//------------------------------------------------------------------ #property copyright "© mladen, 2018" #property link "mladenfx@gmail.com" #property version "1.00" #property description "Parabolic weighted MA velocity" //------------------------------------------------------------------ #property indicator_separate_window #property indicator_buffers 4 #property indicator_plots 1 #property indicator_label1 "Parabolic weighted MA velocity" #property indicator_type1 DRAW_COLOR_LINE #property indicator_color1 clrDarkGray,clrDeepPink,clrLimeGreen #property indicator_width1 2 //--- input parameters input int inpPeriod = 27; // Period input double inpPower = 1; // Power input ENUM_APPLIED_PRICE inpPrice = PRICE_MEDIAN; // Price //--- indicator buffers double val[],valc[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,val,INDICATOR_DATA); SetIndexBuffer(1,valc,INDICATOR_COLOR_INDEX); //--- indicator short name assignment IndicatorSetString(INDICATOR_SHORTNAME,"Parabolic weighted MA velocity ("+(string)inpPeriod+","+(string)inpPower+")"); //--- return (INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom indicator de-initialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total,const int prev_calculated,const datetime &time[], const double &open[], const double &high[], const double &low[], const double &close[], const long &tick_volume[], const long &volume[], const int &spread[]) { if(Bars(_Symbol,_Period)0) ? (val[i]>val[i-1]) ? 2 : (val[i]=0; k++) { double weight = MathPow((period-k),power); suma += _velWork[i-k][instanceNo] * weight; sumb += _velWork[i-k][instanceNo] * weight * weight; sumwa += weight; sumwb += weight*weight; } return(sumb/sumwb-suma/sumwa); } // //--- // double getPrice(ENUM_APPLIED_PRICE tprice,const double &open[],const double &close[],const double &high[],const double &low[],int i,int _bars) { if(i>=0) switch(tprice) { case PRICE_CLOSE: return(close[i]); case PRICE_OPEN: return(open[i]); case PRICE_HIGH: return(high[i]); case PRICE_LOW: return(low[i]); case PRICE_MEDIAN: return((high[i]+low[i])/2.0); case PRICE_TYPICAL: return((high[i]+low[i]+close[i])/3.0); case PRICE_WEIGHTED: return((high[i]+low[i]+close[i]+close[i])/4.0); } return(0); } //+------------------------------------------------------------------+