Is it possible to write an EA to scan all the currency pairs and commodities and then find the one with the most strong trend in MT4?

[tao zemin.]

HI, all. Is it possible to write an EA to scan all the currency pairs and commodities and then find the one with the most strong trend in MT4?I 

I am still new to MT4. MY current intention is to analyze mutiple time frames for each currency pair and commodities.  and then to select the one with the strongest trend. Now, I intend to do this by ADX. japanese candlstick pattern, etc. I wonder whether my idea is viable in MT4? THanks a lot for your feedback and suggestions....

[zzuegg]

sure, best is to make an array with symbols:

String symbols[]={"Eurusd","Usdjpy",...);

and then iterate over the array

for(int i=0;i<ArraySize(symbols);i++){
 value_for_symbol=iadx(symbols[i]....);
}

[tao zemin.]

zzuegg:

sure, best is to make an array with symbols:

and then iterate over the array

HI, all. thanks for your suggestionsa and guidance. I　have found more information about obtaining the list for all symbols that the current account can trade in the two links below:

https://www.mql5.com/en/code/9102

https://www.mql5.com/en/code/8317

Hopefully it will be useful who have the same intention as i did....

 

[RFB]

Part you asked (without commodities - only Fx), from my file:

/***/
bool rang_O_done()
 {
  if(timerCharts()) return(0);
  int sp;
  double val[], oval, hi,lo;
  ArrayInitialize(stlo,0.0);
  for(int s=0;s<size;s++) // stoploss as average bar
   {
    for(int p=0;p<chartsUse;p++)
     {
      sp=s*p+p;
      hi=iMA(sym[s],per[p],10,0,2,PRICE_HIGH,1);
      lo=iMA(sym[s],per[p],10,0,2,PRICE_LOW,1);
      stlo[sp]=2*(hi-lo);
     }
   }
  ArrayResize(val, size*chartsUse);
  ArrayInitialize(val,0.0);
  del=chartsUse;
  for(s=0;s<size;s++)
   { // value on every bar by lot--time--return
    symInfo(sym[s]);
    for(p=0;p<chartsUse;p++)
     {
      sp=s*p+p;
      if(!(0.5*stlo[sp]>2*mi[13]) || !(0.5*stlo[sp]>2*mi[33])) continue;
      if(p<chartsUse-1)
       {
        if(!(0.5*stlo[sp+1]>3*mi[13]) || !(0.5*stlo[sp+1]>3*mi[33])) continue;
        // confirm-search trend       
        if(stlo[sp+1]<2*stlo[sp]) continue;
       }
      val[sp]=stlo[sp]/mi[11]*mi[16]/(0.5*per[p+1])*orderLots(sym[s],stlo[sp]);// adapt it if other than Fx...
      if(p<del) del=p; // time for re-calculate
     }
   }
  act=1;
  ArrayInitialize(rang,-1.0);
  for(s=0;s<size*chartsUse;s++) // sort by val[] in rang[]
   { 
    oval=0.0;
    sp=-1;
    for(p=0;p<size*chartsUse;p++)
     {
      if(rang[p]>-0.5) continue;
      if(val[p]>oval)
       {
        oval=val[p]; 
        sp=p;
       }
     }
    if(oval>0.0 && sp>-1) 
     {
      rang[sp]=s;
      val[sp]=-1;
      act=s+1;
     }
    else break;
   }
  return(0);
 }
 

From my old file on old USB's , not lost ;-). I used "freaky" arrays you may need to adapt them by your array needs. Just idea if you need Em.