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ON an EA (not for trading but only for reading buffers) which has a function SearchZigZagExtremums
I want this function to be converted into multi symbols multi period
below is my attempt to modify the free program which is available in mql codebase
//+------------------------------------------------------------------+ //| ZigZag EA(barabashkakvn's edition).mq5 | //| Copyright © 2009, Tokman Yuriy | //| yuriytokman@gmail.com | //+------------------------------------------------------------------+ #property copyright "Copyright © 2009, Tokman Yuriy" #property link "yuriytokman@gmail.com" #property version "1.002" //--- input parameters input string ____1___ = "Настройки индикатора ZigZag"; input int ExtDepth = 12; // Depth input int ExtDeviation = 5; // Deviation input int ExtBackstep = 3; // Backstep //--- //--- int handle_iCustom; // variable for storing the handle of the iCustom indicator #define RESET 0 int min_rates_total; int symbolCount; string symbolsList[]; //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- min_rates_total=100; //--- indicator buffers mapping symbolCount=SymbolsTotal(true); if( ArrayResize(symbolsList, symbolCount) < symbolCount ) return (INIT_FAILED); //--- create handle of the indicator iCustom for(int i=0; i<symbolCount; i++) { symbolsList[i] = SymbolName(i,true); handle_iCustom=iCustom(symbolsList[i],Period(),"Examples\\ZigZag"); //--- if the handle is not created if(handle_iCustom==INVALID_HANDLE) { //--- tell about the failure and output the error code PrintFormat("Failed to create handle of the iCustom indicator for the symbol %s/%s, error code %d", symbolsList[i], EnumToString(Period()), GetLastError()); //--- the indicator is stopped early return(INIT_FAILED); } } //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- //--- for(int j=0; j<symbolCount; j++) { symbolsList[j] = SymbolName(j,true); double array_results[]; if(!SearchZigZagExtremums(4,array_results)) return; double high=0.0,low=0.0; double room_0 = array_results[0]; // index 0 double room_1 = array_results[1]; // index 1 double room_2 = array_results[2]; // index 2 double room_3 = array_results[3]; // index 3 //--- находим верх и низ if(room_1>room_2) { high=room_1; low=room_2; } else { high=room_2; low=room_1; } Print(symbolsList[j], array_results[0]); Sleep(1000); } //--- } //+------------------------------------------------------------------+ //| Search for indicator extremums | //+------------------------------------------------------------------+ bool SearchZigZagExtremums(const int count,double &array_results[]) { if(!ArrayIsDynamic(array_results)) { Print("This a no dynamic array!"); return(false); } ArrayFree(array_results); ArrayResize(array_results,count); ArraySetAsSeries(array_results,true); int buffer_num=0; // indicator buffer number double arr_buffer[]; ArraySetAsSeries(arr_buffer,true); //--- reset error code ResetLastError(); //--- fill a part of the iCustom array with values from the indicator buffer int copied=CopyBuffer(handle_iCustom,buffer_num,0,100,arr_buffer); if(copied<0) { //--- if the copying fails, tell the error code PrintFormat("Failed to copy data from the iCustom indicator, error code %d",GetLastError()); //--- quit with zero result - it means that the indicator is considered as not calculated return(false); } int elements=0; for(int i=0; i<copied; i++) { if(arr_buffer[i]!=0) { array_results[elements]=arr_buffer[i]; elements++; if(elements==count) break; } } if(elements==count) return(true); //--- return(false); }
Goal : I want this program to be modified so it can read buffers
double room_0 = array_results[0]; // index 0 double room_1 = array_results[1]; // index 1 double room_2 = array_results[2]; // index 2 double room_3 = array_results[3]; // index 3
for each symbol existed in marketwatch and when i print
Print(symbolsList[j], array_results[0]);
I get results like
Symbol_1 buffer_for_Symbol_1 for PERIOD_1
Symbol_2 buffer_for_Symbol_2 for PERIOD_2
like this
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