMA_DownTicks:update(mode); DEMA_DownTicks:update(mode); if period < FIRST then return; end TVI[period] =100.0*(DEMA_UpTicks.DATA[period]-DEMA_DownTicks.DATA[period])/(DEMA_UpTicks.DATA[period]+DEMA_DownTicks.DATA[period]); end