-- Id: 8264 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=28055 --+------------------------------------------------------------------+ --| 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("Trend Intensity Index "); indicator:description("Trend Intensity Index "); indicator:requiredSource(core.Tick); indicator:type(core.Oscillator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Period", "Period", "Period", 30); indicator.parameters:addInteger("MAPeriod", "Ma Period", "Period", 60); indicator.parameters:addString("Method", "MA Method", "Method" , "MVA"); indicator.parameters:addStringAlternative("Method", "MVA", "MVA" , "MVA"); indicator.parameters:addStringAlternative("Method", "EMA", "EMA" , "EMA"); indicator.parameters:addStringAlternative("Method", "LWMA", "LWMA" , "LWMA"); indicator.parameters:addStringAlternative("Method", "TMA", "TMA" , "TMA"); indicator.parameters:addStringAlternative("Method", "SMMA", "SMMA" , "SMMA"); indicator.parameters:addStringAlternative("Method", "KAMA", "KAMA" , "KAMA"); indicator.parameters:addStringAlternative("Method", "VIDYA", "VIDYA" , "VIDYA"); indicator.parameters:addStringAlternative("Method", "WMA", "WMA" , "WMA"); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("TII_color", "Color of TII", "Color of TII", core.rgb(255, 0, 0)); indicator.parameters:addInteger("width", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style", core.FLAG_LINE_STYLE); indicator.parameters:addGroup("OB/OS Levels"); indicator.parameters:addDouble("overbought", "Overbought Level","", 80); indicator.parameters:addDouble("oversold","Oversold Level","", 20); indicator.parameters:addColor("level_overboughtsold_color", "Line Color","", core.rgb(128, 128, 128)); indicator.parameters:addInteger("level_overboughtsold_width","Line width","", 1, 1, 5); indicator.parameters:addInteger("level_overboughtsold_style", "Line Style","", core.LINE_SOLID); indicator.parameters:setFlag("level_overboughtsold_style", core.FLAG_LEVEL_STYLE); 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 MAPeriod; local Period; local Method; local first; local source = nil; local MA; local Up, Down; -- Streams block local TII = nil; -- Routine function Prepare(nameOnly) MAPeriod = instance.parameters.MAPeriod; Method = instance.parameters.Method; Period = instance.parameters.Period; source = instance.source; local name = profile:id() .. "(" .. source:name() .. ", " .. tostring(Period) .. ", " .. tostring(MAPeriod) .. ", " .. tostring(Method).. ")"; instance:name(name); if (not (nameOnly)) then assert(core.indicators:findIndicator(Method) ~= nil, Method .. " indicator must be installed"); MA = core.indicators:create(Method, source, MAPeriod); first = MA.DATA:first(); Up = instance:addInternalStream(first, 0); Down = instance:addInternalStream(first, 0); TII = instance:addStream("TII", core.Line, name, "TII", instance.parameters.TII_color, first +Period); TII:setPrecision(math.max(2, instance.source:getPrecision())); TII:setWidth(instance.parameters.width); TII:setStyle(instance.parameters.style); TII:addLevel(instance.parameters.oversold, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color); TII:addLevel(instance.parameters.overbought, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color); end end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period, mode) MA:update(mode); if period < first then return; end if source[period] > MA.DATA[period] then Up[period]= source[period] - MA.DATA[period]; Down[period]=0; elseif source[period] < MA.DATA[period] then Up[period]=0; Down[period]= MA.DATA[period] - source[period]; end if period < first +Period then return; end local POS=mathex.sum (Up, period-Period+1, period); local NEG=mathex.sum (Down, period-Period+1, period); TII[period] = 100 * (POS) / (POS + NEG) end