-- Id: 1510 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=2071 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Patreon : https://goo.gl/GdXWeN | --| Paypal : https://goo.gl/9Rj74e | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash : 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ function Init() indicator:name("SMI indicator"); indicator:description("SMI indicator"); indicator:requiredSource(core.Bar); indicator:type(core.Oscillator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Period_Q", "Period_Q", "Period_Q", 2); indicator.parameters:addInteger("Period_R", "Period_R", "Period_R", 8); indicator.parameters:addInteger("Period_S", "Period_S", "Period_S", 5); indicator.parameters:addInteger("Period_Signal", "Period_Signal", "Period_Signal", 5); indicator.parameters:addString("Method", "MA Method", "Method" , "EMA"); 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("DATAclr", "Color of DATA line", "Color of DATA line", core.rgb(0, 255, 0)); indicator.parameters:addInteger("width1", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style1", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style1", core.FLAG_LINE_STYLE); indicator.parameters:addColor("SIGNALclr", "Color of SIGNAL line", "Color of SIGNAL line", core.rgb(255, 0, 0)); indicator.parameters:addInteger("width2", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style2", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style2", core.FLAG_LINE_STYLE); indicator.parameters:addGroup("OB/OS Levels"); indicator.parameters:addDouble("overbought", "Overbought Level","", 40); indicator.parameters:addDouble("oversold","Oversold Level","", -40); 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 local first; local source = nil; local Period_Q; local Period_R; local Period_S; local Period_Signal; local HQ; local SM; local HQ_MA_R; local HQ_MA_S; local SM_MA_R; local SM_MA_S; local sig; local Method; local SignalBuff; local DataBuff; function Prepare(nameOnly) source = instance.source; Method=instance.parameters.Method; Period_Q=instance.parameters.Period_Q; Period_R=instance.parameters.Period_R; Period_S=instance.parameters.Period_S; Period_Signal=instance.parameters.Period_Signal; first = source:first(); local name = profile:id() .. "(" .. source:name() .. ", " .. instance.parameters.Period_Q .. ", " .. instance.parameters.Period_R .. ", " .. instance.parameters.Period_S .. ", " .. instance.parameters.Period_Signal .. ", " .. instance.parameters.Method.. ")"; instance:name(name); if nameOnly then return; end HQ = instance:addInternalStream(0, 0); SM = instance:addInternalStream(0, 0); assert(core.indicators:findIndicator(Method) ~= nil, Method .. " indicator must be installed"); HQ_MA_R = core.indicators:create(Method, HQ, Period_R); HQ_MA_S = core.indicators:create(Method, HQ_MA_R.DATA, Period_S); SM_MA_R = core.indicators:create(Method, SM, Period_R); SM_MA_S = core.indicators:create(Method, SM_MA_R.DATA, Period_S); DataBuff = instance:addStream("DataBuff", core.Line, name .. ".Data", "Data", instance.parameters.DATAclr, math.max(SM_MA_S.DATA:first(),HQ_MA_S.DATA:first())); DataBuff:setWidth(instance.parameters.width1); DataBuff:setStyle(instance.parameters.style1); DataBuff:setPrecision (2); sig = core.indicators:create("EMA", DataBuff, Period_Signal); SignalBuff = instance:addStream("SignalBuff", core.Line, name .. ".Signal", "Signal", instance.parameters.SIGNALclr, sig.DATA:first()); SignalBuff:setWidth(instance.parameters.width2); SignalBuff:setStyle(instance.parameters.style2); SignalBuff:addLevel(instance.parameters.oversold, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color); SignalBuff:addLevel(instance.parameters.overbought, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color); SignalBuff:addLevel(0, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color); SignalBuff:setPrecision (2); end function Update(period, mode) if period<=first+Period_Q then return; end HQ[period]=core.max(source.high,core.rangeTo(period,Period_Q))-core.min(source.low,core.rangeTo(period,Period_Q)); SM[period]=source.close[period]-(core.max(source.high,core.rangeTo(period,Period_Q))+core.min(source.low,core.rangeTo(period,Period_Q)))/2.; HQ_MA_R:update(mode); HQ_MA_S:update(mode); SM_MA_R:update(mode); SM_MA_S:update(mode); if period <= SM_MA_S.DATA:first() or period <= HQ_MA_S.DATA:first() then return; end DataBuff[period]=100.*SM_MA_S.DATA[period]/(0.5*HQ_MA_S.DATA[period]); sig:update(mode); if period <= sig.DATA:first()then return; end SignalBuff[period]=sig.DATA[period]; end