//+------------------------------------------------------------------+ //| LWMA_MA.mq5 | //| Copyright 2018, MetaQuotes Software Corp. | //| https://mql5.com | //+------------------------------------------------------------------+ #property copyright "Copyright 2018, MetaQuotes Software Corp." #property link "https://mql5.com" #property version "1.00" #property description "LWMA/SMA ratio oscillator" #property indicator_separate_window #property indicator_buffers 4 #property indicator_plots 1 //--- plot MA #property indicator_label1 "LWMA/SMA" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrLime,clrDarkOrange,clrGainsboro #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- input parameters input uint InpPeriod = 20; // Period //--- indicator buffers double BufferDMA[]; double BufferColors[]; double BufferSMA[]; double BufferLWMA[]; //--- global variables int period; int handle_sma; int handle_lwma; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables period=int(InpPeriod<2 ? 2 : InpPeriod); //--- indicator buffers mapping SetIndexBuffer(0,BufferDMA,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); SetIndexBuffer(2,BufferLWMA,INDICATOR_CALCULATIONS); SetIndexBuffer(3,BufferSMA,INDICATOR_CALCULATIONS); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"LWMA/SMA ratio ("+(string)period+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferDMA,true); ArraySetAsSeries(BufferColors,true); ArraySetAsSeries(BufferLWMA,true); ArraySetAsSeries(BufferSMA,true); //--- create MA's handles ResetLastError(); handle_sma=iMA(NULL,PERIOD_CURRENT,period,0,MODE_SMA,PRICE_CLOSE); if(handle_sma==INVALID_HANDLE) { Print(__LINE__,": The iMA(",(string)period,") object was not created: Error ",GetLastError()); return INIT_FAILED; } handle_lwma=iMA(NULL,PERIOD_CURRENT,period,0,MODE_LWMA,PRICE_CLOSE); if(handle_lwma==INVALID_HANDLE) { Print(__LINE__,": The iMA(",(string)period,") object was not created: Error ",GetLastError()); return INIT_FAILED; } //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| 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[]) { //--- Проверка и расчёт количества просчитываемых баров if(rates_total1) { limit=rates_total-2; ArrayInitialize(BufferDMA,EMPTY_VALUE); ArrayInitialize(BufferColors,2); ArrayInitialize(BufferLWMA,0); ArrayInitialize(BufferSMA,0); } //--- Подготовка данных int count=(limit>1 ? rates_total : 1),copied=0; copied=CopyBuffer(handle_sma,0,0,count,BufferSMA); if(copied!=count) return 0; copied=CopyBuffer(handle_lwma,0,0,count,BufferLWMA); if(copied!=count) return 0; //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferDMA[i]=(BufferSMA[i]!=0 ? (BufferLWMA[i]/BufferSMA[i])-1.0 : 0); BufferColors[i]=(BufferDMA[i]>BufferDMA[i+1] ? 0 : BufferDMA[i]